SW1X LPU 1 SPX Speaker Amps OTL (Output Transformerless) topology using

OTL (Output Transformerless) topology using 6V6GT power valves in triode connection at the output

with battery life measured in weeks

Handbuilt Viva chassis in a compact form factor with four RCA inputs and dual headphone jack outputs

Star-Quad 4-conductor geometry

Installation is a straightforward swap you can do at home in minutes

SW1X LPU 1 SPX Speaker Amps OTL (Output Transformerless) topology usingThe SW1X LPU I SPX is a Moving Magnet valve phono preamplifier built on a circuit topology borrowed directly from the input stages of the reel to reel tape recorders used in mastering studios and radio stations of the 1960s, a two stage design using EF86 pentode input valves that were themselves found in the finest recording equipment of that era, loaded by an active series resistor less RIAA equalization network and driven by a 6N6P or 5687 double