The GH100TI is a 100 watt master volume style head designed specifically to meet the tonal demands of Tony Iommi. The GH100TI is equipped for out and out metal with 5 stages of gain permanently engaged and several cunning high gain modifications, this amplifier is the ultimate partner to one of the most influential players of all time. The GH100TI awesome output is matched by the extraordinary GS412LA and GS412LS cabinets, specifically designed to accommodate the GH100TI output characteristics. These cabs are "Metal" through and through, fitted with custom designed Celestion drivers and finished with a steel kick grill. The ultimate NU metal stack!