Alpine KTP-445U Power Pack vs Alpine PDX-F6

 
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
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Alpine PDX-F6
In Stock 
$749.99
  • 300 watts RMS x 2 bridged
  • Class-D design
  • stackable installation design with front-mounted controls
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Product Features

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Condition New StockNew Stock
Performance Alpine KTP-445U Power PackAlpine PDX-F6
RMS Power Output (Wt x Channels)
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45 x 4
150 x 4
Peak Power Output (Wt x Channels)
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90 x 4N/A
Power at 2 Ohms (Wt x Channels)
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45 x 4150 x 4
Bridged Power (Wt x Channels)
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90 x 2300 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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20-20k Hz5-100k Hz
THD at Rated RMS Power
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1%1%
Signal to Noise Ratio
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82 dB94 dB
Input Voltage
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14.4v14.4v
Features Alpine KTP-445U Power PackAlpine PDX-F6
Amplifier Class
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DD
Low-Pass Crossover Frequency
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N/A30-400 Hz
Low-Pass Slope (dB/octave)
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N/A12 dB/oct
High-Pass Crossover Frequency
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60, 80, 120Hz30-400 Hz
High-Pass Slope (dB/octave)
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12 dB/oct12 dB/oct
Bass Boost
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NoNo
Bass Boost Frequency
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N/AN/A
Fan Cooled
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NoNo
Fuse Rating
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1560
Speaker Level Inputs
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HarnessNo
Preamp Outputs
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NoNo
Width (inches)
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7-7/810-1/8
Height (inches)
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1-1/22
Depth (inches)
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2-9/168-9/16
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
 
Alpine KTP-445U Power Pack
In Stock 
$149.99
Add to Cart
Alpine PDX-F6
In Stock 
$749.99
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.