Item dimensions L x W x H 5.16 x 5.43 x 1.93 inches Manufacturer Taramps Mounting Type Surface Mount Brand Taramp's Number of Channels 4 The Taramps TS line has Multichannel amplifiers, being Full Range amplifiers with 4 channels, and are also amplifiers with high power and cost-benefit The TS 400x4 has 400 Watts RMS at 2 Ohms. As a versatile multichannel amplifier, this powerful amplifier offers the flexibility of bridged connections This multichannel amplifier features 4 channels with 100 Watts RMS each (400 watts RMS total) and also with high-level input and automatic activation. The Positive/Negative Power Cable is 11 AWG | The Output Cables Wire Gauge is 15 AWG | The Remote Cable is 18 AWG | The Circuit Breaker or Fuse is 20A Perfect for various car