This MA Audio SS1000.4, Synergy Series 4-channel car amplifier, retails for $224.99 plus tax. MA Audio Synergy Series amplifiers feature blue LED lighting, fine-tuned audio controls, extreme durability, and proprietary technologies that deliver stronger, more reliable performance than other amplifiers on the market today. This high performance MOSFET amp delivers 125 watts RMS to 250 watts watts peak power into each channel - more than enough to drive a pair of full-range speakers or components to their musical peaks. You can also bridge the amp to blast 1000 watts peak power (500 watts x 2 channels @ 4 ohm) to a pair of subs or with its Tri-mode capability, run subs and speakers simultaneously. Other features include: MOSFET power supply, power/protection LEDs, selectable LP/FLAT/HP crossovers, LP (low pass) filters, gain controls, and RCA line inputs (low level). We are an authorized MA Audio dealer. Complete with a full 1 year warranty and our exclusive 30 day money back guarantee.