The Schecter Hellraiser USA 100W tube guitar amp head gives you the option of 100W or 50W operation. The Focus control works as a global "tweak" that adjusts the amp's input frequency response to custom tailor the low frequency response for different styles of guitars. The Normal and Active input configuration activates circuit changes in the amp that compensate for active pickups' typical lack of low-end extension and high frequency sparkle rolloff. The Clean Channel features Bass, Mid, Treble, Volume, Gain and UK/USA voicing, while the Lead Channel I has Bass, Mid, Treble, Volume and Gain controls.