3 Channel, 100w High Gain FET Solid State Guitar Amplifier Head with Reverb,F/X loop, 1/8´´ Stereo Media input, Headphone output, Speaker emulated XLR direct output with ground lift and footswitch included Specs Wattage / Power 100 Watts @ 4 Channels 3 Speaker n/a Impedance Minimum 4 FX/GATE/REVERB Spring Reverb FOOTSWITCH Channel 1/2 and Channel 3 (RF1003) Dimensions (LxWxH in mm) 630x270x270 Weight (kg) 14.5.