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About the Stereo 120
The Dynaco Stereo 120 is an all silicon transistor basic power amplifier introduced in the early 1970s, featuring two 60 watt amplifiers on one chassis with a common power supply. It is designed for use with separate preamplifiers such as the Dynaco PAT-4 or PAT-5, or with tape recorders or tuners that have their own volume controls. Despite being a solid-state device, it was engineered to operate safely and reliably without special precautions, similar to high-grade tube amplifiers. It includes patented circuits that automatically protect the amplifier from damage without the need for circuit breakers or fuses. The amplifier is noted for its sonic ease, naturalness, and remarkable clarity, delivering deep and tight bass with low distortion and noise comparable to fine tube designs. It has a frequency response from 5 Hz to 100 kHz and a damping factor of 40, making it suitable for a wide range of speaker loads from 4 to 16 ohms. The unit weighs 20 pounds and measures 13 x 10.5 x 4 inches. Originally sold as a kit or assembled unit, it is no longer manufactured.
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