QUOTE(thedoctor @ Jan 26 2006, 01:05 AM)
the cable connect to the headphone and source losince the design can jz plug in with mini jack
Headphones PhilipS HP890 and SHP895 and SBC HP1000 clubz^^, come and share ur love story of this can
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Jan 26 2006, 01:21 AM
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Senior Member
3,980 posts Joined: Oct 2005 From: HeAv3N |
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Jan 26 2006, 02:15 AM
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Elite
1,040 posts Joined: May 2005 From: north + south |
QUOTE(yeah_guyz @ Jan 26 2006, 01:21 AM) a 2.5mm minijack, with a unique locking mechanism. the other end is terminated with the normal 3.5mm minijack.that 2.5mm minijack will be hard to DIY since it needs a unique lock. |
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Jan 26 2006, 11:23 AM
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Senior Member
836 posts Joined: Jan 2003 From: Wichita, Kansas |
QUOTE(Tachikoma @ Jan 25 2006, 11:34 PM) Lol, the PA2V2 isn't really the definitive best of headphone amps >_> Try getting a govibe V4 with the AD8397 opamp or something, whatever amp head-fi is hyping now Hahaha... I'm gonna bypass thaet whole process and get a AKG K701 and ask my friend to DIY me an M3 amp. Still thinking about which op-amps to pick tho. |
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Jan 26 2006, 11:47 AM
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Senior Member
3,980 posts Joined: Oct 2005 From: HeAv3N |
QUOTE(thedoctor @ Jan 26 2006, 02:15 AM) a 2.5mm minijack, with a unique locking mechanism. the other end is terminated with the normal 3.5mm minijack. em if we use bek the 2.5mm minijack, dunno can onot lehthat 2.5mm minijack will be hard to DIY since it needs a unique lock. after changing the cable, is it really achieve a very good quality sound? hw much it cost? |
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Jan 26 2006, 05:50 PM
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Elite
1,040 posts Joined: May 2005 From: north + south |
QUOTE(Shogun @ Jan 26 2006, 11:23 AM) Hahaha... I'm gonna bypass thaet whole process and get a AKG K701 and ask my friend to DIY me an M3 amp. Still thinking about which op-amps to pick tho. the AD8065 got my vote. or you could try OPA627(pricey) or the OPA227 (cheap). the AD8065 has the best price/performance ratio IMO.another thing, why not wait for the next gathering and see if a tube amp could scale higher than a discreet solid state amp. or how well a full OTL tube amp compares to a hybrid implementation (SOHA). i bet the next gathering will have more contenders than the previous. QUOTE(yeah_guyz @ Jan 26 2006, 11:47 AM) em if we use bek the 2.5mm minijack, dunno can onot leh i have no idea. but the cable is already using a Linear Oxygen Free Copper, good enough if you ask me. unless you replace it with silver based cables, then it's a waste of time/money.after changing the cable, is it really achieve a very good quality sound? hw much it cost? |
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Jan 26 2006, 09:19 PM
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Senior Member
3,593 posts Joined: Feb 2005 From: ***Penang*** |
SHP-895 owner here
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Jan 26 2006, 09:41 PM
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Elite
2,396 posts Joined: Jan 2003 From: Pandan Perdana, Cheras, KL |
SHP-840 owner here, can join ahh? This is also the XXL Clarity what...
BTW, i'm looking forward to build a Headphone amp the size of the 5.25" bay on a PC, utilising the PSU, with the aid of a separate DC/DC converter circuitry to avoid noise and thingy, anybody interested in the idea and have do such a thing before? No resources on such gi-normous Headphone Amp Project can be found, except for the trusty CMOY... perhaps just dump a small CMOY into a big casing? |
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Jan 26 2006, 10:10 PM
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Senior Member
3,980 posts Joined: Oct 2005 From: HeAv3N |
QUOTE(LittleLinnet @ Jan 26 2006, 09:19 PM) QUOTE(Kagaya @ Jan 26 2006, 09:41 PM) SHP-840 owner here, can join ahh? This is also the XXL Clarity what... welcomeBTW, i'm looking forward to build a Headphone amp the size of the 5.25" bay on a PC, utilising the PSU, with the aid of a separate DC/DC converter circuitry to avoid noise and thingy, anybody interested in the idea and have do such a thing before? No resources on such gi-normous Headphone Amp Project can be found, except for the trusty CMOY... perhaps just dump a small CMOY into a big casing? |
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Jan 27 2006, 12:14 AM
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Elite
1,040 posts Joined: May 2005 From: north + south |
QUOTE(Kagaya @ Jan 26 2006, 09:41 PM) SHP-840 owner here, can join ahh? This is also the XXL Clarity what... though i do think that this should be asked in the DIY amp thread since i've been warned by the thread starter once for not sticking to the topic and leading the discussion astray, i do think i should in someway reply since it's been asked.BTW, i'm looking forward to build a Headphone amp the size of the 5.25" bay on a PC, utilising the PSU, with the aid of a separate DC/DC converter circuitry to avoid noise and thingy, anybody interested in the idea and have do such a thing before? No resources on such gi-normous Headphone Amp Project can be found, except for the trusty CMOY... perhaps just dump a small CMOY into a big casing? PC uses a switching power supply which is in a way bad to audio usage since the power supplied isn't constant. you could however get away with a large capacitance caps and use a CRC filter to smooth it out. but still, switching power supply isn't always preffered especially in headphone amp where power supply quality has a large effect on the sound quality. most people tend to avoid using switching power supply especially from the PC since that's not the best place to get a good quality power. and you might wanna take into consideration the RF interference from the many components in the case, which could possibly get into the audio path. but if you're still interested to try it out, a PIMETA or an M3 in an aluminium case with proper grounding might help in reducing the interference. still, i do think that you should at least filter about 5V from the 12V rail to get acceptable quality power, which gives you something more or less 7V to run the amp from. you could add a low dropout voltage regulator after that to stabilize the power. but with 6V-7V, you'd have to cancel out high voltage Opamps, mainly the OPA627, AD8066, AD8065, AD843, AD8610 and AD8620 since those requires higher voltage to work well. that will leave you with the normal quality/stock choices like the OPA2227, OPA2134, OPA2132, AD823 and something like the TL072, NE5532, NJM4556, NJM4558 and the rest of the jellybean chips. oh, i forgot.. the M3 tend to get hot after a while so that might also be taken into your consideration. the discreet MOSFET output requires heatsinking since those are biased into Class A with a somewhat high current. a PIMETA however doesn't produce that much heat and might be better in a closed casing. a Gilmore Dynalo also produces considerable heat so you might wanna think about it also. all and all, you could pick from the range of choices that i've mentioned above. a PIMETA, an M3 or a Dynalo. and of course the CMOY (but from the looks of it, you're trying to avoid the CMOY). the M3 might get a bit packed in the 5.25" case. a Dynalo could be miniturized pretty small, but produces heat. so my suggestion is the PIMETA. the PIMETA is quite easy to build, not that awfully complex compared to the CMOY, and easily sourceable for parts. you could refer here for schematics. ^ but i do suggest that you start off slowly, trying the CMOY first before moving on to better designs. that should give you the experience which will come in handy. |
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Jan 27 2006, 01:05 AM
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Elite
2,396 posts Joined: Jan 2003 From: Pandan Perdana, Cheras, KL |
QUOTE(thedoctor @ Jan 27 2006, 12:14 AM) though i do think that this should be asked in the DIY amp thread since i've been warned by the thread starter once for not sticking to the topic and leading the discussion astray, i do think i should in someway reply since it's been asked. Thanks, sifu... PC uses a switching power supply which is in a way bad to audio usage since the power supplied isn't constant. you could however get away with a large capacitance caps and use a CRC filter to smooth it out. but still, switching power supply isn't always preffered especially in headphone amp where power supply quality has a large effect on the sound quality. most people tend to avoid using switching power supply especially from the PC since that's not the best place to get a good quality power. and you might wanna take into consideration the RF interference from the many components in the case, which could possibly get into the audio path. but if you're still interested to try it out, a PIMETA or an M3 in an aluminium case with proper grounding might help in reducing the interference. still, i do think that you should at least filter about 5V from the 12V rail to get acceptable quality power, which gives you something more or less 7V to run the amp from. you could add a low dropout voltage regulator after that to stabilize the power. but with 6V-7V, you'd have to cancel out high voltage Opamps, mainly the OPA627, AD8066, AD8065, AD843, AD8610 and AD8620 since those requires higher voltage to work well. that will leave you with the normal quality/stock choices like the OPA2227, OPA2134, OPA2132, AD823 and something like the TL072, NE5532, NJM4556, NJM4558 and the rest of the jellybean chips. oh, i forgot.. the M3 tend to get hot after a while so that might also be taken into your consideration. the discreet MOSFET output requires heatsinking since those are biased into Class A with a somewhat high current. a PIMETA however doesn't produce that much heat and might be better in a closed casing. a Gilmore Dynalo also produces considerable heat so you might wanna think about it also. all and all, you could pick from the range of choices that i've mentioned above. a PIMETA, an M3 or a Dynalo. and of course the CMOY (but from the looks of it, you're trying to avoid the CMOY). the M3 might get a bit packed in the 5.25" case. a Dynalo could be miniturized pretty small, but produces heat. so my suggestion is the PIMETA. the PIMETA is quite easy to build, not that awfully complex compared to the CMOY, and easily sourceable for parts. you could refer here for schematics. ^ but i do suggest that you start off slowly, trying the CMOY first before moving on to better designs. that should give you the experience which will come in handy. When it comes to sourceable, probably it is accesible at the usual lair of electronics component like Jalan Pasar ehh? If this amp works, perhaps the next big thing is the Philips HP1000 !!! Initially, i planned to buy this headphone only to realize that my soundcard will not be able to drive it properly. A saying that goes, if your headphone cost your 2 bucks, spend 5 bucks on the amp to make it sounds like 20 bucks... |
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Jan 27 2006, 01:12 AM
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Junior Member
260 posts Joined: Sep 2004 |
I just got my SHP-895 last week and I love it I love it I love it I love it I love it!!
My roommate loves it, my neighbour loves it, my cousin loves it, my brother loves it, my cat loves it ! |
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Jan 27 2006, 01:16 AM
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Junior Member
260 posts Joined: Sep 2004 |
Oh ya.. add me to the list also.
- ColeXE |
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Jan 27 2006, 01:23 AM
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Elite
1,040 posts Joined: May 2005 From: north + south |
QUOTE(Kagaya @ Jan 27 2006, 01:05 AM) Thanks, sifu... the components is a lot harder to source for. take a look in the DIY Amp thread and you'll see that most people have a problem sourcing for one or more of the required parts. even necessary parts for the CMOY is hard to source for.When it comes to sourceable, probably it is accesible at the usual lair of electronics component like Jalan Pasar ehh? If this amp works, perhaps the next big thing is the Philips HP1000 !!! Initially, i planned to buy this headphone only to realize that my soundcard will not be able to drive it properly. A saying that goes, if your headphone cost your 2 bucks, spend 5 bucks on the amp to make it sounds like 20 bucks... some hard to acquire parts includes the high quality power caps, a high quality polypropylene decoupling cap, the gold plated IC socket, the Opamp chip and a high quality dual track potentiometer for volume control. also, the 1% metal film resistors are hard to come by. there's shops mentioned in the DIY Amp thread, which is Nixie Electronics and some other shops that you could source parts for. try reading the many pages in the thread to get yourself started. |
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Jan 27 2006, 01:30 AM
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Senior Member
2,532 posts Joined: Jan 2003 From: Petaling Jaya |
Out of curiosity, what soundcards are you guys on?
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Jan 27 2006, 01:36 AM
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Elite
1,040 posts Joined: May 2005 From: north + south |
QUOTE(kernel @ Jan 27 2006, 01:30 AM) some on external DACs, some on EMU0404, some on EMU1212, some on Prodigy, some on Chaintech AV710, and some on external soundcards. heck, some even use built-in soundcards and SoundBlasters.i don't recall anyone still using ESI Juli@, or am i wrong? |
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Jan 27 2006, 01:38 AM
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Elite
1,040 posts Joined: May 2005 From: north + south |
^ there's even EMU1616 in here. and if i recall correctly, there's EMU1820 also.
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Jan 27 2006, 01:49 AM
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Junior Member
309 posts Joined: Jan 2003 From: Cyberjaya |
count me in !!
SHP-895 owner any recommendation of amp to pair with this headphone? |
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Jan 27 2006, 01:59 AM
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Elite
1,040 posts Joined: May 2005 From: north + south |
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Jan 27 2006, 02:06 AM
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Junior Member
309 posts Joined: Jan 2003 From: Cyberjaya |
yeah..i have CMOY in my mind. oh btw, i've looked at ur thread selling DIY CMOY there..but im looking for one with adapter n knob (already booked)
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Jan 27 2006, 02:17 AM
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Elite
1,040 posts Joined: May 2005 From: north + south |
QUOTE(deadgriever @ Jan 27 2006, 02:06 AM) yeah..i have CMOY in my mind. oh btw, i've looked at ur thread selling DIY CMOY there..but im looking for one with adapter n knob (already booked) ah, about that. i could build you another one with a knob and an adapter. those are custom made, so feel free to ask for custom specs. both of the buyers did ask for a somewhat major modification to the amp, and i fulfilled their request. |
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