Valve Audio was established in 1994 in South Africa and is an amplifier manufacturer with a very high pedigree. Valve Audio is famous for their Black Widow pre/power (first product and still in production) and more recently the Whisper phono, which is arguably the best phono stage in the world under 5 figures (used by Van Den Hul the cable and cartridge manufacturer amongst others). The Exclame 150 is the entry to this much lauded brand and comprises a valve pre-amplifier and a stereo 150 watt MOS-FET power amplifier on one chassis. Highly Recommended!!