After some digging, it's confirmed. They have a really high x-over:
Front Ch 60 W per channel (4 ohm), 120 Hz–20 kHz, 1 % THD
Surround Ch 60 W per channel (4 ohm), 120 Hz–20 kHz, 1 % THD
Center Ch 250 W per channel (4 ohm), 120 Hz–20 kHz, 1 % THD
Subwoofer Ch 250 W per channel (4 ohm), 45 Hz–120 Hz, 1 % THD
Also, at the "rated" 1000 watts of power, it was taken at only one frequency (1KHz), and was 10% THD.
First point - You will have to find a receiver who's cross-over can be set as high as 120Hz.
Second point - The new receiver doesn't need to be rated anywhere near 1000 watts. JohnK will be along shortly to explain.
