JL Audio JX250/1 vs Alpine KTP-445A Power Pack

 
JL Audio JX250/1
In Stock 
$199.99
  • 175 watts RMS x 1 at 4 ohms
  • variable low-pass filter (50-200 Hz, 12 dB/octave)
  • speaker-level inputs
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Alpine KTP-445A Power Pack
In Stock 
$129.99
  • dimensions: 7-7/8"W x 1-1/2"H x 2-9/16"D
  • compact plug-and-play amplifier for Alpine in-dash receivers
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Product Features

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Condition New StockNew Stock
Performance JL Audio JX250/1Alpine KTP-445A Power Pack
RMS Power Output (Wt x Channels)
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175 x 1
45 x 4
Peak Power Output (Wt x Channels)
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N/A90 x 4
Power at 2 Ohms (Wt x Channels)
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250 x 1N/A
Bridged Power (Wt x Channels)
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N/AN/A
Minimum Impedance Bridged
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N/AN/A
Minimum Impedance Unbridged
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22
Best Frequency Response
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20-150 Hz20-20k Hz
THD at Rated RMS Power
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1%1%
Signal to Noise Ratio
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87 dB84 dB
Input Voltage
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14.4v14.4v
Features JL Audio JX250/1Alpine KTP-445A Power Pack
Amplifier Class
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ABD
Low-Pass Crossover Frequency
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50-200 HzN/A
Low-Pass Slope (dB/octave)
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12 dB/octaveN/A
High-Pass Crossover Frequency
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N/AN/A
High-Pass Slope (dB/octave)
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N/AN/A
Bass Boost
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0-12 dBNo
Bass Boost Frequency
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45 HzN/A
Fan Cooled
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NoNo
Fuse Rating
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3015
Speaker Level Inputs
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HarnessHarness
Preamp Outputs
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1 pairNo
Width (inches)
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11-5/167-7/8
Height (inches)
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2-1/81-1/2
Depth (inches)
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7-3/42-9/16
Parts Warranty
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2 Years1 Year
Labor Warranty
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2 Years1 Year
  Owner's ManualOwner's Manual
 Hands-on ResearchHands-on Research
 
JL Audio JX250/1
In Stock 
$199.99
Add to Cart
Alpine KTP-445A Power Pack
In Stock 
$129.99
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.