[peresmeshnik]

...considering a second NuPrime STA-9 power amp (in order to bi-amp my Wharfdale speakers). Hoping to learn more about this and the experience(s) of any other AudioCircle members who might wish to respond.

[FullRangeMan]

Welcome Peresmeshnik

[ArthurDent]

Greetings & Welcome to AC peresmeshnik   

[FullRangeMan]

I will move it to the NuPrime Circle where the Nu members will help you.

[peresmeshnik]

Thanks very much, FRM.

[Phil A]

Welcome!

[John Casler]

...considering a second NuPrime STA-9 power amp (in order to bi-amp my Wharfdale speakers). Hoping to learn more about this and the experience(s) of any other AudioCircle members who might wish to respond.

Yes, Welcome 

I might suggest you consider using the STA-9 in "bridged" mode instead of biamping.

I posted this in another of your threads.