Built-in amplifier 500 W @ 0.20 ê 0.20 ê 70 mV ? 1.40 V RMS 280 mV ? 5.4 V RMS 8 AWG wire 30 A (ATO or ATC) Slot-ported, Low-profile Black carpet Black Steel Mesh Low-Pass only 12 dB/octave 50 Hz ? 200 Hz Yes Optional (RBC-1)36.625 in / 905 mm 11.125 in / 283 mm 5.125 in / 130 mm 34.9 lb / 15.83 kg