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Dynaco SCA-80

Integrated Amplifier (1971)

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Dynaco SCA-80


The SCA-80 is a one-piece, transistorized integrated package combining the Stereo 80 power amplifier with a pre-amplifier having all the quality and many of the features of the PAT-4.

An extremely cool operating amplifier, the SCA-80 will deliver a full 40 watts rms per channel from 20 Hz to 20 kHz with both channels driven simultaneously.

Distortion at rated output is less than 0.5% harmonic, and decreases with reduced power. The patented Dynaco protection circuit automatically resumes program material after abusive conditions (eg shorted speaker leads) are remedied.

Sophisticated switchable features such as loudness, filters, blending, and tape monitor are provided, yet the SCA-80 is simple to operate with a basic two-knob control action.

A front panel headphone jack and switching provisions for two sets of stereo speakers are provided. Listening is greatly enhanced by the extraordinary quiet preamplifier section - even when the volume control is at its full setting.

The universal power transformer supplied with the SCA-80 has multiple primary windings so that regardless of where you live, the amplifier will deliver its full rated power.


Power output: 40 watts per channel into 8Ω (stereo)

Frequency response: 15Hz to 50kHz

Total harmonic distortion: 0.5%

Input sensitivity: 3mV (MM), 130mV (line)

Signal to noise ratio: 60dB (MM), 80dB (line)

Channel separation: 65dB (line)

Semiconductors: 20 x transistors, 10 x diodes

Dimensions: 13.5 x 10 x 4.25 inches

Weight: 7.2kg


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re: SCA-80

I have this rarity SCA 80 dynaco.
I look for the panel volume button. Can someone help?

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