DB DRIVE A3 85.4 4 X 85-Watt OKUR A3 Series 4-Channel AMP • 4 X 85W Max • 2Ohm Stereo Stable • Class Ab • Audiophile-Grade Components • Continuously-Variable 12Db Per Octave High Pass & Low Pass Crossover • Continuously-Variable 18Db Bass Boost • Buffered Preamp Input • High-Efficiency Mosfet Design • Drivesink Heat Management System