BURSON SINGLE AUDIO OPAMPS ! ONE OF THE GREATEST !

vmed_cha_gr · 21st February 2012, 08:16 AM

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.

djk · 21st February 2012, 09:34 AM

$72 each seems a bit much for what it is.

JojoD818 · 21st February 2012, 09:40 AM

Also had the pleasure of using those discrete opamps, excellent sonics but the turn off is their a bit pricey.

sgrossklass · 21st February 2012, 10:11 AM

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.

theAnonymous1 · 21st February 2012, 11:05 AM

No thanks. Everyone has their favorite, but at $2.50 the LME49990 can't be beat IMO.

UV101 · 11:12 AM

Quote:

Originally Posted by sgrossklass

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!

vmed_cha_gr · 21st February 2012, 11:13 AM

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.

Boscoe · 21st February 2012, 11:35 AM

How does changing out an op-amp give control over sound?

UV101 · 21st February 2012, 11:45 AM

Quote:

Originally Posted by Boscoe

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.

vmed_cha_gr · 12:09 PM

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

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.

21st February 2012, 09:34 AM	#2
djk diyAudio Member Join Date: Feb 2001 Location: USA	$72 each seems a bit much for what it is. __________________ Candidates for the Darwin Award should not read this author.

21st February 2012, 11:05 AM	#5
theAnonymous1 diyAudio Member Join Date: Feb 2004 Location: Anonymityville	No thanks. Everyone has their favorite, but at $2.50 the LME49990 can't be beat IMO. __________________ "If you don't like funerals don't kick sand in Ninja's face." - Ninja

21st February 2012, 11:35 AM	#8
Boscoe diyAudio Member Join Date: Feb 2010 Location: England	How does changing out an op-amp give control over sound? __________________ I thought about it once, but then thought again.

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21st February 2012, 09:40 AM	#3
JojoD818 diyAudio Moderator Join Date: Mar 2003 Location: searching...	Also had the pleasure of using those discrete opamps, excellent sonics but the turn off is their a bit pricey.

21st February 2012, 10:11 AM	#4
sgrossklass diyAudio Member Join Date: Nov 2004 Location: Germany	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.

21st February 2012, 11:13 AM	#7
vmed_cha_gr diyAudio Member Join Date: Jun 2009	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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