JBL GTO-504EZ vs Alpine KTP-445U Power Pack

 
JBL GTO-504EZ
Low Stock 
$199.99
  • 150 watts RMS x 2 bridged at 4 ohms
  • Simple Setup System with test tone CD for perfect gain setting
  • preamp outputs and speaker-level inputs
Add to Cart
Alpine KTP-445U Power Pack
In Stock 
$149.99
  • runs off same power circuit as receiver (must be 15-amp or more)
  • compact amplifier with universal plug for in-dash receivers
  • 45 watts x 4 at 4 ohms
Add to Cart

Product Features

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Condition New StockNew Stock
Performance JBL GTO-504EZAlpine KTP-445U Power Pack
RMS Power Output (Wt x Channels)
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50 x 4
45 x 4
Peak Power Output (Wt x Channels)
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160 x 490 x 4
Power at 2 Ohms (Wt x Channels)
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75 x 445 x 4
Bridged Power (Wt x Channels)
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150 x 290 x 2
Minimum Impedance Bridged
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44
Minimum Impedance Unbridged
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22
Best Frequency Response
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20-23000 Hz20-20k Hz
THD at Rated RMS Power
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1%1%
Signal to Noise Ratio
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85 dB82 dB
Input Voltage
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14.4v14.4v
Features JBL GTO-504EZAlpine KTP-445U Power Pack
Amplifier Class
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ABD
Low-Pass Crossover Frequency
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40-220 HzN/A
Low-Pass Slope (dB/octave)
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12 dB/octN/A
High-Pass Crossover Frequency
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40-220 Hz60, 80, 120Hz
High-Pass Slope (dB/octave)
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12 dB/oct12 dB/oct
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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4015
Speaker Level Inputs
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RCAHarness
Preamp Outputs
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1 pairNo
Width (inches)
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8-7/167-7/8
Height (inches)
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2-5/81-1/2
Depth (inches)
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9-11/162-9/16
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
 
JBL GTO-504EZ
Low Stock 
$199.99
Add to Cart
Alpine KTP-445U Power Pack
In Stock 
$149.99
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.