Infinity Reference 475a vs Rockford Fosgate Punch PBR300X2

 
Infinity Reference 475a
In Stock 
$149.99
  • 90 watts RMS x 4 at 2 ohms
  • 180 watts RMS x 2 in bridged mode
  • variable high- and low-pass filters
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Rockford Fosgate Punch PBR300X2
Out of Stock 
$279.99
  • 300 watts RMS x 1 bridged output at 4 ohms (4-ohm stable in bridged mode)
  • preamp and speaker-level inputs
  • dimensions: 6-3/4"W x 1-9/16"H x 4-1/4"D
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Product Features

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Condition New StockNew Stock
Performance Infinity Reference 475aRockford Fosgate Punch PBR300X2
RMS Power Output (Wt x Channels)
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75 x 4
100 x 2
Peak Power Output (Wt x Channels)
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117 x 4---
Power at 2 Ohms (Wt x Channels)
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90 x 4150 x 2
Bridged Power (Wt x Channels)
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180 x 2300 x 1
Minimum Impedance Bridged
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44
Minimum Impedance Unbridged
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22
Best Frequency Response
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10-100k Hz20-20k Hz
THD at Rated RMS Power
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1%1%
Signal to Noise Ratio
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85 dB80 dB
Input Voltage
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14.4v14.4v
Features Infinity Reference 475aRockford Fosgate Punch PBR300X2
Amplifier Class
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ABBR
Low-Pass Crossover Frequency
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32-320 Hz50-500 Hz
Low-Pass Slope (dB/octave)
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12 dB12 dB/oct
High-Pass Crossover Frequency
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32-320 Hz50-500 Hz
High-Pass Slope (dB/octave)
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12 dB12 dB/oct
Bass Boost
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0-6 dBOptional (0-18 dB)
Bass Boost Frequency
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50 Hz45 Hz
Fan Cooled
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NoNo
Fuse Rating
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7030
Speaker Level Inputs
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NoRCA
Preamp Outputs
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1 pairNo
Width (inches)
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96-3/4
Height (inches)
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2-11/161-9/16
Depth (inches)
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14-3/44-1/4
Parts Warranty
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1 Year1 Year
Labor Warranty
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1 Year1 Year
  Owner's ManualOwner's Manual
 Hands-on ResearchHands-on Research
 
Infinity Reference 475a
In Stock 
$149.99
Add to Cart
Rockford Fosgate Punch PBR300X2
Out of Stock 
$279.99
Add to Cart

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Video: Car Amplifier ChannelsOne of the first steps in choosing an amplifier for your car audio system is to decide how you intend to use the amplifier, and thus how many channels it should have. This short video gives you a quick overview to help answer that question.