JL Audio 900/5
Differential-Balanced Input Topology: Three Stereo Pairs (Front, Rear and Sub)
Front Crossover: Continously-variable (50 Hz - 500 Hz), selectable-slope (12 dB/octave Butterworth or 24 dB/octave Linkwitz-Riley) HP or LP
Rear Crossover: Continously-variable (50 Hz - 500 Hz), selectable-slope (12 dB/octave Butterworth or 24 dB/octave Linkwitz-Riley) HP or LP
Subwoofer Crossover: Continously-variable (50 Hz - 500 Hz), selectable-slope (12 dB/octave Butterworth or 24 dB/octave Linkwitz-Riley) LP
Preamp Output: 2-channel (pass through or tracking LP)
Infrasonic Filter: Defeatable 24dB/octave at 30 Hz
Front and rear speaker output connections: Accept up to 12 AWG wire
+12V and Ground connections: Accept up to 4 AWG wire 
Rated Power Front Channels: 100W RMS x 2 @ 4O (11V - 14.5V) 75W RMS x 2 @ 1.5-3O (11V - 14.5V)
Rated Power Rear Channels: 100W RMS x 2 @ 4O (11V - 14.5V) 75W RMS x 2 @ 1.5-3O (11V - 14.5V)
Rated Power Subwoofer Channel: 500W RMS x 1 @ 1.5-4O (11V - 14.5V)
THD at Rated Power: <0.03% @ 4O (front and rear ch.)
<0.05% @ 5 ohm (subwoofer ch.)
S/N Ratio (Front & Rear Channels): >108.5 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
S/N Ratio (Subwoofer Channel): >95 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
Frequency Response (Front and Rear Channels): 12 Hz - 28 kHz (+0, -1dB)
Frequency Response (Subwoofer Channel): 12 Hz - 10 kHz (+0, -1dB)
Damping Factor (Front and Rear Channels): >400 @ 4O per ch. / 50 Hz
>200 @ 2O per ch. / 50 Hz