Low noise drop-in replacement for TL072CP?

kkatarn327 · 18th January 2011, 08:37 PM

I have an SWR bass combo and the EQ section is unusually noisy. Long story short, before I started messing with capacitors and tore into the power section I figured a good and effective place to start would be to replace the op amps (and being a lower end amp, I figured op amps would be the first place the manufacturer would cut quality to save costs).

The op amps in the amp are all TL072CP and I am looking for a low noise drop-in replacement. Any suggestions?

Thanks!

tomchr · 18th January 2011, 08:55 PM

The TL072 is a JFET input op-amp. I would suspect something like an LME49720 would be a reasonable replacement. It's certainly many orders of magnitude higher performance.

~Tom

18th January 2011, 08:37 PM	#1
kkatarn327 diyAudio Member Join Date: Jan 2011	Low noise drop-in replacement for TL072CP? I have an SWR bass combo and the EQ section is unusually noisy. Long story short, before I started messing with capacitors and tore into the power section I figured a good and effective place to start would be to replace the op amps (and being a lower end amp, I figured op amps would be the first place the manufacturer would cut quality to save costs). The op amps in the amp are all TL072CP and I am looking for a low noise drop-in replacement. Any suggestions? Thanks!

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18th January 2011, 08:55 PM	#2
tomchr diyAudio Member Join Date: Feb 2009 Location: Greater Seattle Area	The TL072 is a JFET input op-amp. I would suspect something like an LME49720 would be a reasonable replacement. It's certainly many orders of magnitude higher performance. ~Tom