Pioneer Stage 4 PRS-A900 vs Helix Competition A4

 
Pioneer Stage 4 PRS-A900
In Stock 
$599.99
  • 100 watts RMS x 2 bridged
  • preamp inputs and outputs
  • proprietary power supply capacitors
Add to Cart
Helix Competition A4
 
 
$1,399.99
  • 395 watts RMS x 2 bridged at 2 ohms
  • Class A and AB amp technology
  • black trim
Add to Cart

Product Features

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Condition New StockNew Stock
Performance Pioneer Stage 4 PRS-A900Helix Competition A4
RMS Power Output (Wt x Channels)
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50 x 4
85 x 4
Peak Power Output (Wt x Channels)
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N/A150 x 4
Power at 2 Ohms (Wt x Channels)
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50 x 4150 x 4
Bridged Power (Wt x Channels)
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100 x 2395 x 2
Minimum Impedance Bridged
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42
Minimum Impedance Unbridged
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22
Best Frequency Response
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10-100k Hz15-20000 Hz
THD at Rated RMS Power
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1%0.009%
Signal to Noise Ratio
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108 dB100 dB
Input Voltage
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14.4v13.8v
Features Pioneer Stage 4 PRS-A900Helix Competition A4
Amplifier Class
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ABA
Low-Pass Crossover Frequency
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N/A15-7000 Hz
Low-Pass Slope (dB/octave)
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N/AN/A
High-Pass Crossover Frequency
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N/A15-7000 Hz
High-Pass Slope (dB/octave)
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N/AN/A
Bass Boost
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No0-9 dB
Bass Boost Frequency
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N/A30-120 Hz
Fan Cooled
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NoNo
Fuse Rating
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5075
Speaker Level Inputs
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NoNo
Preamp Outputs
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NoNo
Width (inches)
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1517
Height (inches)
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2-5/81-7/16
Depth (inches)
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11-1/89-1/2
Parts Warranty
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1 Year2 Years
Labor Warranty
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1 Year2 Years
  Owner's ManualOwner's Manual
 Hands-on ResearchHands-on Research
 
Pioneer Stage 4 PRS-A900
In Stock 
$599.99
Add to Cart
Helix Competition A4
 
$1,399.99
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.