Go to the source, no one knows more. I would call or email Pass Labs and discuss with them. There's a guy that just does the preamp design and guessing you can dialog with him. I believe it is Wayne Colburn. Let them know exactly what you are trying to accomplish, what equipment you have and your room size. When it is good, it is really, really good. I I don't think they will just try to up-sell and you can tell if that is their goal pretty quickly. Sometimes creators are just geeking out on their own thoughts and circuitry but ask pointed questions about "sound quality". Engineers can be fun. You can also ask about other speaker suggestions and things.
Pass Labs XP32 or XP22?
I am considering buying Pass Labs, specifically the XA60.8 monoblocks. I am hoping that someone familiar with the preams could advise me. XP22 or XP32?
Thank you