Where are you trying to go? I have experience with the 8008bb. The Aragon 8008bb is a very nice amp, but it is a tinch on the warm side (a little bit slower than other solid state amps). The older Brystons have very fast attack and are the opposite of warm (it seems that the new Bryston b3 amps are warmer/laid back). The older Brystons may work with the AR preamp and others definitely like Bryston, but it may not be as engaging as the Parasound or Pass Labs (I’ve heard Bryston amps and they are fast/crisp/clear, but a little on the clinical/sterile side). If feedback on the newer b3 Brystons being warm is true (which I think it is, since the Bryston SP3 processor is definitely way too warm and laid back for me -- Bryston may be changing it’s sonic signature), then the Bryston may be even more laid back than the 8008bb.
If it were me, I’d try something like a Parasound A21 first, unless you had the $3500+ to go for a used ".5" or ".8" Pass Labs amp.