DC1100.1 - Zapco Monoblock 1100W DC Series Amplifier with On-Board Digital Processing DC1100.1 - Zapco Monoblock 1100W DC Series Amplifier with On-Board Digital Processing Mono, 4 ohms: 1 x 820 Watts | Mono, 2 ohms: 1 x 1100 Watts SymbiLink Balanced Inputs On-Board, Full Function DSP Dimensions: 24.4"L x7.12"W x 2.35"H