Topping Pre90 Switching op amps?

@yyzsantabarbara 

I had volume issues with my McIntosh MC152 until I changed to the lower input voltage of the RCAs. I left the outputs on XLR and it worked fine. My problem is that it seems to render roughly half of my recordings worse than my regular preamp, a Hegel P30.

If you want the sound of the pre90 without the hassle, then the Benchmark LA4 is the best bet.

If you want the sound of the pre90 without the hassle, then the Benchmark LA4 is the best bet.

True but the price differential was unacceptable.  (I needed 3, now 4.)

Nota bene:  The OP was asking about swapping op-amps in the Pre90, not amps to connect to the Pre90.

"Nota bene: The OP was asking about swapping op-amps in the Pre90, not amps to connect to the Pre90."

Thanks kr4. For a second there, I thought that I was losing it, and the funny thing is that the OP didn’t correct them.

@roxy54 

Yes. It was a digression, but interesting nonetheless. My question is on op amps, not amps.