Suggested Retail:$85. BOSS Audio Systems R1100M Riot Series Car Audio Subwoofer Amplifier - 1100 High Output, Monoblock, Class A/B, 2/4 Ohm Stable, Low/High Level Inputs, Low Pass Crossover, Mosfet Power Supply, Stereo. Shift your audio experience up a gear with the Boss Audio Riot R1100M Class A/B Monoblock Amplifier. This powerful 2-Ohm stable amplifier features 1100 Watts Max Power with a MOSFET power supply to rock your tunes. Customize the sound with Variable Low Pass Crossover and Bass Boost. Tweak the Bass and feel the vibes with the Remote Subwoofer Control. Amplifiers in the Riot Series are perfect for first time car audio buyers looking to add Bass, enhanced sound and performance to their system at an affordable price. Drive up the beat with the Boss Audio R1100M.. . 7 DAY FULL REFUND GUARANTEE ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 DAY STORAGE IS ALSO AVAILABLE. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.