Currently considering the purchase of a 7700 or an Earthquake Cinenova Grande 7.

Current system includes:

Definitive Technology Bp7000sc (2), CLR 3000 (2), BPVX (2), and UIW RSII (2).

Sources: Onkyo NR5007, Camelot Technology Uther & Dragon, Adcom multidisc player, PS3 & SAT box.

Power management: PS Audio Powerplant premier and Richard Grey 400 pro.

The earthquake has more power per channel and is an unbalanced design (from what I have read). The 7700 is balanced although less power per channel. My receiver is rated at 145 watts per channel. I don’t have the ability to add circuits in my house thus I eliminated the 7900 from consideration. All the equipment runs through one 20 Amp circuit.

Any input or suggestions in regard to amplifier selection would be greatly appreciated.