The VOX AC15C1-TV-BC and AC30C2-TV-BC Limited Edition Custom Series amps offer two channels; Normal and Top-Boost. Each channel is equipped with its own Volume control, and the Top Boost channel offers highly interactive Treble and Bass tone controls. This powerful channel pairing provides an abundance of tone-crafting control, letting you dial in a classic tone that is all your own. Both channels rely on the Tone Cut and Volume controls in the Master section. The Tone Cut control operates in the power stage rather than the preamp stage, allowing an additional degree of tone-shaping. The Master Volume control works in conjunction with the individual volumes of each channel to create just the right degree of gain-staging. By balancing the individual and Master volumes, the Custom Series can deliver the coveted clean VOX "chimey" sound or a powerful overdriven tone – and everything in between."