GM-DX871

• mono subwoofer amplifier
• 300 watts RMS x 1 at 4 ohms (500 watts RMS x 1 at 2 ohms)
• 800 watts RMS x 1 at 1 ohm
• CTA-2006 compliant
• Class D amp technology
• frequency response: 10-240 Hz
• variable low-pass filter (40-240 Hz, 12 dB per octave)
• wired remote variable bass boost (0-18 dB at 50 Hz)

More Features:

• preamp inputs and outputs
• gold-plated RCA connections
• speaker-level inputs via supplied RCA-type adapters
• signal-sensing turn-on with speaker-level inputs
• wiring and hardware not included with amplifier
• 4-gauge power and ground leads recommended
• fuse rating: 40A x 2
• dimensions: 10-3/8"W x 2-3/8"H x 7-7/8"D
• warranty: 1 year
• 60-day returns
• MFR # GM-DX871

• RMS Power Output (Watts x Channels)    300 x 1
• Peak Power Output (Watts x Channels)    1600 x 1
• Power at 2 Ohms (Watts x Channels)    500 x 1
• Bridged Power (Watts x Channels)    N/A
• Minimum Impedance Bridged    N/A
• Minimum Impedance Unbridged    1
• Minimum Impedance    1
• Best Frequency Response    10-240 Hz
• THD at Rated RMS Power    1%
• Signal to Noise Ratio    75 dB
• Input Voltage    14.4v
• Features
• Amplifier Class    D
• Low-Pass Crossover Frequency    40-240 Hz
• Low-Pass Slope (dB/octave)    12 dB/octave
• High-Pass Crossover Frequency    N/A
• High-Pass Slope (dB/octave)    N/A
• Bass Boost    0-18 dB
• Bass Boost Frequency    50 Hz
• Fan Cooled    No
• Fuse Rating    80
• Speaker Level Inputs    Yes
• Preamp Outputs    2
• Width (inches)    10-7/8
• Height (inches)    2-3/8
• Depth (inches)    8-1/2
• Parts Warranty    1 Year
• Labor Warranty    1 Year

Pioneer GM-DX871 owner's manual