Vintage 1990s-era Sony STR-AV910 Audio Video Control Center (1989). 100-watts per channel into 8Ω stereo (front) and surround output 20-wats (rear) with remarkable frequency response of 10Hz to 70kHz, THD of 0.03% and SNR of 87dB (phono moving magnet), 105dB line. Handles impedance load from 8 to 16 Ohms.

Tested in working order, bright display and very good physical condition given age. No remote-control (RM-U100).