The Onkyo P-309 is a stereo preamplifier that was released in the 1980s. It features a sleek black design with knobs and buttons for controls. The P-309 is known for its solid build quality and reliability.
The Onkyo P-309 is a stereo preamplifier that was released in the 1980s. It features a sleek black design with knobs and buttons for controls. The P-309 is known for its solid build quality and reliability.
