Kemper profiles of a 100 watt Marshall JCM900  head.
Released in January 1990, the JCM900 boasted higher gain and lower noise coupled with the classic Marshall tone. The profiled model is the the two channel Hi-Gain Dual Reverb.
This package comes with  34 merged profiles : Clean, Crunch, High Gain 1 & 2 and Lead with up to 8 different cabinet combinations.