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Frequently Compared Car Amplifiers

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Rockford Fosgate Power T400X2ad
Compact 2-channel car amplifier — 200 watts RMS x 2
Low stock
10 reviews
$329.99
  • 400 watts RMS x 1 bridged at 4 ohms
  • C.L.E.A.N. gain system includes clip lights and setup CD
  • variable Punch EQ bass/treble boost
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Rockford Fosgate Punch P500X2
2-channel car amplifier — 150 watts RMS x 2
Low stock
11 reviews
$299.99
  • 500 watts RMS x 1 at 4 ohms
  • C.L.E.A.N. gain system includes setup CD and clip lights
  • variable PEQ2 bass/treble boost
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Rockford Fosgate TM400X2AD
Power Series marine/powersports 2-channel amplifier — 200 watts RMS x 2
Low stock
4 reviews
$379.99
  • 400 watts RMS x 1 at 4 ohms (bridged)
  • Class AD amp technology
  • variable low-pass and high-pass filters
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Rockford Fosgate Power T750X1bd
Compact mono subwoofer amplifier — 750 watts RMS x 1 at 1 to 2 ohms
  • 500 watts RMS x 1 at 4 ohms (750 watts RMS x 1 at 2 ohms)
  • C.L.E.A.N. gain system includes clip lights and setup CD
  • variable Punch EQ bass boost
       
Condition New Stock New Stock New Stock New Stock
Performance Rockford Fosgate Power T400X2ad Rockford Fosgate Punch P500X2 Rockford Fosgate TM400X2AD Rockford Fosgate Power T750X1bd
RMS Power Output (Wt x Channels) 200 x 2
150 x 2
200 x 2
500 x 1
Peak Power Output (Wt x Channels) 223 x 2 N/A 223 x 1 N/A
Power at 2 Ohms (Wt x Channels) 200 x 2 250 x 2 200 x 2 750 x 1
Bridged Power (Wt x Channels) 400 x 1 500 x 1 400 x 1 N/A
Minimum Impedance Bridged 4 4 4 N/A
Minimum Impedance Unbridged 2 2 2 1
Best Frequency Response 20-20000 Hz 20-20k Hz 20-20k Hz 20-230 Hz
THD at Rated RMS Power 1% 1% 1% 1%
Signal to Noise Ratio 90 dB 85 dB N/A 90 dB
Input Voltage 14.4v 14.4v 14.4v 14.4v
Features Rockford Fosgate Power T400X2ad Rockford Fosgate Punch P500X2 Rockford Fosgate TM400X2AD Rockford Fosgate Power T750X1bd
Amplifier Class A/D AB A/D BD
Low-Pass Crossover Frequency 50-250 Hz 50-250 Hz 50-250 Hz 50-250 Hz
Low-Pass Slope (dB/octave) 12 dB/octave 12 dB/octave 12 dB/oct 12 dB/octave
High-Pass Crossover Frequency 50-250 Hz 50-250 Hz 50-250 Hz N/A
High-Pass Slope (dB/octave) 12 dB/octave 12 dB/octave 12 dB/oct N/A
Bass Boost 0-18 dB 0-18 dB 0-18 dB 0-18 dB
Bass Boost Frequency 45 Hz 45 Hz 45 Hz 45 Hz
Fan Cooled Yes No Yes Yes
Fuse Rating 60 80 60 100
Speaker Level Inputs Harness RCA RCA Harness
Preamp Outputs No 1 pair No No
Width (inches) 7 13-3/8 4-5/16 8-1/2
Height (inches) 1-5/8 2-7/16 1-5/8 1-11/16
Depth (inches) 4-1/4 8-13/16 7-5/16 4-5/16
Parts Warranty 2 Years 1 Year 2 Years 2 Years
Labor Warranty 2 Years 1 Year 2 Years 2 Years
  Owner's Manual Owner's Manual Owner's Manual Owner's Manual
Hands-on Research Hands-on Research Hands-on Research Hands-on Research
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Rockford Fosgate Power T400X2ad
Compact 2-channel car amplifier — 200 watts RMS x 2
Low stock
10 reviews
$329.99
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Rockford Fosgate Punch P500X2
2-channel car amplifier — 150 watts RMS x 2
Low stock
11 reviews
$299.99
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Rockford Fosgate TM400X2AD
Power Series marine/powersports 2-channel amplifier — 200 watts RMS x 2
Low stock
4 reviews
$379.99
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Rockford Fosgate Power T750X1bd
Compact mono subwoofer amplifier — 750 watts RMS x 1 at 1 to 2 ohms
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