ok, i've been saving for years for a decent multi channel amp. I have an older Marantz 5600 (90x7) and need more power and well everything a separate amp can provide.
I don't know alot about amps and their specs make me dizzy. Since i cannot afford these amps new...i must buy online used. Anyone have input on these.

I watch mostly movies and some music.

my system in a 22x15x8 HT room in basement (unfinished)
Revel F30 (6ohm - 89 sen) full 3 way fronts
Revel M20 (6ohm - 90 sens) center
4 Inifinity Primus 150 (8 ohms 93 sens)

here is my short list (used )..i may be able to go 2k on my budget
Lexicon LX-7 (200x7)
Lexicon GX-7 (125x7)
Marantz MM803 (160x7)
Sunfire (200x7)
NAD M25 (160x7)