BURSON SINGLE AUDIO OPAMPS ! ONE OF THE GREATEST ! - diyAudio
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Old 21st February 2012, 08:16 AM   #1
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Default BURSON SINGLE AUDIO OPAMPS ! ONE OF THE GREATEST !

I modified my second Audiolab 8000p using Burson Audio opamps as a direct replacement over the Burr Brown opa134 it had.
I recommend them 100%. Results are outstanding, it is a killer amp now. Total control in every sound aspect.
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Old 21st February 2012, 09:34 AM   #2
djk is offline djk
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$72 each seems a bit much for what it is.
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Old 21st February 2012, 09:40 AM   #3
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Also had the pleasure of using those discrete opamps, excellent sonics but the turn off is their a bit pricey.
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Old 21st February 2012, 10:11 AM   #4
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Are these the ones that Samuel Groner tested (and found identical to audio-gd OPA-Earth)? Those didn't measure particularly well, and "downgrade" would seem to be a more fitting term.
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Old 21st February 2012, 11:05 AM   #5
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No thanks. Everyone has their favorite, but at $2.50 the LME49990 can't be beat IMO.
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Old 21st February 2012, 11:09 AM   #6
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Quote:
Originally Posted by sgrossklass View Post
Are these the ones that Samuel Groner tested (and found identical to audio-gd OPA-Earth)? Those didn't measure particularly well, and "downgrade" would seem to be a more fitting term.
Have you actually listened to them?

I have several and they are very good, definately not a downgrade.

I also use LME49710HA (and 20HA) and these are better VFM than the discrete if not quite as good. The NA versions are exceptional VFM!
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Last edited by UV101; 21st February 2012 at 11:12 AM.
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Old 21st February 2012, 11:13 AM   #7
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I think the price is ok. It is a little bit higher than Burr Brown OPA627 but they come matched & with a lifetime warranty ( all you need to do is post your project to their email address). It took me 30 minutes to solder them . Differences are noticeable immediately.
I have two power amps which are exactly the same so the comparison was accurate.
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Old 21st February 2012, 11:35 AM   #8
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How does changing out an op-amp give control over sound?
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Old 21st February 2012, 11:45 AM   #9
UV101 is offline UV101  England
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Quote:
Originally Posted by Boscoe View Post
How does changing out an op-amp give control over sound?
Are you sure you want to be asking that?

Its a signal amplifier in the audio path. Dependant on design, it could be a unity gain buffer, an amplifier or form part of a filter circuit. Either way the audio passes right through it.
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Old 21st February 2012, 11:48 AM   #10
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It is quite common to spread rumours that he found them identical to audio-gd OPA-Earth.

What i'm trying to say is that : In 2 identical power amps, one has the opa627 installed & the other has Burson inside. The one with the Burson outperformed the one with the well known 627 (which is still a good one).
You have to do it yourself in order to make conclusions.
I've done it & i recommend it to you .


Quote:
Originally Posted by sgrossklass View Post
Are these the ones that Samuel Groner tested (and found identical to audio-gd OPA-Earth)? Those didn't measure particularly well, and "downgrade" would seem to be a more fitting term.

Last edited by vmed_cha_gr; 21st February 2012 at 12:09 PM.
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