Hi,
I am not sure which opamp to change or would be suitable for the 2 Technics CD players.
Technics SL-P477A
Current
LM833M - comparator
BA4560FT - buffer amp
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Technics SL -PG440A
LM833M - differential
BA4560FT - L.P Filter
PDFs of the old op amps
www.micropik.com/.../ba4560.pdf
Thank you
Sam
Hi Sam,
I expect the most benefit will come from applying the high performance op amp after the converter in the signal chain. Then, focus on what follows it. Take a look at the OPA1602. It is a bipolar input audio op amp with very low noise and distortion. It is available in the MSOP package which I think may be used in the circuits. If not, it is available in the standard SO-8 as well.
Regards, Thomas
PA - Linear Applications Engineering
