- solid state amplifiers
Mountain (MTN) amplifiers were 9V practice amps with a 6.5" speaker. MTN amps were billed as the worlds best 9V amp and were available from the 1990s until around 2008.
Source: MTN catalog 1990s
Mountain Amps Ltd, Building 3
3159 Celtic AvenueV6N 3X7 Vancouver , BC
British Columbia CA