1969 Sunn Coliseum PA amp. This is the kind of amp Leslie West used to get his unique tone with mountain. This was designed as a PA but makes an awesome, loud guitar amp. The amp is in great condition with wear as expected for a 46 year old amp: tolex is dry, the steel chassis has surface oxidation, and one of the huge transformers has a slightly bent ear. All original components except the polarity switch has been disconnected, a grounded plug added at some point for safety, and solid state diode rectification was added at some point for reliability. These modifications could be easily undone by a tech if desired.