Older Sony TA-E80ES stereo control pre-amplifier with remote, power switch and input selector is sticky, but remote works well to control if the buttons on the unit do not, - Albrecht Auction Service
Sony - TA-E80es - Stereo Control Amplifier - Champagne - Catawiki
Sony TA-E 80 ES | Pre Amplifiers | Amplifiers | Audio Devices | Spring Air