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Sony TA-1055

Integrated Stereo Amplifier (1973-74)

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Sony TA-1055


Power output: 23 watts per channel into 8Ω (stereo)

Frequency response: 10Hz to 60kHz

Total harmonic distortion: 0.5%

Damping factor: 22

Input sensitivity: 2mV (mic), 2mV (MM), 250mV (line)

Signal to noise ratio: 65dB (mic), 70dB (MM), 90dB (line)

Output: 250mV (line), 30mV (DIN)

Speaker load impedance: 4Ω to 16Ω

Semiconductors: 19 x transistors, 8 x diodes, 1 x IC

Dimensions: 16-1/8 x 4-3/4 x 11-1/8 inches

Weight: 13.5lbs


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Reviewed Aug 08th, 2017 by Waltersobchak

Wonderful amp, those 23w are really incredible with new capacitors. Bass are fantastic, grab one and try it if you can. A great one by Sony.

Reviewed Jun 19th, 2014 by mikifin

Terrific little amp that no one knows about. Get one now before the price go through the roof.
Punchy, fun and surprising loud.



re: TA-1055

Sony released an updated version, the '1055A. It replaced the front panel AUX input connector with a control to allow mixing microphone signals. It is a less common feature for the era and not particularly useful for many folks. Schematic and service documentation for the 'A' variant seems to be rare.

This website is not affiliated with or sponsored by Sony. To purchase TA-1055 spares or accessories, please contact the company via their website or visit an authorised retailer.