The Technics SU-V7A is a high-performance stereo amplifier with a subsonic filter and balance adjustment function. - Model: SU-V7A - Brand: Technics - Type: Stereo Integrated DC Amplifier - Features: Subsonic filter, balance adjustment, mute function - Outputs: Speaker output, headphone output Thank you for viewing. This item was at my father's house, which he used. He said it was working a few years ago. The power turns on, but other operations have not been confirmed.