It is not an old one it is from the HT-SR600(B) HTIB system by onkyo.. Here are the specs
Technical Details
650 Watts into 5.1 Channels (105 Watts per Channel Minimum into 6 Ohms,1 kHz, FTC [Front/Center/Surround]; 125 Watts Minimum into 6 Ohms, 1 kHz, FTC [Subwoofer])
DTS®, DTS® Neo:6 5.1, Dolby® Digital, Dolby® Pro Logic® II
HDTV-Capable (50 MHz) Component Video Switching (3 Inputs/1 Output)
Speaker A/B Drive
Compatible with RI Dock for the iPod®