Sunfire Dynamic SDS-8 Subwoofer System - 200 W RMS - Black AshOverview Specifications The SDS 8 is the perfect choice for systems where small size and high output are equally important. Sunfire's digital amplifier delivers 400W of peak output, with unprecedented performance at this price. A front firing, 8" custom Sunfire driver is acoustically matched to an 8" down firing passive radiator, creating nearly double the output compared to conventional single driver designs. Small rooms, big bass no problem! General