Pass Labs XA30.8 Stereo AmplifierAn exceptional stereo power amplifier on many levels high biased MOSFETs providing higher power Class A operation, direct coupled front end circuitry for exceptionally high stability and larger, more robust heats sinks similar to those of the larger . 8 amplifiers. The list goes on, but listening may tell you the XA30. 8 represents a value high point quite possibly your particular optimal balance between performance and cost.