1991 Luxman L-570Z's

●Rated output: 50W+50W (8Ω)
●Total harmonic distortion: 0.01% (8Ω, 20Hz-20kHz)
●Input sensitivity/input impedance: 2.5mV/50kΩ (Phono MM), 0.1mV/100Ω (Phono MC), 150mV/47kΩ (LINE)
●Signal-to-noise ratio: 86dB (Phono MM), 74dB (Phono MC), 108dB (LINE)
●External dimensions: 438W x 176H x 467Dmm
●Weight: 30kg

[@利明阿部-h8o]

確か50万位だと思います。懐かしいです！