Thumb Score: +7 Sound of Tri-State via eBay [ebay.com] has (Certified Refurbished) 4-Channel Rockford Fosgate Prime R2-300X4 300W Car Audio Amplifier on sale for $209.99. Shipping is free. Note: Per merchant, includes additional 2 Year Allstate warranty. [ebay.com] Product Specs: [LIST][*]4-channel car amplifier[LIST][*]50 watts RMS x 4 at 4 ohms[*]75 watts RMS x 4 at 2 ohms