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I had the amp going with new (bigger) output transistors and everything seemed to be okay with the exception of the hum on idle. This is not controllable by volume and it is not external. Audio sounded wonderful and hum get's covered at around 15% volume or less.
Many of these integrated amps by Technics from the 80's look to be well built with great specs, but not much info or reviews out there. Personally, I find the SU-v10x to be a solid performer. It generates good clean sound backed by a lot of power.
The legendary SU-V7 - A vintage Japanese shelf-bender. Specifications: • Power output: 80 watts per channel into 8Ω (stereo) • Frequency response: 20Hz to 20kHz • Total harmonic distortion: 0.03% • Damping factor: 40 • Input sensitivity: 0.17mV (MC), 2.5mV (MM), 150mV (line) • Signal to noise ratio: 68dB (MC), 78dB (MM), 90dB (line)
Technics Su-V7 (1) - Free download as PDF File (.pdf) or read online for free. Amplificador receiver.