1991 Sony TA-AV870D 

●Rated output: Front 85W+85W (6Ω)
●Maximum practical output: Front 120W+120W (6Ω, EIAJ), Center 120W (6Ω, EIAJ), Rear 50W+50W (6Ω, EIAJ)
●Total harmonic distortion: 0.03%
●Frequency response: 10Hz to 20kHz (±1dB)
●Power consumption: 245W
●External dimensions: 470W x 150H x 400Dmm
●Weight: 16.4kg