RSP-1066 vs. RSX-1056 preamp section

[Architect7]

Hello Everyone. I have a RSP-1066 and a RSX-1056. I would like to know if anyone knows if either one of these units has a higher quality preamp section. Output components, etc. Thanks!

[Architect7]

Any ideas out there? Let's throw the RSP-1068 into the mix as well. Input/output stage differences? Op-amp types?

Thanks!

[chanlon]

I can't comment on the individual components. However, I found the 1068 was a significant step up in preamp quality from the 1066. And, found the 1069 to be a little better than the 1068.

I could hear no difference between the 1570 and 1069.

[wkhanna]

For 2-ch music, the 1066 is definitely at the bottom of the list. It also had LF limitations in the surround mode that were fixed in the later models.