It wouldn't be my first choice, but its a lot better than what you have now. You'll hear a significant improvement in sound quality. If you were to take the P5 and compare it to what was current when your Acurus preamp was made, it would be the equivalent of a Krell or Levinson. Possibly better in some respects.
Experience with Parasound P5?
I I have been looking at a pre upgrade for my main system of AcurusR11, McIntosh MC250 with upgrades/ATI 1502, Sony Sa5400cdp, Ohm Walsh 2-100S3, Squeezebox. I have never had a more modern pre with these amps and I have heard consistently that the pre is a weakness. I have a chance to get a NIB Parasound P5 for a really good price from a dealer on the Mainland so no chance to test it. Wanted to see if others have heard or bought this unit and their thoughts as to quality, impact or if anyone has used it it's a similar amp.