1.888.955.6000
 
 

Infinity Reference 475a vs Rockford Fosgate R500X1D

 
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
Add to Cart
Rockford Fosgate R500X1D
In Stock 
$199.99
  • 300 watts RMS x 1 at 4 ohms
  • variable low-pass filter and bass boost
  • speaker-level inputs and preamp outputs
Add to Cart

Product Features

Hide similar features
Condition New StockNew Stock
Performance Infinity Reference 475aRockford Fosgate R500X1D
RMS Power Output (Wt x Channels)
Loading...
75 x 4
300 x 1
Peak Power Output (Wt x Channels)
Loading...
117 x 4N/A
Power at 2 Ohms (Wt x Channels)
Loading...
90 x 4500 x 1
Bridged Power (Wt x Channels)
Loading...
180 x 2N/A
Minimum Impedance Bridged
Loading...
4N/A
Minimum Impedance Unbridged
Loading...
22
Best Frequency Response
Loading...
10-100k Hz20-250 Hz
THD at Rated RMS Power
Loading...
1%1%
Signal to Noise Ratio
Loading...
85 dB80 dB
Input Voltage
Loading...
14.4v14.4v
Features Infinity Reference 475aRockford Fosgate R500X1D
Amplifier Class
Loading...
ABD
Low-Pass Crossover Frequency
Loading...
32-320 Hz50-250 Hz
Low-Pass Slope (dB/octave)
Loading...
12 dB12 dB/octave
High-Pass Crossover Frequency
Loading...
32-320 HzN/A
High-Pass Slope (dB/octave)
Loading...
12 dBN/A
Bass Boost
Loading...
0-6 dB0-12 dB
Bass Boost Frequency
Loading...
50 Hz45 Hz
Fan Cooled
Loading...
NoNo
Fuse Rating
Loading...
7050
Speaker Level Inputs
Loading...
NoHarness
Preamp Outputs
Loading...
1 pair1 pair
Width (inches)
Loading...
98-1/2
Height (inches)
Loading...
2-11/162
Depth (inches)
Loading...
14-3/47-3/8
Parts Warranty
Loading...
1 Year1 Year
Labor Warranty
Loading...
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 R500X1D
In Stock 
$199.99
Add to Cart

Video: Car Amplifier PowerWe describe the basics of deciding how much power an amplifier should have when you're trying to match it to your speakers or subwoofers.

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.