Walmart offers the Boss Audio Riot Series 250-watt Mosfet Power Monoblock Amplifier
, model no. R1100M, for $48.95
have it for about the same with free shipping.) Opt for in-store pickup
to avoid the $4.97 shipping fee. That's the lowest price we could find by $6. It features a 250-watt RMS (1,100-watt max) power output, variable crossover, variable bass boost, remote subwoofer level control, and LED power and protection indicators.