utellme,
I think if you want absolutely all the details in music, try the OPA627s.
Full Version: The ZERO DAC + Headamp (NO 56K)
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I'm just scare, I will be disappointted after swap in the expensive 3 set opa627. 
prior to this Zero, both my marantz CD and Mission spks are good in vocal but leaking a bit bass, that is why, I used passive wf. anyway, the stock opamp did really add in some tube amp sensation which is amazing to me.
I'll wrote wescal(KL) to ask about LT1364 and Lt1361 and hope they will come back to me. Since its cheap not harm trying mah, is still not satisfy then try opa627 in the DAC section.
prior to this Zero, both my marantz CD and Mission spks are good in vocal but leaking a bit bass, that is why, I used passive wf. anyway, the stock opamp did really add in some tube amp sensation which is amazing to me.I'll wrote wescal(KL) to ask about LT1364 and Lt1361 and hope they will come back to me. Since its cheap not harm trying mah, is still not satisfy then try opa627 in the DAC section.
QUOTE(utellme @ Apr 4 2008, 02:18 PM)
I'm just scare, I will be disappointted after swap in the expensive 3 set opa627. prior to this Zero, both my marantz CD and Mission spks are good in vocal but leaking a bit bass, that is why, I used passive wf. anyway, the stock opamp did really add in some tube amp sensation which is amazing to me.
I'll wrote wescal(KL) to ask about LT1364 and Lt1361 and hope they will come back to me. Since its cheap not harm trying mah, is still not satisfy then try opa627 in the DAC section.
prior to this Zero, both my marantz CD and Mission spks are good in vocal but leaking a bit bass, that is why, I used passive wf. anyway, the stock opamp did really add in some tube amp sensation which is amazing to me.I'll wrote wescal(KL) to ask about LT1364 and Lt1361 and hope they will come back to me. Since its cheap not harm trying mah, is still not satisfy then try opa627 in the DAC section.
QUOTE(utellme @ Apr 4 2008, 02:18 PM)
I'm just scare, I will be disappointted after swap in the expensive 3 set opa627. prior to this Zero, both my marantz CD and Mission spks are good in vocal but leaking a bit bass, that is why, I used passive wf. anyway, the stock opamp did really add in some tube amp sensation which is amazing to me.
I'll wrote wescal(KL) to ask about LT1364 and Lt1361 and hope they will come back to me. Since its cheap not harm trying mah, is still not satisfy then try opa627 in the DAC section.
prior to this Zero, both my marantz CD and Mission spks are good in vocal but leaking a bit bass, that is why, I used passive wf. anyway, the stock opamp did really add in some tube amp sensation which is amazing to me.I'll wrote wescal(KL) to ask about LT1364 and Lt1361 and hope they will come back to me. Since its cheap not harm trying mah, is still not satisfy then try opa627 in the DAC section.
Hi bro, I guess you only need 1 set of OPA627 since you are stick with speaker setup, just change the OPA2604 in DAC section to OPA627 is good
I think the local price should be abit steep. Ok, I'm here officially announce a no service fees charge LT opamp bulk order.Details:
LT1364 USD4.58/each x 3.2(conversion rate) = RM14.7 (Most balanced of the bunch, highly recommended)
LT1361 USD4.25/each x 3.2(conversion rate) = RM13.6 (Nice mid but lack of transparent high and bass)
LT1469 USD5.85/each x 3.2(conversion rate) = RM18.7 (Most detailed of the bunch but mid and bass not that great)
Shipping fees is USD34 per shipment, sorry for expensive rate cos it's the LT only settle for FeDex no other choice, let's say if total order unit is 20units, then USD34/20units = USD1.7/unit is the shipping rate, ok?
LT1364
=====
1.
2.
3.
LT1361
=====
1.
2.
3.
LT1469
=====
1.
2.
3.
Let's fill up the blanks
Here's a little opamp review for Zero headphone amp. In the DAC section, I used the OPA627.
______
LT1361
My favourtie of the bunch, it is very musical and provides adequate amount of details. The midrange is pretty good too. Listening to this, makes your feet go tapping
LT1057
This opamp is not for everyone. It has a very prominent midrange at the expense of the highs. You could say it gives a very "acoustic" sound. It isn't very musical, and rock songs on this lacks excitement almost to the point of being boring.
LT1469
This opamp is kind of the opposite of the LT1057. Highs and lows at the expense of the midrange. I'm not sure bout this, bout I do find it rather revealing. Have you ever been to band performance, whereby the guitar and drums is really loud compared to the singer mic. That's what I think this opamp sounds like..
_____
I don't think there is a good or bad opamp in the Zero. It all comes down to your own preference. Some might looks for a easy going opamp while others prefer a more musical setup. Have fun rolling opamps!
______
LT1361
My favourtie of the bunch, it is very musical and provides adequate amount of details. The midrange is pretty good too. Listening to this, makes your feet go tapping
LT1057
This opamp is not for everyone. It has a very prominent midrange at the expense of the highs. You could say it gives a very "acoustic" sound. It isn't very musical, and rock songs on this lacks excitement almost to the point of being boring.
LT1469
This opamp is kind of the opposite of the LT1057. Highs and lows at the expense of the midrange. I'm not sure bout this, bout I do find it rather revealing. Have you ever been to band performance, whereby the guitar and drums is really loud compared to the singer mic. That's what I think this opamp sounds like..
_____
I don't think there is a good or bad opamp in the Zero. It all comes down to your own preference. Some might looks for a easy going opamp while others prefer a more musical setup. Have fun rolling opamps!
QUOTE(GodLuvSxS @ Apr 4 2008, 02:35 PM)
Hi bro, I guess you only need 1 set of OPA627 since you are stick with speaker setup, just change the OPA2604 in DAC section to OPA627 is good I think the local price should be abit steep. Ok, I'm here officially announce a no service fees charge LT opamp bulk order.
Details:
LT1364 USD4.58/each x 3.2(conversion rate) = RM14.7 (Most balanced of the bunch, highly recommended)
LT1361 USD4.25/each x 3.2(conversion rate) = RM13.6 (Nice mid but lack of transparent high and bass)
LT1469 USD5.85/each x 3.2(conversion rate) = RM18.7 (Most detailed of the bunch but mid and bass not that great)
Shipping fees is USD34 per shipment, sorry for expensive rate cos it's the LT only settle for FeDex no other choice, let's say if total order unit is 20units, then USD34/20units = USD1.7/unit is the shipping rate, ok?
LT1364
=====
1. UTELLME (1 unit)
2.
3.
LT1361
=====
1. UTELLME (1 unit)
2.
3.
LT1469
=====
1.
2.
3.
Let's fill up the blanks
I think the local price should be abit steep. Ok, I'm here officially announce a no service fees charge LT opamp bulk order.Details:
LT1364 USD4.58/each x 3.2(conversion rate) = RM14.7 (Most balanced of the bunch, highly recommended)
LT1361 USD4.25/each x 3.2(conversion rate) = RM13.6 (Nice mid but lack of transparent high and bass)
LT1469 USD5.85/each x 3.2(conversion rate) = RM18.7 (Most detailed of the bunch but mid and bass not that great)
Shipping fees is USD34 per shipment, sorry for expensive rate cos it's the LT only settle for FeDex no other choice, let's say if total order unit is 20units, then USD34/20units = USD1.7/unit is the shipping rate, ok?
LT1364
=====
1. UTELLME (1 unit)
2.
3.
LT1361
=====
1. UTELLME (1 unit)
2.
3.
LT1469
=====
1.
2.
3.
Let's fill up the blanks
Anyone willing to let go 1 set - 2 X OPA672BP + 1 BrownDog ? I'm interested.
@utellme
PM mikelanding... see if he has any to spare...
anyway.... i just tried my ZERO with my X3i. and i didnt like it. sounded very weird. bass was lacking and it was also very weird... like something not right. cant put my finger on it...but it just wasnt right for me.
but the X3i sounds superb direct from my W810i
PM mikelanding... see if he has any to spare...
anyway.... i just tried my ZERO with my X3i. and i didnt like it. sounded very weird. bass was lacking and it was also very weird... like something not right. cant put my finger on it...but it just wasnt right for me.
but the X3i sounds superb direct from my W810i
i used pc as my source..
my pc doesn't have the spdif connection so i used the convertor which i purchased from godluv as well.. my setup is like this: pc -> usb to spdif convertor -> zero dac -> ms-1
i been burning my zero for around 2 to 3 days.
i found out that, i am really really disappointed with the sound.. background noise is so obviously and i am using wma lossless which all from cd audio converted it. or i used audio cd to test as well.. background noise is real loud, overall high/mid/bass so "bad", cant reveal the feeling of that music.. so "digital"..
can anyone tell me what's wrong? is the converter cause all these problem or i need not used pc as source.. should i get a reliable cd player?.. or headphone problem? surprisingly setup of zune 30gb -> visely amp -> ms-1 is "FAR" better than the dac setup i mentioned above..
hmmmmm??
my pc doesn't have the spdif connection so i used the convertor which i purchased from godluv as well.. my setup is like this: pc -> usb to spdif convertor -> zero dac -> ms-1
i been burning my zero for around 2 to 3 days.
i found out that, i am really really disappointed with the sound.. background noise is so obviously and i am using wma lossless which all from cd audio converted it. or i used audio cd to test as well.. background noise is real loud, overall high/mid/bass so "bad", cant reveal the feeling of that music.. so "digital"..
can anyone tell me what's wrong? is the converter cause all these problem or i need not used pc as source.. should i get a reliable cd player?.. or headphone problem? surprisingly setup of zune 30gb -> visely amp -> ms-1 is "FAR" better than the dac setup i mentioned above..
hmmmmm??
Hmm... not sure about your problem. but I'm using the same setup as you,
PC > USB spdif converter> Speakers/Headphones but I don't have any background noise.. could it be that there's something wrong with the Zero you got?
I used a variety of sources from flac to mp3 which are only 128kb and haven't notice any background noise...
PC > USB spdif converter> Speakers/Headphones but I don't have any background noise.. could it be that there's something wrong with the Zero you got?
I used a variety of sources from flac to mp3 which are only 128kb and haven't notice any background noise...
what is ms-1? dont even know that ?suspect no amp?
QUOTE(Andiboi @ Apr 4 2008, 08:23 PM)
i used pc as my source..
my pc doesn't have the spdif connection so i used the convertor which i purchased from godluv as well.. my setup is like this: pc -> usb to spdif convertor -> zero dac -> ms-1
i been burning my zero for around 2 to 3 days.
i found out that, i am really really disappointed with the sound.. background noise is so obviously and i am using wma lossless which all from cd audio converted it. or i used audio cd to test as well.. background noise is real loud, overall high/mid/bass so "bad", cant reveal the feeling of that music.. so "digital"..
can anyone tell me what's wrong? is the converter cause all these problem or i need not used pc as source.. should i get a reliable cd player?.. or headphone problem? surprisingly setup of zune 30gb -> visely amp -> ms-1 is "FAR" better than the dac setup i mentioned above..
hmmmmm??
my pc doesn't have the spdif connection so i used the convertor which i purchased from godluv as well.. my setup is like this: pc -> usb to spdif convertor -> zero dac -> ms-1
i been burning my zero for around 2 to 3 days.
i found out that, i am really really disappointed with the sound.. background noise is so obviously and i am using wma lossless which all from cd audio converted it. or i used audio cd to test as well.. background noise is real loud, overall high/mid/bass so "bad", cant reveal the feeling of that music.. so "digital"..
can anyone tell me what's wrong? is the converter cause all these problem or i need not used pc as source.. should i get a reliable cd player?.. or headphone problem? surprisingly setup of zune 30gb -> visely amp -> ms-1 is "FAR" better than the dac setup i mentioned above..
hmmmmm??
Emmm ... background noise is obvious, i guess maybe you try to shift the power cord's plug to another power socket, cos last time I put my Aego 2 on a power adapter with lots of plug on it ends up background noise appear, after I shift it, noise no more
And bro Andiboi , you try to make sure every single cable is plugged properly cos loose connection may contribute to noise And did you ever tried to swap opamp? Maybe the opamp leg aint plugged in properly. I'm here to assist you to solve the problem, hope to see the result of the troubleshoot. Thanks
i'm using the same setup also... PC>USB spdif converter>Zero DAC>MS-1/senn hd555... didn't notice any noise. I even test the same setup n listen to madman DT990 that day, also haven't notice any noise.
I'd juz put the OPA627, very detail n cristal clear... thumbs up...
I'd juz put the OPA627, very detail n cristal clear... thumbs up...
hmm?..
let's forget about the noise issue.. what is your review with oem opamp and the setup that same as mine..
my short review after listen these few days, listen to like old vocal chinese song, the song is quite acceptable but the high doesn't shine, mid is weak and mostly covered by bass. listen to rock music, *shake head* channel separation is bad, when to the part that every instruments are beating and all i can say "bising" and not enjoying the music.
as conclusion: i am compromised with the sq, not the sq compromised me. a good sound quality doesn't need to be compromised.
now saving money for marantz cd5001 cd player and try to pair with this dac.
Opamps? i wonder where can i find it? my area is at petaling jaya/subang/sunway pyramid.
Thanks
let's forget about the noise issue.. what is your review with oem opamp and the setup that same as mine..
my short review after listen these few days, listen to like old vocal chinese song, the song is quite acceptable but the high doesn't shine, mid is weak and mostly covered by bass. listen to rock music, *shake head* channel separation is bad, when to the part that every instruments are beating and all i can say "bising" and not enjoying the music.
as conclusion: i am compromised with the sq, not the sq compromised me. a good sound quality doesn't need to be compromised.
now saving money for marantz cd5001 cd player and try to pair with this dac.
Opamps? i wonder where can i find it? my area is at petaling jaya/subang/sunway pyramid.
Thanks
QUOTE(Andiboi @ Apr 4 2008, 10:31 PM)
hmm?..
let's forget about the noise issue.. what is your review with oem opamp and the setup that same as mine..
my short review after listen these few days, listen to like old vocal chinese song, the song is quite acceptable but the high doesn't shine, mid is weak and mostly covered by bass. listen to rock music, *shake head* channel separation is bad, when to the part that every instruments are beating and all i can say "bising" and not enjoying the music.
as conclusion: i am compromised with the sq, not the sq compromised me. a good sound quality doesn't need to be compromised.
now saving money for marantz cd5001 cd player and try to pair with this dac.
Opamps? i wonder where can i find it? my area is at petaling jaya/subang/sunway pyramid.
Thanks
let's forget about the noise issue.. what is your review with oem opamp and the setup that same as mine..
my short review after listen these few days, listen to like old vocal chinese song, the song is quite acceptable but the high doesn't shine, mid is weak and mostly covered by bass. listen to rock music, *shake head* channel separation is bad, when to the part that every instruments are beating and all i can say "bising" and not enjoying the music.
as conclusion: i am compromised with the sq, not the sq compromised me. a good sound quality doesn't need to be compromised.
now saving money for marantz cd5001 cd player and try to pair with this dac.
Opamps? i wonder where can i find it? my area is at petaling jaya/subang/sunway pyramid.
Thanks
The stock opamp tends to be sound tubey, the high certainly doesnt shine while mid and bass certainly more dominating, i guess the OPA family opamp certainly not your cup of tea, try the LME49720 I provided along, please do give the ZERO a chance before classify it as an "you compromised" unit, the LME49720 sounds more detail, fast and bass is tight. Maybe you anticipate a RM4k worth of sound in this RM400 unit, i guess that's why you are disappointed
Steve,
You know where I can get those opamp chipset heat sinks? I think I might need some since the LT1361 runs quite warm..
You know where I can get those opamp chipset heat sinks? I think I might need some since the LT1361 runs quite warm..
QUOTE(kwekeugene @ Apr 4 2008, 11:09 PM)
Steve,
You know where I can get those opamp chipset heat sinks? I think I might need some since the LT1361 runs quite warm..
You know where I can get those opamp chipset heat sinks? I think I might need some since the LT1361 runs quite warm..
I think you can get it from Moderno, try PM him
QUOTE(GodLuvSxS @ Apr 4 2008, 10:54 PM)
The stock opamp tends to be sound tubey, the high certainly doesnt shine while mid and bass certainly more dominating, i guess the OPA family opamp certainly not your cup of tea, try the LME49720 I provided along, please do give the ZERO a chance before classify it as an "you compromised" unit, the LME49720 sounds more detail, fast and bass is tight. Maybe you anticipate a RM4k worth of sound in this RM400 unit, i guess that's why you are disappointed
one question: do i need to burn in the opamp? i mean if i change the opamp, do i need to burn in again? cause i change to lme49720, and spending few hours to play around the opamp rolling thing(kinda fun), i even put the opa2604 to head amp or the ne5532 to dac.. hahhaa... anyway between lme49720 and opa2604, i found that opa2604 is better than lme49720. cause at same volume which is quite loud, lme49720 hurt my ear and i turn the volume down and for some reason it still hurt my ear. if the answer of my question is yes, how long do i need to burn in the opamp?
i tried put the lme49720 to dac and opa2604 to head amp, i found that at the beginning of the song(i was like WOW, really nice), after awhile i found out that it sound getting worst at the middle of the song.. lol, i wonder why?
steve, i would like have lt1469,lt1364 and lt1361 opamps.
i getting addicted by playing opamps rolling stuff.
"third times of asking: i wish someone could tell me where to buy opamps beside online?"
Thanks
Just try the OPA627 on Browndog.
Now i listen to the music longer, till the song finish instead of jumping the 'fav' songs.
the feeling with OPA627 is quite obvious, so obvious and real that u think u are a step higher.
The bass and high is extended, more background music, giving the extension more depth.
However I feel the extended soundstage is making feel color or less neutral. (stock opamp is more tubelike, the vocal is rich and warm)
more so at certain knocking at guitar and drums. cant seem to hear the knocking coming out.
I just replaced the stock 2604 with browndog. Did I miss something?
site note : Boy, the feeling of this OPA627 is like opium.
Now i listen to the music longer, till the song finish instead of jumping the 'fav' songs.
the feeling with OPA627 is quite obvious, so obvious and real that u think u are a step higher.
The bass and high is extended, more background music, giving the extension more depth.
However I feel the extended soundstage is making feel color or less neutral. (stock opamp is more tubelike, the vocal is rich and warm)
more so at certain knocking at guitar and drums. cant seem to hear the knocking coming out.
I just replaced the stock 2604 with browndog. Did I miss something?
site note : Boy, the feeling of this OPA627 is like opium.
opa627 + browndog is way too expensive. >.<!
RM100 if i'm not mistaken.
RM100 if i'm not mistaken.
Hi all,
Since I got few pm about the opa627ap + browndog adapter. I guess is best for me to kick start 3rd Bulk.
I got 11 pcs Browndog adapters already arrived at my hand and ready to ship out. But the opa627ap need to order from my oversea friend. Min 4 units to kick start this bulk. ETA will be 1-2weeks after collected some deposit (RM15) to avoid FFK.
This might be the last bulk if all 11 pcs Browndog adapter finish coz too much hassle for me..
Price will be
Browndog adapter (1 pc) =RM9 (with opamp), RM10 (alone)
Opa627AP (1 pc) = RM45.5
Poslaju fee+handling = RM6
note: 1 complete set will consist 1 Browndog adapter + 2 pcs opamp
Please pm me if U still interested..
1st Bulk order list:
2nd bulk order list:
3rd Bulk order list: (10 Browndog adapter left...grab it before it gone!!)
1) utellme - 1 X Browndog adapter + 2X OPA627AP
Since I got few pm about the opa627ap + browndog adapter. I guess is best for me to kick start 3rd Bulk.
I got 11 pcs Browndog adapters already arrived at my hand and ready to ship out. But the opa627ap need to order from my oversea friend. Min 4 units to kick start this bulk. ETA will be 1-2weeks after collected some deposit (RM15) to avoid FFK.
This might be the last bulk if all 11 pcs Browndog adapter finish coz too much hassle for me..
Price will be
Browndog adapter (1 pc) =RM9 (with opamp), RM10 (alone)
Opa627AP (1 pc) = RM45.5
Poslaju fee+handling = RM6
note: 1 complete set will consist 1 Browndog adapter + 2 pcs opamp
Please pm me if U still interested..
1st Bulk order list:
» Click to show Spoiler - click again to hide... «
2nd bulk order list:
» Click to show Spoiler - click again to hide... «
3rd Bulk order list: (10 Browndog adapter left...grab it before it gone!!)
1) utellme - 1 X Browndog adapter + 2X OPA627AP
QUOTE(Andiboi @ Apr 4 2008, 11:37 PM)
one question: do i need to burn in the opamp? i mean if i change the opamp, do i need to burn in again? cause i change to lme49720, and spending few hours to play around the opamp rolling thing(kinda fun), i even put the opa2604 to head amp or the ne5532 to dac.. hahhaa... anyway between lme49720 and opa2604, i found that opa2604 is better than lme49720. cause at same volume which is quite loud, lme49720 hurt my ear and i turn the volume down and for some reason it still hurt my ear. if the answer of my question is yes, how long do i need to burn in the opamp?
i tried put the lme49720 to dac and opa2604 to head amp, i found that at the beginning of the song(i was like WOW, really nice), after awhile i found out that it sound getting worst at the middle of the song.. lol, i wonder why?
steve, i would like have lt1469,lt1364 and lt1361 opamps.
i getting addicted by playing opamps rolling stuff.
"third times of asking: i wish someone could tell me where to buy opamps beside online?"
Thanks
i tried put the lme49720 to dac and opa2604 to head amp, i found that at the beginning of the song(i was like WOW, really nice), after awhile i found out that it sound getting worst at the middle of the song.. lol, i wonder why?
steve, i would like have lt1469,lt1364 and lt1361 opamps.
i getting addicted by playing opamps rolling stuff.
"third times of asking: i wish someone could tell me where to buy opamps beside online?"
Thanks
Every new opamp need to burn in to reach the peak, around 50 hours it would have almost reach the peak
Anyway did you roll the opamp correctly? Every opamp got a small circle on one corner, make you follow the same direction where the default opamp at. Fail to do so may damage your unit, no joking!Bro, i think you should only try replacing the opamp in DAC section (the big board), unless you got two same opamp then only try to swap the headamp section (small board), imagine your car one side is 15inch wheel while the other side is 16inch wheel, it would be very imbalance, an imbalance setup wouldn't gives you best performance. And a reminder for you guys, only use those double type opamp not single type opamp unless you able to browndog it
About the LT opamp, i think those who want should let me know ASAP, so that I could arrange the bulk faster I could only know the best way to get opamp is order online since i dont quite know where all those component shop and prices here are way overpriced. Bro Andiboi, if you encounter any question, please do seek for reference here first before take action, cos a slight error might damage your ZERO dac, dont be shy, just ask! I will try my best to answer you
QUOTE(Andiboi @ Apr 4 2008, 10:31 PM)
hmm?..
let's forget about the noise issue.. what is your review with oem opamp and the setup that same as mine..
my short review after listen these few days, listen to like old vocal chinese song, the song is quite acceptable but the high doesn't shine, mid is weak and mostly covered by bass. listen to rock music, *shake head* channel separation is bad, when to the part that every instruments are beating and all i can say "bising" and not enjoying the music.
as conclusion: i am compromised with the sq, not the sq compromised me. a good sound quality doesn't need to be compromised.
now saving money for marantz cd5001 cd player and try to pair with this dac.
Opamps? i wonder where can i find it? my area is at petaling jaya/subang/sunway pyramid.
Thanks
let's forget about the noise issue.. what is your review with oem opamp and the setup that same as mine..
my short review after listen these few days, listen to like old vocal chinese song, the song is quite acceptable but the high doesn't shine, mid is weak and mostly covered by bass. listen to rock music, *shake head* channel separation is bad, when to the part that every instruments are beating and all i can say "bising" and not enjoying the music.
as conclusion: i am compromised with the sq, not the sq compromised me. a good sound quality doesn't need to be compromised.
now saving money for marantz cd5001 cd player and try to pair with this dac.
Opamps? i wonder where can i find it? my area is at petaling jaya/subang/sunway pyramid.
Thanks
you don't need marantz cd5001 to pair with the Zero, any normal DVDP can do the job.
What happens if you mount the opamps in the wrong direction. Will I still get music, or it will be dead silent?
i think the opamp would be burnt.... thats what was told me to when i got my first opamps...."stick it in properly, follow the notch otherwise the opamp will burn"
anyway.. as for the stock opamps...i kinda like them actually....especially with my DT990 which has extended highs and lows....and recessed midrange.
it actually helped to tame the highs on my DT990 abit. though bass was slightly lacking. but the mids were awesome. though yeah..sounds kinda tubey....but not by much imho. so it wasnt so boring listening to metal for me.
but after putting in the 2107, i dont think i can go back to stock opamps. tamed highs, better bass, and a lil recessed mids. i can live with it. excellent soundstage and detail honestly.
now i cant wait for my 2units of 627 to arrive from mike's 2nd bulk. then can plug in to the headamp section
anyway.. as for the stock opamps...i kinda like them actually....especially with my DT990 which has extended highs and lows....and recessed midrange.
it actually helped to tame the highs on my DT990 abit. though bass was slightly lacking. but the mids were awesome. though yeah..sounds kinda tubey....but not by much imho. so it wasnt so boring listening to metal for me.
but after putting in the 2107, i dont think i can go back to stock opamps. tamed highs, better bass, and a lil recessed mids. i can live with it. excellent soundstage and detail honestly.
now i cant wait for my 2units of 627 to arrive from mike's 2nd bulk. then can plug in to the headamp section
Thanks for the info. So in total you'll have 3 dual OPA627s in your Zero. And you already upgraded yours with better caps/components earlier. I think the upgrades already cost as much as your Zero if not more 
Ultimate Extreme Zero DAC/Amp?
Ultimate Extreme Zero DAC/Amp?
Emmm .... I just cant see any LME49720 impression in DAC section after few days of waiting? You guys threw the tissue paper wrap into rubbish bin ade?
Well I tried LME49720 but I dont seem to find any discernable diff. plus i was so eager to try out the OPA627, so cant comment much. do u need to burn in the OPA 627 or not ?
After one day of listening intensively to the LT1361 in the amp section, I changed it to LT1364. I think this will be my final setup for now.
The LT1364 is very close to the LT1361 in everything except for midrange. For most songs, I found it rather lacking at the midrange and after listening for some time, it was fatiguing. LT1364 adds on to the midrange to make listening more natural while preserving the qualities of LT1361.
LT1057 is a no go for me, too much detail is lost in music. Didn't like the LT1469 either, too much of midrange is lost. How about you guys, what setup are you using?
The LT1364 is very close to the LT1361 in everything except for midrange. For most songs, I found it rather lacking at the midrange and after listening for some time, it was fatiguing. LT1364 adds on to the midrange to make listening more natural while preserving the qualities of LT1361.
LT1057 is a no go for me, too much detail is lost in music. Didn't like the LT1469 either, too much of midrange is lost. How about you guys, what setup are you using?
QUOTE(ccschua @ Apr 5 2008, 09:41 PM)
Well I tried LME49720 but I dont seem to find any discernable diff. plus i was so eager to try out the OPA627, so cant comment much. do u need to burn in the OPA 627 or not ?
I think every single OPAMP need at least 50 hours of burn in to get around 80% - 90% of the sound
QUOTE(kwekeugene @ Apr 5 2008, 09:49 PM)
After one day of listening intensively to the LT1361 in the amp section, I changed it to LT1364. I think this will be my final setup for now.
The LT1364 is very close to the LT1361 in everything except for midrange. For most songs, I found it rather lacking at the midrange and after listening for some time, it was fatiguing. LT1364 adds on to the midrange to make listening more natural while preserving the qualities of LT1361.
LT1057 is a no go for me, too much detail is lost in music. Didn't like the LT1469 either, too much of midrange is lost. How about you guys, what setup are you using?
The LT1364 is very close to the LT1361 in everything except for midrange. For most songs, I found it rather lacking at the midrange and after listening for some time, it was fatiguing. LT1364 adds on to the midrange to make listening more natural while preserving the qualities of LT1361.
LT1057 is a no go for me, too much detail is lost in music. Didn't like the LT1469 either, too much of midrange is lost. How about you guys, what setup are you using?
Looks like LT1364 performing quite all round, you should try it at the DAC area
How is like comparing OPA 627 with LT 1364 in the DAC section? Has anyone tried it?
LT1364 x2
LT1361 x2
LT1469 x2
steve, count me in to the opamps bulk. thanks.
LT1361 x2
LT1469 x2
steve, count me in to the opamps bulk.
thanks.
QUOTE(kwekeugene @ Apr 5 2008, 11:24 AM)
Thanks for the info. So in total you'll have 3 dual OPA627s in your Zero. And you already upgraded yours with better caps/components earlier. I think the upgrades already cost as much as your Zero if not more
Ultimate Extreme Zero DAC/Amp?
Ultimate Extreme Zero DAC/Amp?
actually the mods + opamps alone costs more than the ZERO itself already
now just itching for the 627s to arrive..
QUOTE(GodLuvSxS @ Apr 5 2008, 09:35 PM)
Emmm .... I just cant see any LME49720 impression in DAC section after few days of waiting? You guys threw the tissue paper wrap into rubbish bin ade?
i still cant find mine...cant remember where i put it
LT1364
=====
1. Andiboi
2. Andiboi
3.
4.
5.
LT1361
=====
1. Andiboi
2. Andiboi
3.
4.
5.
LT1469
=====
1. Andiboi
2. Andiboi
3.
4.
5.
Now we got the ball start kicking, anyone else? Target a 20 unit bulk
=====
1. Andiboi
2. Andiboi
3.
4.
5.
LT1361
=====
1. Andiboi
2. Andiboi
3.
4.
5.
LT1469
=====
1. Andiboi
2. Andiboi
3.
4.
5.
Now we got the ball start kicking, anyone else? Target a 20 unit bulk
As I am going thru the thread, I found the experience is more rewarding if I try to experiment diff opamp and analyse the behaviors of opamp for your liking.Pls find review from lawrence here and lets see who wants what.
QUOTE
I am highly recommended OPA627.
See below:
The op-amps used are generally of poor quality, corrupting the analogue signal, having a disastrous effect on the sonic capabilities of the CD player. The effects are a smearing of detail, reduced dynamics, congestion of instruments on complex music passages causing a mass of sound, rather than a spacious, airy, sound stage. The quality of the mid-high frequencies is particularly poor, where the mid-band is brittle and aggressive, and higher frequencies are edgy, cold and fatiguing to listen to.
The following op-amps produce the poorest results; NE5534, NJM2114, NE5532, NJM4558, NJM4560, AD711, AD712, LM833.
The performance of op-amps from different manufacturers varies considerably. Therefore, selecting a single type of op-amp to meet the parameters required for the analogue output stage involved analysing data sheets and conducting many listening tests.
The important parameters for sound quality are high speed (or bandwidth) low THD, fast settling, and low input noise. The most natural and musical sounding were FET-Input types as opposed to bipolar.
Burr Brown OPA 627 BP(single, ceramic) on Browndog adaptor
Price: US$28 each (Total US$56 for 2 singles) Browndog adaptor $5 Total: $61
Comment: Two words sum this chip up........ "absolute class" This is single chip and it was necessary to fit two single channel 627's onto a single to dual Browndog adaptor which Adapts two single-channel DIP-8 op-amps to a dual DIP-8 pinout. These 2 single channel op amps absolutely trounced anything that had gone before them ..... the width of the soundstage, the clarity and the sheer presence make this my choice of op amp for use in the Chiarra without a shadow of a doubt. The sound is just so "clean", so "natural", so "musical" and so "detailed" with the 627's on board. The Burr Brown 627 "is" headphone heaven....... absolute class act.
LM4562(dual, ceramic)
Price: US$30.
Comment : A "Very" revealing chip, sound similar to the OPA627 but puncher around the edges. I found this chip gave out "way" too much information for my liking. It is analytical to the point that certain pieces of music can become impossible to listen to, especially bad recordings, it reproduces every last detail / imperfection with microscopic accuracy which, at times, can be detrimental to the overall enjoyment of the music. For those that love a warts and all insight into the music then this is the star of the show but it may not be to everyone liking. It may be an op amp which can beat OPA627.
Burr Brown OPA2604 (dual, ceramic)
Price: US$10.
Comment: OPA2604 sounded very warm, very laid back and very easy to listen to but slightly veiled in the detail department. "Chocolaty" and "syrupy" though a good easy to listen to Op amp., This may just be what the doctor ordered for those who like a laid back, thick, chocolaty, easy going and easy to listen to sound.
Linear techonolgy LT1057(dual, ceramic)
Price: US$20,
Comment: Without a shadow of a doubt this op amp is the star of the the centry. Easy to listen to, easy to pick out every last detail and ever so natural. There was an ethereal quality to the sound that only ever heard on high quality loudspeaker based systems. It's hard to put what this op amp does into words but listening to the sound with it on board is as close to headphone heaven. Very analytical.
Linear techonolgy LT1028(single, ceramic) on Browndog adaptor
Price: US$15 each (Total US$30 for 2 singles) Browndog adaptor $5 Total: $35
Comment: It provided very similar results to the LT-1057 but each component of the sound was treated to an additional air of realism and effortless delivery that was immediately evident.
Linear techonolgy LT1028(single, metal) on Browndog adaptor
Price: US$25 each (Total US$50 for 2 singles) Browndog adaptor $5 Total: $52
Comment: It provided very similar results to the LT-1028 but the sound is ten times better LT-1028 with their punch , detail , range of frequency ..... especially the naturality.
Analog device AD797 (single, ceramic)
Price: US$25 each (Total US$50 for 2 singles) Browndog adaptor $5 Total: $52
Comment : Smooth, highly analytical, warm, uncoloured, laid back yet all detail is present (and then some) Very electrostatic quality to the sound with that super solid state bass underpinning the proceedings without overwhelming them. Start and stops are followed by an inky black silence and the timbre of the drums is very realistic indeed. Something that is very evident with this op amp is it's inherent ability to provide accurate timing which I really do like! There is no bass overhang, the drums start and stop as they should and, as a result, the timing is pretty much spot on. This is like listening to music with a stethoscope with the metronome ticking away in the background but it also adds a touch of valium to make the experience very bearable and extremely enjoyable.
Analog device DY2000 (dual, ceramic)
Price: US$20
Comment : These chips makes the sound more valve like than the tube sound ever did if that can possibly make any sense! Melodious, slightly laid back and warm yet it brings out every last bit of detail from a recording. Overall a very nice sound. A kind of hybrid valve and solid state mix which gives the best of both worlds. Nice smooth valve like mids and highs with lovely solid state bass oomph . This is the Op amp for those who prefer a valve like sound but would also like a solid state bottom end delivery. With this Op amp you can have your cake and eat it. Smooth as silk.
Analog device DY2000 (dual, metal)
Price: US$35.
Comment : It provided very similar results to the DY2000 ceramic but the sound is ten times better with their punch , detail , range of frequency ..... especially the naturality.
Thank you very much !
Best regards,
Lawrence
See below:
The op-amps used are generally of poor quality, corrupting the analogue signal, having a disastrous effect on the sonic capabilities of the CD player. The effects are a smearing of detail, reduced dynamics, congestion of instruments on complex music passages causing a mass of sound, rather than a spacious, airy, sound stage. The quality of the mid-high frequencies is particularly poor, where the mid-band is brittle and aggressive, and higher frequencies are edgy, cold and fatiguing to listen to.
The following op-amps produce the poorest results; NE5534, NJM2114, NE5532, NJM4558, NJM4560, AD711, AD712, LM833.
The performance of op-amps from different manufacturers varies considerably. Therefore, selecting a single type of op-amp to meet the parameters required for the analogue output stage involved analysing data sheets and conducting many listening tests.
The important parameters for sound quality are high speed (or bandwidth) low THD, fast settling, and low input noise. The most natural and musical sounding were FET-Input types as opposed to bipolar.
Burr Brown OPA 627 BP(single, ceramic) on Browndog adaptor
Price: US$28 each (Total US$56 for 2 singles) Browndog adaptor $5 Total: $61
Comment: Two words sum this chip up........ "absolute class" This is single chip and it was necessary to fit two single channel 627's onto a single to dual Browndog adaptor which Adapts two single-channel DIP-8 op-amps to a dual DIP-8 pinout. These 2 single channel op amps absolutely trounced anything that had gone before them ..... the width of the soundstage, the clarity and the sheer presence make this my choice of op amp for use in the Chiarra without a shadow of a doubt. The sound is just so "clean", so "natural", so "musical" and so "detailed" with the 627's on board. The Burr Brown 627 "is" headphone heaven....... absolute class act.
LM4562(dual, ceramic)
Price: US$30.
Comment : A "Very" revealing chip, sound similar to the OPA627 but puncher around the edges. I found this chip gave out "way" too much information for my liking. It is analytical to the point that certain pieces of music can become impossible to listen to, especially bad recordings, it reproduces every last detail / imperfection with microscopic accuracy which, at times, can be detrimental to the overall enjoyment of the music. For those that love a warts and all insight into the music then this is the star of the show but it may not be to everyone liking. It may be an op amp which can beat OPA627.
Burr Brown OPA2604 (dual, ceramic)
Price: US$10.
Comment: OPA2604 sounded very warm, very laid back and very easy to listen to but slightly veiled in the detail department. "Chocolaty" and "syrupy" though a good easy to listen to Op amp., This may just be what the doctor ordered for those who like a laid back, thick, chocolaty, easy going and easy to listen to sound.
Linear techonolgy LT1057(dual, ceramic)
Price: US$20,
Comment: Without a shadow of a doubt this op amp is the star of the the centry. Easy to listen to, easy to pick out every last detail and ever so natural. There was an ethereal quality to the sound that only ever heard on high quality loudspeaker based systems. It's hard to put what this op amp does into words but listening to the sound with it on board is as close to headphone heaven. Very analytical.
Linear techonolgy LT1028(single, ceramic) on Browndog adaptor
Price: US$15 each (Total US$30 for 2 singles) Browndog adaptor $5 Total: $35
Comment: It provided very similar results to the LT-1057 but each component of the sound was treated to an additional air of realism and effortless delivery that was immediately evident.
Linear techonolgy LT1028(single, metal) on Browndog adaptor
Price: US$25 each (Total US$50 for 2 singles) Browndog adaptor $5 Total: $52
Comment: It provided very similar results to the LT-1028 but the sound is ten times better LT-1028 with their punch , detail , range of frequency ..... especially the naturality.
Analog device AD797 (single, ceramic)
Price: US$25 each (Total US$50 for 2 singles) Browndog adaptor $5 Total: $52
Comment : Smooth, highly analytical, warm, uncoloured, laid back yet all detail is present (and then some) Very electrostatic quality to the sound with that super solid state bass underpinning the proceedings without overwhelming them. Start and stops are followed by an inky black silence and the timbre of the drums is very realistic indeed. Something that is very evident with this op amp is it's inherent ability to provide accurate timing which I really do like! There is no bass overhang, the drums start and stop as they should and, as a result, the timing is pretty much spot on. This is like listening to music with a stethoscope with the metronome ticking away in the background but it also adds a touch of valium to make the experience very bearable and extremely enjoyable.
Analog device DY2000 (dual, ceramic)
Price: US$20
Comment : These chips makes the sound more valve like than the tube sound ever did if that can possibly make any sense! Melodious, slightly laid back and warm yet it brings out every last bit of detail from a recording. Overall a very nice sound. A kind of hybrid valve and solid state mix which gives the best of both worlds. Nice smooth valve like mids and highs with lovely solid state bass oomph . This is the Op amp for those who prefer a valve like sound but would also like a solid state bottom end delivery. With this Op amp you can have your cake and eat it. Smooth as silk.
Analog device DY2000 (dual, metal)
Price: US$35.
Comment : It provided very similar results to the DY2000 ceramic but the sound is ten times better with their punch , detail , range of frequency ..... especially the naturality.
Thank you very much !
Best regards,
Lawrence
ok, i have to start apologize my previous statement or feedback.
Today i spent 3 to 4 hours listening music(playing computer in the same time), i found out that what i listen is totally different to what i listen few days back. Everything is improved than b4, i never believe the term of "Burn-in" back then. Lol. I didn't know it can be such big different(HUGE) before burn-in and after burn-in. I really enjoy listening right now and haven't change any opamp yet(it's still all stock/oem). What i like now is the bass become more live and deep, voice become neutral than before, mid is clear and balance. Overall, it served me real well now.
Today i spent 3 to 4 hours listening music(playing computer in the same time), i found out that what i listen is totally different to what i listen few days back. Everything is improved than b4, i never believe the term of "Burn-in" back then. Lol. I didn't know it can be such big different(HUGE) before burn-in and after burn-in. I really enjoy listening right now and haven't change any opamp yet(it's still all stock/oem). What i like now is the bass become more live and deep, voice become neutral than before, mid is clear and balance. Overall, it served me real well now.
QUOTE(Andiboi @ Apr 7 2008, 12:25 AM)
ok, i have to start apologize my previous statement or feedback.
Today i spent 3 to 4 hours listening music(playing computer in the same time), i found out that what i listen is totally different to what i listen few days back. Everything is improved than b4, i never believe the term of "Burn-in" back then. Lol. I didn't know it can be such big different(HUGE) before burn-in and after burn-in. I really enjoy listening right now and haven't change any opamp yet(it's still all stock/oem). What i like now is the bass become more live and deep, voice become neutral than before, mid is clear and balance. Overall, it served me real well now.
Today i spent 3 to 4 hours listening music(playing computer in the same time), i found out that what i listen is totally different to what i listen few days back. Everything is improved than b4, i never believe the term of "Burn-in" back then. Lol. I didn't know it can be such big different(HUGE) before burn-in and after burn-in. I really enjoy listening right now and haven't change any opamp yet(it's still all stock/oem). What i like now is the bass become more live and deep, voice become neutral than before, mid is clear and balance. Overall, it served me real well now.
Emmm ... it's ok, it's usually takes time to make a doubter to become believer
That's why I always mentioned always give around one week time for the gadget to burn in, it sounds lots different So still no body wanna follow up the LT opamp bulk? mADmAN? ccschua? dark_evilz? utellme?
I think Lawrence's sound preference is more towards the "tube" sound signature. You can notice it in the stock Zero sound. And further stated with his support for the LT1057
Based on what Lawrence say make me tick for LT1057, AD797 on browndog and DY2000 (metal). I would also like to try LT1364.
kwekeugene, can i try yr opamp?
kwekeugene, can i try yr opamp?
QUOTE(GodLuvSxS @ Apr 7 2008, 12:37 AM)
Emmm ... it's ok, it's usually takes time to make a doubter to become believer That's why I always mentioned always give around one week time for the gadget to burn in, it sounds lots different
So still no body wanna follow up the LT opamp bulk? mADmAN? ccschua? dark_evilz? utellme?
That's why I always mentioned always give around one week time for the gadget to burn in, it sounds lots different So still no body wanna follow up the LT opamp bulk? mADmAN? ccschua? dark_evilz? utellme?
How much does those opamp costs?
QUOTE(GodLuvSxS @ Apr 7 2008, 12:37 AM)
Emmm ... it's ok, it's usually takes time to make a doubter to become believer That's why I always mentioned always give around one week time for the gadget to burn in, it sounds lots different
So still no body wanna follow up the LT opamp bulk? mADmAN? ccschua? dark_evilz? utellme?
That's why I always mentioned always give around one week time for the gadget to burn in, it sounds lots different So still no body wanna follow up the LT opamp bulk? mADmAN? ccschua? dark_evilz? utellme?
GodLuvSxs, I wld like this.
LT1364 x 1
LT1361 x 1
QUOTE(ccschua @ Apr 7 2008, 09:31 AM)
Based on what Lawrence say make me tick for LT1057, AD797 on browndog and DY2000 (metal). I would also like to try LT1364.
kwekeugene, can i try yr opamp?
kwekeugene, can i try yr opamp?
Sure, where's your location?
QUOTE(utellme @ Apr 7 2008, 10:16 AM)
GodLuvSxs, I wld like this.
LT1364 x 1
LT1361 x 1
LT1364 x 1
LT1361 x 1
I think if you want to put it in the amp section you would need (2 units).
Opps .... posted using GF's acc Will switch back to mine ASAP
Will switch back to mine ASAP
QUOTE(Najmods @ Apr 7 2008, 10:02 AM)
How much does those opamp costs?
Details:
LT1364 USD4.58/each x 3.3(conversion rate) = RM14.1 (Most balanced of the bunch, highly recommended)
LT1361 USD4.25/each x 3.3(conversion rate) = RM14.0 (Nice mid but lack of transparent high and bass)
LT1469 USD5.85/each x 3.3(conversion rate) = RM19.3 (Most detailed of the bunch but mid and bass not that great)
Shipping fees is USD34 per shipment, sorry for expensive rate cos it's the LT only settle for FeDex no other choice, let's say if total order unit is 20units, then USD34/20units = USD1.7/unit is the shipping rate
QUOTE(utellme @ Apr 7 2008, 10:16 AM)
GodLuvSxs, I wld like this.
LT1364 x 1
LT1361 x 1
LT1364 x 1
LT1361 x 1
LT1364
=====
1. Andiboi
2. Andiboi
3. utellme
4.
5.
LT1361
=====
1. Andiboi
2. Andiboi
3. utellme
4.
5.
LT1469
=====
1. Andiboi
2. Andiboi
3.
4.
5.
still got 12 unit to complete the 20 pcs bulk, or should we change to 15 unit bulk?
QUOTE(kwekeugene @ Apr 7 2008, 10:41 AM)
Sure, where's your location?
I think if you want to put it in the amp section you would need (2 units).
I think if you want to put it in the amp section you would need (2 units).
I think bro utellme only using it as DAC connect to his speaker setup, rich dude which got place and money to setup speaker LOL So Bro what's your final combination in your ZERO right now? OPA627 in dac and LT1364 in amp? All opamp well burnt in?
QUOTE(kwekeugene @ Apr 7 2008, 10:41 AM)
Sure, where's your location?
I think if you want to put it in the amp section you would need (2 units).
I think if you want to put it in the amp section you would need (2 units).
Just give Steve some support on his opamp bulk
, I only use at DAC section, cuurently the Zero is paired with my NAD amp.
I'll decide which one to buy later on, need to do some research first. LME49720 doesn't sounds nice with Katie Melua and Leann Rimes vocals, so I decide to change them
Not really well burnt in yet but the LT1364 is really scary la. It is so hot you can't touch it for more that 2-3 seconds with your finger.
The LT1057 is the best, runs very cool.
The LT1057 is the best, runs very cool.
@kwekeugene
i suggest getting them chipset heatsinks like the ones from zalman or even coolermaster. should help dissipate the heat a little.
of course itll be better if u can figure out a way to blow a fan on the heatsinks as well
anyway.....
wooooohhhhoooooo!!!!.......... just received my last 2 units of opa627s....thanks mike!!! gonna install them now
Added on April 7, 2008, 4:06 pmall installed....
headamp section....
and finally.... THE ULTIMATE ZERO
i suggest getting them chipset heatsinks like the ones from zalman or even coolermaster. should help dissipate the heat a little.
of course itll be better if u can figure out a way to blow a fan on the heatsinks as well
anyway.....
wooooohhhhoooooo!!!!.......... just received my last 2 units of opa627s....thanks mike!!! gonna install them now
Added on April 7, 2008, 4:06 pmall installed....
headamp section....
and finally.... THE ULTIMATE ZERO
QUOTE(mADmAN @ Apr 7 2008, 03:24 PM)
@kwekeugene
i suggest getting them chipset heatsinks like the ones from zalman or even coolermaster. should help dissipate the heat a little.
of course itll be better if u can figure out a way to blow a fan on the heatsinks as well
anyway.....
wooooohhhhoooooo!!!!.......... just received my last 2 units of opa627s....thanks mike!!! gonna install them now
Added on April 7, 2008, 4:06 pmall installed....
headamp section....
and finally.... THE ULTIMATE ZERO
i suggest getting them chipset heatsinks like the ones from zalman or even coolermaster. should help dissipate the heat a little.
of course itll be better if u can figure out a way to blow a fan on the heatsinks as well
anyway.....
wooooohhhhoooooo!!!!.......... just received my last 2 units of opa627s....thanks mike!!! gonna install them now
Added on April 7, 2008, 4:06 pmall installed....
headamp section....
and finally.... THE ULTIMATE ZERO
after plug in all the 3 set OPA627 + BrownDog into Zero, Is it sound better then Yulong?
just only plug in mah...so cant really tell...
besides.. ive never heard the yulong nor even seen it in real life so i cant compare between the 2
besides.. ive never heard the yulong nor even seen it in real life so i cant compare between the 2
I guess yours will be super revealing. Haha You'll have a tough time looking for music which will sound perfect
You'll have a tough time looking for music which will sound perfect
Well they are Ibasso, Yulong, Zhaolu (new version) and other DAC to compare with but it boils down to costs and the flexibility of rolling. With other DAC, any mistake in the swapping and soldering will fry the chip. Zero is just plug and play and good play ground before one matures.
how I do the burn in, feed the ZERO with thousands of mp3 with the headphone connected .. is there other way?
how I do the burn in, feed the ZERO with thousands of mp3 with the headphone connected .. is there other way?
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