Cary Audio Design SLA-50 is a stereo amplifier with exceptional sound quality and technical capabilities. It operates in class A mode, utilizing auto bias cathode self-biasing on the EL-34 (6CA7) output tubes, resulting in incredible reliability and enjoyment. The output transformers are specifically designed for the SLA-50, providing greater sensitivity, extremely low distortion, and improved transient response.

The SLA-50's overload recovery ability is of critical concern, and it will overload symmetrically at any frequency in the audio band-pass. It can also yield faithful reproduction of extremely low frequencies at full output levels.