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Frequently Compared Car Amplifiers

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Memphis Audio PRXA300.4
Power Reference 4-channel car amplifier — 50 watts RMS x 4
In stock
$339.99
  • 140 watts RMS x 2 bridged at 4 ohms
  • variable low-pass, variable bass boost
  • LED accent lighting
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Memphis Audio SRX300.4
Street Reference 4-channel car amplifier — 50 watts RMS x 4
In stock
$199.99
  • 150 watts RMS x 2 at bridged at 4 ohms
  • preamp and speaker-level inputs
  • selectable bass boosts
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Morel MPS 4.400
4-channel car amplifier — 70 watts RMS x 4
  • 200 watts RMS x 2 bridged at 4 ohms
  • variable high- and low-pass filters on front and rear channels
  • preamp inputs only
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Focal FPX  4.400 SQ
4-channel car amplifier — 70 watts RMS x 4
Low stock
1 review

$749.99 -$150.00 Price break

$599.99
  • 200 watts RMS x 2 bridged at 4 ohms
  • variable high- and low-pass filters
  • preamp inputs
       
Condition New Stock New Stock New Stock New Stock
Performance Memphis Audio PRXA300.4 Memphis Audio SRX300.4 Morel MPS 4.400 Focal FPX 4.400 SQ
RMS Power Output (Wt x Channels) 50 x 4
50 x 4
70 x 4
70 x 4
Peak Power Output (Wt x Channels) --- --- N/A N/A
Power at 2 Ohms (Wt x Channels) 75 x 4 75 x 4 100 x 4 100 x 4
Bridged Power (Wt x Channels) 140 x 2 150 x 2 200 x 2 200 x 2
Minimum Impedance Bridged 4 4 4 4
Minimum Impedance Unbridged 2 2 2 2
Best Frequency Response 20-20k Hz 20-20k Hz 10-30k Hz 10-22k Hz
THD at Rated RMS Power 1% 0.1% 0.05% ---
Signal to Noise Ratio 80 dB 90 dB 100 dB 77 dB
Input Voltage 14.4v --- 14v 14.4v
Features Memphis Audio PRXA300.4 Memphis Audio SRX300.4 Morel MPS 4.400 Focal FPX 4.400 SQ
Amplifier Class AB AB AB AB
Low-Pass Crossover Frequency 50-250 Hz 30-250 Hz 40-400 Hz 40-5000 Hz
Low-Pass Slope (dB/octave) 12 dB/oct 12 dB/octave 12 dB/octave 12 dB/oct
High-Pass Crossover Frequency 80-1000 Hz 50-1000 Hz 40-400 Hz 40-5000 Hz
High-Pass Slope (dB/octave) 12 dB/oct 12 dB/octave 12 dB/octave 12 dB/oct
Bass Boost 0-12 dB 0, 6, 12 dB No No
Bass Boost Frequency 45 Hz 45 Hz N/A N/A
Fan Cooled No No No No
Fuse Rating 60 50 40 60
Speaker Level Inputs No No RCA No
Preamp Outputs No No No No
Width (inches) 13-1/8 14-3/16 13-5/16 12-3/8
Height (inches) 2-3/16 2-3/16 2-1/8 2-5/16
Depth (inches) 7-9/16 8 6-3/4 6-15/16
Parts Warranty 1 Year 1 Year 1 Year 1 Year
Labor Warranty 1 Year 1 Year 1 Year 1 Year
  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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Memphis Audio PRXA300.4
Power Reference 4-channel car amplifier — 50 watts RMS x 4
In stock
$339.99
Remove

Adding...
Memphis Audio SRX300.4
Street Reference 4-channel car amplifier — 50 watts RMS x 4
In stock
$199.99
Remove

Adding...
Morel MPS 4.400
4-channel car amplifier — 70 watts RMS x 4
Remove

Adding...
Focal FPX  4.400 SQ
4-channel car amplifier — 70 watts RMS x 4
Low stock
1 review

$749.99 -$150.00 Price break

$599.99
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