Item: Vintage Dynaco ST- 80 Power Amplifier

The Dynaco Stereo 80 (or ST-80) is an awesome compact amplifier. It's got the power of solid-state with the looks of a tube amp. Looks cool, sounds even cooler.

Seller Notes: Service history unavailable on this unit , I have been using it as a daily player for the last few months with no issue , with that being said the unit should be looked over electronically prior to long term use and is being sold as is pictured for parts or repairs , there is some minor corrosion to the chrome and wear to the chrome plating in a few areas (see photos). When in use the power button light flickers , I’m not sure if this how it’s supposed to be but I figured I would let potential buyers know , this doesn’t affect usability when running . Please ask all questions/ address all concerns prior to purchasing, no returns!

Shipping to USA excludes shipping to Hawaii , Puerto Rico and Alaska!

Thanks for looking!

PRODUCTION

1971-72

CONDITION

7/10

SPECS

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

Frequency response: 10Hz to 50kHz

Total harmonic distortion: 0.5%

Damping factor: 40

Input sensitivity: 1.3V

Signal to noise ratio: 90dB

Speaker load impedance: 4Ω to 16Ω

Semiconductors: 12 x transistors, 10 x diodes

Dimensions: 14 x 8 x 4 inches

Weight: 13lbs

LINER NOTES

The Dynaco Stereo 80 is an all silicon transistor basic power amplifier for use with separate preamplifiers such as the Dynaco PAT-4 or PAT-5 or for use with tape recorders or tuners such as the Dynaco FM-5 which have their own volume controls.

The unit contains two 40 watt amplifiers on one chassis with a common power supply. It has been designed to be used under normal conditions without special safety precautions, just as if it were a high-grade tube amplifier.

There are no circuit breakers, speaker fuses, or other resettable devices to impede the use of the Stereo 80 under any reasonable conditions of use or abuse. This is achieved by using novel circuits which automatically and instantly protect the amplifier.

COMPANY HISTORY

Founded by hi-fi pioneer David Hafler and Ed Laurent in 1955, a small company by the name of Dynaco unknowingly would become the most popular tube amplifier company of all time. Five years prior in 1950, David Hafler and his friend Herb Keroes started up the company Acrosound, dedicated to building audio quality