StereoStone 250-Watt sub amp
For those with a rack system that drives outdoor subs, the 250-Watt amp allows for convenient changing of the gain and/or setting the crossover as the amplifier is readily accessible in the rack system with the rest of the home theater components. This eliminates the need for outdoor 110/220-volt speaker cable runs from the amplifier directly to the subs. It will power one Sub Rock or two Gibralter Sub Rocks. Available now for $500.