Very Rare Amperite 6550

The Amperex 6550 is a high-power beam tetrode tube, widely used in audiophile-grade amplifiers and professional audio gear. Renowned for its robust build quality and excellent tonal balance, it delivers powerful output with tight bass, smooth mids, and clear highs. Amperex 6550s are especially prized for their reliability, musicality, and dynamic response, making them a sought-after choice among hi-fi enthusiasts and musicians seeking vintage tone and performance.