No Trades..... Subwoofers •12" Dual 4 Ohm RT Pro Series Subwoofer •Power Handling: ◦RMS: 210 watts •Mica filled polypropylene cone •Santoprene rubber surround •FEA Optimized motor structure •Linear conex spiders •Pressed steel basket •Spade terminals •High temperature 8-layer voice coil •Single magnet •Resonance Frequency (Fs): 20 Hz •Top-mount depth: 6-5/8" •Sensitivity: 87 dB Amplifier •Class-D 1-Ohm Stable Monoblock Amplifier •RMS Power Rating: ◦4 ohms: 1200 watts x 1 chan. ◦2 ohms: 1700 watts x 1 chan. ◦1 ohm: 2200 watts x 1 chan. •Total power output: 4000 watts •Pulse Width Modulated MOSFET power supply •Wired remote bass level control included •LED power (green) and protect (red) indicators •Mono channel operation •Preamp RCA outputs to daisy chain multiple amps •3-way protection circuitry (thermal, overload, and speaker short protection) •Input sensitivity: 0.25V - 8V •Frequency Response: 20 - 150 Hz •Total Harmonic Distortion (THD): 0.05% •Signal to Noise Ration: 80 dB •Variable low-pass filter: 40 - 150Hz, 12 dB/octave •Subsonic filter: 20 - 50Hz •Variable Bass Boost: 0 to +18 dB bass boost •Phase Shift: 0° - 180° •Fuse Rating: 30 A x 3