Alpine PDX 1.600 amp - $300 (Thornton)

The PDX-1.
600 mono amplifier supplies a whopping 600 watts of power from its amazingly compact body, plenty of punch for most sub systems.
Beefy internal components and clever engineering keep the power output strong and the noise low for superb fidelity and control.
The adjustable low-pass filter tailors the amp's output to your specific system.
mono subwoofer amplifier 600 watts RMS x 1 at 4 ohms (600 watts RMS x 1 at 2 ohms) CEA-2006 compliant stackable installation design with front-panel controls variable low-pass filter (50-200 Hz, 24 dB/octave) switchable subsonic filter (15 or 30 HZ) quick-connect speaker connectors preamp-level inputs and outputs Class-D amplifier design MOSFET power and output stages fuse rating: 20A x 4 4-gauge amp wiring kit with 80-amp fuse recommended — wiring and hardware not included with amplifier Photos show this amp and an Alpine PDX 4.
100 amp which I also have for sale for $300.
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