My main Zero purchase objective solely acted as DAC for my two old DVDP. but from the MadMan comments early, there isn't much sound improvement so I rather stay on to the original stock for the time being. Anyway can anyone guide or show me on the LM49720 installation.

look at the LM49720. notice that 1 side has a notch or a circle on it?

next remove the opamp u wanna replace.... look at the socket... notice the socket has a notch on it as well??

make sure the notch/ circle on the opamp matches the socket. plug it in and ur done

Hi MadMan, I'm electronic illiterate old guy, can shoot some picture for me here, so that I can start DIY once the Zero burnt in enough. I'm only interested on DAC section and I seldom listen music on my PC, hence headAmp is not important for me. current stock, bass a bit weak and vocal a bit soft. wonder how much improvement with the LM49720 replacement.

haven't try my dac yet... still haven't buy the power plug converter...
since this thing is from china, do i have to worried bout the volt... it can be plug directly to malaysian 220~240v switch right?

Finally i got the internet connection and see how you guys' unit performing! Currently surfing at CC while waiting for GF to finish facial

utellme: Sorry for unable to provide pictures about how to sweep opamp correctly cos of no internect connect at my staying place until I back to my home Hope that any kind soul here able to provide you the desired picture!

I think you guys should let the stock opamp burn in for at least 100 hours I'm planning to get the LT1364 opamp directly from LT head office, the sample unit is too darn hard to get, estimate cost should be RM20 each, should be quite worth the money. Wait till bro kwekeugene review his unit with LT1364, see how well it sounds

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Added on March 31, 2008, 3:11 pmSure, can plug straight without any hassle, u just cant plug those 110V directly

This post has been edited by GodLuvSxS: Mar 31 2008, 03:11 PM

No worry, just use plug in. or u can use the normal computer power cable .

Finally got my Zero today

Optical out > Zero > Grado SR225

Just plugged in it, what I immediately noticed is the widened and more defined soundstage. In some songs, the highs were noticeably tamer, making it less fatiguing to listen to. The expanded soundstage makes the mids more prominent and clearer. Or rather, in layman terms, less congested. No hiss or background noise up till the 12 o'clock volume level, going all the way has some slight hiss. Certainly won't be noticeable if using efficient headphones since at 9 o'clock, it's already quite loud!

All of this is from a fresh unit, will do a further review once I get more hours in and start opamp rolling....

Note : the unit gets rather hot, probably 50-60 degrees. you guys having the same problem?

Okie, guys! Gotta go now, been surfing for 4 hours in CC and finally GF is ready to be released from facial shop Any question please contact me at 012-5690433 since I got no internet connection, thanks Enjoy your ZERO

Wah.. GodLuvSxS if your getting the LT1364 remember to let me know.. interested in getting it to try too...

http://www.head-fi.org/forums/f46/prelude-...617/index3.html
http://www.head-fi.org/forums/f46/just-not...general-306913/
Somes prefer LT1361 over LT1469 and LT1364. But again, it's very subjective.

Currently no money for Zero. But I do have 2 brand new LT1361 lying down somewhere inside my room.

p/s: It's prelude btw.

This post has been edited by BSOD: Mar 31 2008, 09:39 PM

Hmm are u implying that your LT1361's are for sale??

The more I listen to it, the more i feel engaged.

just dig out those audiophile CD and replay those songs, I felt like being thrown into it. Can feel more warm and depth, and the sweetness of mid and highs.

wait another 24 hours.

Form the link, it seems that people tend to hv different opinion of the opamp swapping and there is no right or wrong, as it's very much matter of individual musical preference. but I don't mind to try out LT1364 just for RM20 if GodLuvSXS can get that for us.

opamps rolling is a preference, a pure preference, there will not be the best on any combinations
try to get some options, and try to search thru which opamps u love
it is just a matters u need a mid strong bass, low deep bass, wide soundstage, narrow aggressive..and etc....

Well, actually I'm pondering whether to get LT1361 or LT1364, the LT1469 should be ruled out cos it sounds quite bright compare to those two, maybe I pay bro BSOD to ship over one of this LT1361 to bro Kwekeugene do a A-B review since he got the LT1364, maybe he would get poisoned Last time I seen one review between OPA2111 and LT1364, the LT1364 comes out as a more all round performer, I think it's quality should be around OPA627 lvl

EDIT:

- Reviewed with Sennheiser headphone, I guess I'm more on LT1364 cos I love balance sound

Anyway, a notice to all interested audiophile: THE SECOND BULK KICKS START!!! Please proceed to counter get yours!

This post has been edited by GodLuvSxS: Apr 2 2008, 11:22 AM

Zero burn in currently around 30 hours. Might start rolling earlier

Here's the op-amps I have
LT1361
LT1364
LT1057
LT1469
OPA627

From the link,

DAC / Amp :

LT1364 + LT1469 DAC=great, phone=great

LT1364 + LT1361 DAC=great, phone=great

LT1364 + LT1057 DAC=great, phone=good

LT1469 + LT1364 DAC=good, phone =good

LT1469 + LT1361 DAC=great, phone=great

one question, where u guys buy opamp from?
hmmm?

wrong post pulak... was confused with the bulk thread.

This post has been edited by CooBra: Apr 3 2008, 03:32 PM

WHEEEEEEEEEE.....

already paid mike for the OPA627s....

now just waiting for them to arrive only... then my ZERO will have OP627s all around = total 3 complete units...