The Simaudio P-8 is supposed to be an extraordinary pre-amp. I have the P-7 and the P-8's supposed to be a pretty notable step up, according to Simaudio.
I pair my P-7 with a W-8, also from Simaudio as more than one review mentioned that the best synergy with these pieces from Sim lies with other Sim pieces. They are fantastic together IMHO!
This is not to say these Simaudio pieces don't work with other pieces but they reportedly sound best paired together. I would think it's very important to be able to try the P-8 with your Krell amps to make sure there's good synergy there and you get the sound you like.
Does Krell not also have good pre-amps worth considering?
I pair my P-7 with a W-8, also from Simaudio as more than one review mentioned that the best synergy with these pieces from Sim lies with other Sim pieces. They are fantastic together IMHO!
This is not to say these Simaudio pieces don't work with other pieces but they reportedly sound best paired together. I would think it's very important to be able to try the P-8 with your Krell amps to make sure there's good synergy there and you get the sound you like.
Does Krell not also have good pre-amps worth considering?