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

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
This post has been edited by GodLuvSxS: Apr 5 2008, 12:11 AM