-: Best audio OpAmps :- - Page 6

vacuphile · 10th July 2011, 11:59 PM

Quote:

Originally Posted by wim

Excuse the previous posting.

Of course it must be OPA2134 !

I use them in my present project and I find them excellent. Very low noise and distortion.

peteramp · 11th October 2011, 03:54 AM

I'm like DigitalJunkie. I like the TL072, plus the LF353, because they give more 'meat' on the musical bones than the more 'modern' replacements. The AD712 seems a good 'compromise' between old school and new.

noSmoking · 11th October 2011, 07:22 AM

Hi Peteramp!
I like to try new or old Op Amps too!
So I must ask where are you using tloxxxx amps and what type power supply. type caps ,and compensation,Did you hear these or Test them ? type amps and speakers,source? I am using a middle of the road(HD280Pro's)headphones to test op amps they don't color as much as my speakers and I set the spectrum flat before I listen and sound differences do show up,lol.
Not putting you on the spot here,ok? Just after better sound,lol.
Thanks!!!!!!!!!!

peteramp · 02:21 AM

Hi noSmoking,
I've used TL0XX's in things such as Audio Research SP-9, Marantz CD63 cdp, and they ALWAYS give an unfailingly sweet sound. One thing is for sure, it's NS (National Semiconductor) types that always sound best.TI (Texas Instruments), ST etc are mainly thinner and harder sounding. I have very revealing 4 way 'speakers (hand made), and changes like substituting op amps, wire, caps are easily discernible. I'm awaiting some 825's with so-called 'pass transistors', I'm not fussed if they will improve on what's already in, but I do like to try a variety of combo's, as if you don't, you will never know. Now, did anybody order a drink...is that with one ice cube or two, fancy or non fancy glass (tubegod, are you there)?

Bottoms up,
peteramp

noSmoking · 12th October 2011, 11:58 PM

Hi peteramp.
I haven't tried tlo but I have a bunch of tlo 71 and 72's that I will try,
I have a box that has 2 of most op amps in it. I have found some opamps sound better in different circuits,so I change out until I find the ones I like, I bought a dac and use the dips on it to test most opamps ,it gives a good indication of what the end result is, Less ice in that drink,more room for booze,lol.

peteramp · 13th October 2011, 12:18 AM

Hi noSmoking,
love your work (regarding the drink ). Don't forget those LF353's if you can get your hands on them! If I have anything interesting to post on those AD825's with mods., I'll let you know.

cheers,
peteramp

nigelwright7557 · 13th October 2011, 12:26 AM

The tl084 is a good quad op amp. I have had trouble with some op amps inverting the output on loud passages but the tl084 works fine.

aklz · 13th October 2011, 01:47 AM

Thoughts about:
MC33078
MC33178
LS204
LF442
Intented do make a onboard (2 x 9v battery)bassguitar preamp/eq .

12th October 2011, 02:16 AM	#54
peteramp diyAudio Member Join Date: Sep 2011 Location: Sydney	Hi noSmoking, I've used TL0XX's in things such as Audio Research SP-9, Marantz CD63 cdp, and they ALWAYS give an unfailingly sweet sound. One thing is for sure, it's NS (National Semiconductor) types that always sound best.TI (Texas Instruments), ST etc are mainly thinner and harder sounding. I have very revealing 4 way 'speakers (hand made), and changes like substituting op amps, wire, caps are easily discernible. I'm awaiting some 825's with so-called 'pass transistors', I'm not fussed if they will improve on what's already in, but I do like to try a variety of combo's, as if you don't, you will never know. Now, did anybody order a drink...is that with one ice cube or two, fancy or non fancy glass (tubegod, are you there)? Bottoms up, peteramp Last edited by peteramp; 12th October 2011 at 02:21 AM.

13th October 2011, 12:26 AM	#57
nigelwright7557 diyAudio Member Join Date: Apr 2008 Location: Carlisle, England	The tl084 is a good quad op amp. I have had trouble with some op amps inverting the output on loud passages but the tl084 works fine. __________________ http://www.murtonpikesystems.co.uk PCBCAD40 pcb design software.

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11th October 2011, 03:54 AM	#52
peteramp diyAudio Member Join Date: Sep 2011 Location: Sydney	I'm like DigitalJunkie. I like the TL072, plus the LF353, because they give more 'meat' on the musical bones than the more 'modern' replacements. The AD712 seems a good 'compromise' between old school and new.

11th October 2011, 07:22 AM	#53
noSmoking diyAudio Member Join Date: May 2010 Location: SanAntonio,Tx	Hi Peteramp! I like to try new or old Op Amps too! So I must ask where are you using tloxxxx amps and what type power supply. type caps ,and compensation,Did you hear these or Test them ? type amps and speakers,source? I am using a middle of the road(HD280Pro's)headphones to test op amps they don't color as much as my speakers and I set the spectrum flat before I listen and sound differences do show up,lol. Not putting you on the spot here,ok? Just after better sound,lol. Thanks!!!!!!!!!!

12th October 2011, 11:58 PM	#55
noSmoking diyAudio Member Join Date: May 2010 Location: SanAntonio,Tx	Hi peteramp. I haven't tried tlo but I have a bunch of tlo 71 and 72's that I will try, I have a box that has 2 of most op amps in it. I have found some opamps sound better in different circuits,so I change out until I find the ones I like, I bought a dac and use the dips on it to test most opamps ,it gives a good indication of what the end result is, Less ice in that drink,more room for booze,lol.

13th October 2011, 12:18 AM	#56
peteramp diyAudio Member Join Date: Sep 2011 Location: Sydney	Hi noSmoking, love your work (regarding the drink ). Don't forget those LF353's if you can get your hands on them! If I have anything interesting to post on those AD825's with mods., I'll let you know. cheers, peteramp

13th October 2011, 01:47 AM	#58
aklz diyAudio Member Join Date: Sep 2006	Thoughts about: MC33078 MC33178 LS204 LF442 Intented do make a onboard (2 x 9v battery)bassguitar preamp/eq .

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