This is the Rare TECHNICS SU-V550 / VC-4 Class AA Amplifier. This vintage amp is still top of the range with very clear and good sound. Enjoy vintage professional sound quality as you have never experienced before. This amp is tested and in working condition. This amp is very clean, look at the pictures for details. Specifications: VC-4: minimal distortion and superior dynamic range. Speakers: maine/remote. Bass-Treble-Balance-loudness. Subsonic filter switch: on/off. Tone control: on/off. Phonoselector: MM/MC. Input: CD-TUNER-PHONE-AUX-TAPE 1-TAPE 2. Phono input switchable for MD cartridges or a high end MC cartridge. The CD direct button ensures that incoming signals are sent straight to the power amp, allowing you to enjoy clear, unhindered sound. Power output: 65 watts per channel into 8Ω (stereo). Power output: 85 watts per channel into 4Ω (stereo). Frequency response: 20Hz to 20kHz. Total harmonic distortion: 0.002%. Damping factor: 60. Input sensitivity: 0.17mV (MC), 2.5mV (MM), 150mV (line). Signal to noise ratio: 64dB (MC), 77dB (MM), 91dB (line). Channel separation: 50dB (line). Output: 150mV (line). Speaker load impedance: 4Ω to 16Ω. Year: 1988 Dimensions: 430 x 126 x 311 mm. Weight: 10 kg. Shipping method: PostNL (international bidders are welcome!). From a smoke and pet free home.