jl 250/1...
Description: Class D Monoblock Subwoofer Amplifier
Patented Technology: High-Damping Class D Circuit with discrete control circuitry
Differential-Balanced Input Topology: 1 pair of inputs
On-board Crossover: Fully-variable (40-200 Hz), selectable-slope (12 or 24 dB per octave) LP
Bass EQ: Variable boost up to +15dB
Infrasonic Filter: Defeatable 24dB / octave at 30 Hz
Signal-Sensing Turn-On: Permits operation without remote lead
Dual mono speaker output connections: Accept up to 8 AWG wire
+12V and Ground connections: Accept up to 4 AWG wire
those specs are for the 250/1v2 but its essentially the same thing, the main change i believe is the cooling fins.