[nimrod]

Is it OK to use the OPA2132PA in positions U1 and U2?

[Phoca]

Hmmm, no answers to this.  I was wondering the same thing today and saw this, didn't want to start a whole new thread.  So my question is re:2132, specs seem to indicate this would help with battery life yet be quite similar to the 2134, at least relative to RIAA.  But then RIAA is not something I really understand.

So would this be a decent sub in the U1 and U2 spots to keep the RIAA intact yet extend battery life without compromising the sound (and/or requiring other component changes)?

Alternatively, I seem to recall discussion of the 2137 to extend battery life, and would that be a better choice for U1 and U2 relative to battery life AND sound quality?

Thanks for any thoughts.

[poty]

You can use the OPA2132PA at this positions without problems, but the OPA has slightly poorer performance on low-frequencies. I don't think it is a problem, because there is RIAA, which reduces signal level at this point.

[Phoca]

Thanks, Poty.  That's helpful.

[hagtech]

Yes, 2132 is fine.

jh