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Frequently Compared Car Amplifiers

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Kenwood Excelon X302-4
X Series 4-channel car amplifier — 50 watts RMS x 4
In stock
$249.99
  • 150 watts RMS x 2 bridged at 4 ohms
  • variable high- and low-pass filters
  • preamp and speaker-level inputs
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Kenwood KAC-6407
4-channel car amplifier — 40 watts RMS x 4
In stock
6 reviews
$179.99
  • 130 watts RMS x 2 at 4 ohms
  • variable low-pass and switchable high-pass filters
  • preamp and speaker-level inputs
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Alpine S-A32F
S-Series 4-channel car amplifier — 55 watts RMS x 4
In stock
2 reviews
$249.95
  • 160 watts RMS x 2
  • variable low- and high-pass filters
  • selectable bass boost
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Kenwood KAC-M3004
Compact 4-channel car amplifier — 50 watts RMS x 4
New Stock
  • 150 watts x 2 bridged at 4 ohms
  • variable high- and low-pass filters
  • preamp and speaker-level inputs
       
Condition New Stock New Stock New Stock New Stock
Performance Kenwood Excelon X302-4 Kenwood KAC-6407 Alpine S-A32F Kenwood KAC-M3004
RMS Power Output (Wt x Channels) 50 x 4
40 x 4
55 x 4
50 x 4
Peak Power Output (Wt x Channels) 150 x 4 --- N/A ---
Power at 2 Ohms (Wt x Channels) 75 x 4 60 x 4 80 x 4 75 x 4
Bridged Power (Wt x Channels) 150 x 2 130 x 2 160 x 2 150 x 2
Minimum Impedance Bridged 4 4 4 4
Minimum Impedance Unbridged 2 2 2 2
Best Frequency Response 20 50k Hz 20-50k Hz 10-30k Hz 20-20k Hz
THD at Rated RMS Power 1% 1% 1% 1%
Signal to Noise Ratio 85 dB 80 dB 83 dB 87 dB
Input Voltage 14.4v 14.4v 14.4v 14.4v
Features Kenwood Excelon X302-4 Kenwood KAC-6407 Alpine S-A32F Kenwood KAC-M3004
Amplifier Class D AB D D
Low-Pass Crossover Frequency 50-200 Hz 50-200 Hz 50-400 Hz 50-200 Hz
Low-Pass Slope (dB/octave) 12 dB/octave 24 dB/octave 12 dB/octave 12 dB/octave
High-Pass Crossover Frequency 50-200 Hz 80 Hz 50-400 Hz 50-200 Hz
High-Pass Slope (dB/octave) 12 dB/octave 12 dB/octave 12 dB/octave 12 dB/octave
Bass Boost 0-18 dB No No No
Bass Boost Frequency 40 Hz N/A N/A N/A
Fan Cooled No No No No
Fuse Rating 40 30 40 30
Speaker Level Inputs Harness Harness RCA RCA
Preamp Outputs No No No No
Width (inches) 8-7/16 13-1/8 9 7-5/8
Height (inches) 2-1/8 2-5/16 2-5/16 1-13/16
Depth (inches) 5-15/16 8-1/16 8-1/16 3-7/8
Parts Warranty 2 Years 1 Year 1 Year 1 Year
Labor Warranty 2 Years 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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Kenwood Excelon X302-4
X Series 4-channel car amplifier — 50 watts RMS x 4
In stock
$249.99
Remove

Adding...
Kenwood KAC-6407
4-channel car amplifier — 40 watts RMS x 4
In stock
6 reviews
$179.99
Remove

Adding...
Alpine S-A32F
S-Series 4-channel car amplifier — 55 watts RMS x 4
In stock
2 reviews
$249.95
Remove

Adding...
Kenwood KAC-M3004
Compact 4-channel car amplifier — 50 watts RMS x 4
New Stock
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