If you are running Monitor 9's, I would not put $3000 in a receiver. I believe you would get much better sound from upgraded speakers and less $ in the receiver. I don't think you'll hear sufficient difference in the Nak AV10 and Marantz 8000 class vs the big super-receivers like the 5800, SR14/18, or B&K 305/307. That extra $1500 would get you to Studio Ref 100's, if you're partial to Paradigm line, with lots of change, or sell the 9's and head upchain to any number of model/brands. I think this gives you very acceptable levels of HT with improved 2-ch. Look for a receiver with direct/bypass mode and pre-outs, and you can retain the same 750>150 path you have now for 2-ch. I find very little difference in the HT performance from mid-level to high-level receivers, and for the rest of your setup is overkill IMO. Of course, YMMV and you're paying the gas bill ;-)
Is there a Musical HT Receiver....?
I currently use a Luminous Audio Axiom volume knob and an Acurus A150 with an Adcom GCD 750 but I now want to include HT in my setup. Is there a receiver that will sound as musical as the Acurus but provide DTS and pro logic? I'm using Paradigm Monitor 9's for the fronts. I would appreciate any advice for brands or configurations to the setup.