Sony TA-5000

Documentation on the Sony TA-5000 is thin. No production years, original price or circuit details have surfaced. What is known comes from a single equipment directory listing, which identifies it as a Japanese-made stereophonic amplifier.

The specs that do exist describe a modestly powered unit. It puts out 2 x 40W into 8 ohms, or 2 x 55W into 4 ohms. Frequency response is rated from 5 Hz to 100 kHz, with distortion under 0.1%. It takes phono, tuner and auxiliary inputs and handles speakers from 4 to 16 ohms. It weighs 13 kg in a 430 x 130 x 330 mm frame, which is a lot of weight for that size and suggests a beefy power supply and transformer.

Beyond that, the record goes quiet. Whether it was an early transistor design or a late hybrid, where it sat in Sony's amplifier lineup, and how it was received are all undocumented. If you own one or have seen period literature, the archive would welcome the details.

Power output: 2 x 40W (8 ohms) / 2 x 55W (4 ohms)
Frequency response: 5 Hz – 100 kHz
Distortion: < 0.1%
Inputs: Phono, tuner, AUX
Dimensions: 430 x 130 x 330 mm (WxHxD)
Weight: 13 kg