Pioneer is a Japanese company that designs and manufactures electronic products.

Pioneer

The Pioneer M-90A is a stereo power amplifier that was part of Pioneer's Elite series, designed for high-fidelity audio reproduction. It features a direct-coupled circuit design that eliminates the need for coupling capacitors, which can degrade sound quality. The M-90A is capable of delivering high power output, making it suitable for driving demanding speakers. It includes features such as signal overload protection, a digital power meter, and selectable impedance for different speaker configurations. The build quality is solid, with a robust chassis and high-quality components that contribute to the overall performance.

M-90a

by Pioneer

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