versatile amp 5W power by 6 LR6 batteries or transformer 12V provided HP 8 "Custom 3 input channels XLR / jack on channel 1 registers stereo jack on instrument / line input 2 channel General 3 EQ channel 2 bands adjustable delay and assignable to each channel output mini-jack tilt helmet position return dimensions: 31.4 x 36 x 27.8 cm weight: 7 kg.