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Marine Amplifiers Comparison

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Rockford Fosgate TM400X2AD
Power Series marine/powersports 2-channel amplifier — 200 watts RMS x 2
In 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 PM300X2
Punch marine/powersports 2-channel amplifier — 100 watts RMS x 2
Low stock
2 reviews
$249.99
  • 300 watts RMS x 1 at 4 ohms (bridged)
  • variable low-pass and high-pass filters
  • Class AB amp technology
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Rockford Fosgate PM500X2
Punch marine/powersports 2-channel amplifier — 150 watts x 2 at 4 ohms
Temporarily out of stock
1 review
$399.99
  • 500 watts RMS x 1 at 4 ohms (bridged)
  • variable low-pass and high-pass filters
  • Class AB amp technology
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JL Audio M600/6
6-channel marine amplifier — 75 watts RMS x 6
Low stock
19 reviews
$639.99
  • 200 watts RMS x 2 bridged
  • variable high-pass/low-pass filters
  • powder coat finish
       
Condition New Stock New Stock New Stock New Stock
Performance Rockford Fosgate TM400X2AD Rockford Fosgate PM300X2 Rockford Fosgate PM500X2 JL Audio M600/6
RMS Power Output (Wt x Channels) 200 x 2 100 x 2 150 x 2 75 x 6
Frequency Response at Rated RMS Power 20-20k Hz 20-20k Hz 20-20k Hz 20-20k Hz
THD at Rated RMS Power 1% 1% 1% 1%
Signal to Noise Ratio N/A N/A N/A 104 dB
Input Voltage 14.4v 14.4v 14.4v 14.4v
Peak Power Output (Wt x Channels) 223 x 1 N/A N/A N/A
Power at 2 Ohms (Wt x Channels) 200 x 2 150 x 2 250 x 2 100 x 6
Bridged Power (Wt x Channels) 400 x 1 300 x 1 500 x 1 200 x 3
Minimum Impedance Bridged 4 4 4 4
Minimum Impedance Unbridged 2 2 2 2
Features Rockford Fosgate TM400X2AD Rockford Fosgate PM300X2 Rockford Fosgate PM500X2 JL Audio M600/6

Class AB amps: the more traditional car amplifier design, delivering low distortion and high reliability, usually from a larger chassis. AB amps are not very efficient, losing about half their power to heat.

Class D amps: higher efficiency, less heat, and less current draw than AB amps. Modern designs have eliminated the distortion that's been an issue in the past, and their compact size makes them a great choice.

BR (Boosted Rail) amplifiers use a special design that eliminates the built-in power supply, so they can deliver big power from an extremely small chassis.

" data-placement="bottom">Amplifier Class
A/D AB AB D
Low-Pass Crossover Frequency 50-250 Hz 50-250 Hz 50-250 Hz 50-500 Hz
Low-Pass Slope (dB/octave) 12 dB/oct 12 dB/octave 12 dB/octave 12 dB/oct
High-Pass Crossover Frequency 50-250 Hz 50-250 Hz 50-250 Hz 50-500 Hz
High-Pass Slope (dB/octave) 12 dB/oct 12 dB/octave 12 dB/octave 12 dB/oct
Bass Boost 0-18 dB 0-18 dB 0-18 dB No
Bass Boost Frequency 45 Hz 45 Hz 45 Hz N/A
Fan Cooled Yes No No No
Fuse Rating 60 50 80 50
Speaker Level Inputs Yes Yes Yes Yes
Preamp Outputs No 1 pair 1 pair No
Height (inches) 1-5/8 2-7/16 2-7/16 2-1/16
Width (inches) 4-5/16 9-15/16 13-3/8 10-5/16
Depth (inches) 7-5/16 8-13/16 8-13/16 7-1/8
Parts Warranty 2 Years 1 Year 1 Year 2 Years
Labor Warranty 2 Years 1 Year 1 Year 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 TM400X2AD
Power Series marine/powersports 2-channel amplifier — 200 watts RMS x 2
In stock
4 reviews
$379.99
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Rockford Fosgate PM300X2
Punch marine/powersports 2-channel amplifier — 100 watts RMS x 2
Low stock
2 reviews
$249.99
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Rockford Fosgate PM500X2
Punch marine/powersports 2-channel amplifier — 150 watts x 2 at 4 ohms
Temporarily out of stock
1 review
$399.99
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JL Audio M600/6
6-channel marine amplifier — 75 watts RMS x 6
Low stock
19 reviews
$639.99
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