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xin supermacro opamps question

post #1 of 7
11/12/09 at 2:45pm
Thread Starter 
Hi, I found this old thread and am very interested in opamps and the supermacro3

http://www.head-fi.org/forums/f5/sup...2/#post6152748
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post #2 of 7
11/13/09 at 1:50pm
Thread Starter 

Bump

Bump to the top
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post #3 of 7
11/13/09 at 3:14pm
The SM 3 is an excellent amp. I like the 5534 biased to class A followed by a couple of BUF634's. I prefer that amp to the later ones. I converted one to an amp only so it required a preamp and even though I already have a SM3 I think I will convert it back. I also have with 5002 buffers, that sounds excellent. I always prefered the HA5002 buffer by just a little to the 634.

I also never really used any of the switches on any of the Xin amps but they do come in handy.
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post #4 of 7
11/13/09 at 11:40pm
Thread Starter 

Thanks...

Quote:
Originally Posted by jamato8 View Post
The SM 3 is an excellent amp. I like the 5534 biased to class A followed by a couple of BUF634's. I prefer that amp to the later ones. I converted one to an amp only so it required a preamp and even though I already have a SM3 I think I will convert it back. I also have with 5002 buffers, that sounds excellent. I always prefered the HA5002 buffer by just a little to the 634.

I also never really used any of the switches on any of the Xin amps but they do come in handy.
Thanks Jam, as always I may have to pick your brain a bit more on this!
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post #5 of 7
11/14/09 at 12:14am
One of the popular opamps for the SM3 was the OPA2227, it was quite warm and tubelike. I also very much liked the HA5002 as a buffer and had it in all my SM amps. It has a non-standard pin basing, so is not real easy to adapt to a DIP socket. The 5534 is one of 3 opamps that can be output bypassed.
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post #6 of 7
11/14/09 at 2:20am
Xin made the B model that took the 5002 but not many were made. I told him I preferred the 5002 and I think I have two models with the 5002.
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post #7 of 7
11/29/09 at 5:11pm
I tried to use opa627 on Supermacro-3. However opa627 can not be used.
Why can not opa627 be used?
Let me know the reason why opa627 can not move.
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