Pass Labs X5 5-Channel Power Amplifier EUC

The X5 five channel amplifier embodies the design technology and refinements of the larger “X” series amplifiers including extensions of the patented Supersymmetry circuit. The Supersymmetry circuit topology was granted a U.S. patent in 1994, and is the result of 19 years of effort by Nelson Pass. The amplifier uses highly matched components in a classically simple balanced Class A circuit. The amplifier contains only two simple stages: the first is a balanced single-ended Class A voltage gain stage. Its output drives a bank of high power Mosfets operated as voltage followers.

The X Series amplifiers have the tremendous dynamic range (>150 dB) to do justice to the 24 bit recordings of the 21st Century. The simple but powerful circuitry moves easily from total silence to explosive transient and back to silence without a trace. It’s a spooky experience.