Improvements from av preamp to 2 channel preamp?

Hello audiophiles, I would like your opinions on the improvements that would be had from changing from an arcam av8 ht/2channel preamp to a dedicated preamp such as the aloia pst 11.01. I already have an aloia st15.01 amp. My speakers are stereophile class "a" rated piega c-8 hybrid ribbon speakers. My passion is 2 channel music, mainly acoustic. I have a dedicated room with dim. of appx 14.5x21.5x9'. Also 3 dedicated 20 amp circuits. I do watch a movie about once a week. Was thinking about switching the interconnects depending on which preamp I was using. My source is the hram level 2 modified denon 3810. Your thoughts are greatly appreciated.