Jvc is one of the worlds leading developers and manufacturers of sophisticated mobile audio products and now you can boost your sound performance with the jvc palmer series 520-watt amplifier. Shaun palmers sohc line of power amplifiers offers high-level performance to satisfy those who crave big power. With variable input level and bass boost control, you decide where all your power goes and the 2-ohm stable operation guarantees peak performance. The ks-ax4550 also offers temperature and overload protection to ensure that even you cant blow your system. A clear top-mounted control knob window and brushed aluminum heat sink combine to deliver one hot-looking amp. Features include: max. Power 260w x 2, super optimum high power circuit (sohc) , top-mounted control panel, dual 80hz low-pass or high-pass crossovers , dual variable 50hz bass boosts , gold-plated connectors , die-cast aluminum heat sink , bridgeable 4-channel power amplifier ,continuous power (rms) of 50w per channel into 4 ohms 20hz-20khz at no more than 0.08 Thd , 2 ohm stable operation (2-8 ohm allowable) , variable input level control , hpf/lpf/off switch , gold-plated large input terminal and rca jack , over-temperature protection , overload protection short circuit protection , dc offset protection , anti-pop circuit , signal/noise ratio 100db , bass boost frequency 50hz , line input level 0.3-5V 1 year manufacturers warranty, model no: ks-ax4550, weight: 12 lbs.