The Class D series from Power Acoustik is made for bass! The A1800DB breaks all the cost-to-power boundaries with its cutting-edge class D design and insane power capabilities. A built-in low pass crossover with variable frequency control eliminates the need for an external crossover and makes the A1800DB ideal for driving your subwoofers with clean Power Acoustik power. Other features include variable subsonic filter to help protect your subs, 0-180 degree phase control for tight, accurate bass, 1-ohm stability, and gold-plated terminal-block connectors. A heavy-duty aluminum alloy heatsink gives these amps a distinctive, rugged look while still maintaining a compact footprint.
Features:
Ultra-Efficient Class D Circuitry
Fully Regulated PWM Mosfet Power Supply
1 Ohm Stable - 1400 Watts RMS Into A 1 Ohm Load!
Variable 50-150 Hz Low-Pass Crossover
Variable 15-40 Hz Subsonic Filter
0-180 Degree Phase Control
Variable Bass EQ at 45 Hz
Remote Level Control Included
4-Way Protection Circuit
Gold-Plated Input and Speaker Terminals
RCA Outputs
Subwoofer Mono Amp SpecificationsAmplifier Type: Mono
RMS Power: 600W x 1 @ 4 Ohms
THD at 4-Ohm RMS Power: 0.5 %
Bridged RMS Power: 1100W x 1 @ 2 Ohms
Speaker Level Inputs: no
Preamp Outputs: yes
Built-In Crossovers: LP
Bass Boost: 0 - 18 dB
Frequency Response: 15-150 Hz
Signal to Noise Ratio: 100 dB
Fuse Rating: n/a
yours for $250 shipped or OBO. Used once to push my id maxs then upgraded to the bigger amp