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Alpine KTA-450 Power Pack Compact 4-channel Car Amplifier * 50 Watts RMS X 4

Alpine KTA-450 Power Pack Compact 4-channel Car Amplifier * 50 Watts RMS X 4


SKU: KTA-450
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Big Power small package. Alpine’s Power Pack 2.0 is here! In a small package, the Alpine KTA-450 Power Pack Amplifier uses Alpine’s patented DPP technology. Seamlessly add one of these amps to an Alpine Double DIN short chassis radio by attaching it to the back of it.

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SKU: KTA-450


sku: KTA-450

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Key Features:

  • 4-channel car amplifier
    • 50 watts RMS x 4 at 4 ohms (45 watts RMS x 4 at 2 ohms)
    • 100 watts RMS x 2 bridged at 4 ohms
  • CTA-2006 compliant
  • Dynamic Peak Power (DPP) technology adds a burst of power when needed
  • selectable high-pass filters (60, 80, 120 Hz at 12 dB/octave) on front and rear channels
  • preamp and speaker-level inputs
  • selectable 2- or 4-channel input
  • PowerStack bracket included for mounting amp behind Alpine iLX-W650 (#500ILXW650) or iLX-407 (#500ILX407) digital multimedia receiver
  • wiring, hardware, and fuse not included with amplifier
    • 12-gauge power and ground leads and a 20A fuse recommended
  • dimensions: 7″W x 1-3/8″H x 3-9/16″D
  • warranty: 1 year

Features & specs

RMS Power Output (Watts x Channels) 50 x 4
Peak Power Output (Watts x Channels) 100 x 4
Power at 2 Ohms (Watts x Channels) 45 x 4
Bridged Power (Watts x Channels) 100 x 2
Minimum Impedance Bridged 4
Minimum Impedance Unbridged 2
Minimum Impedance 2
Best Frequency Response 15-50k Hz
THD at Rated RMS Power 1%
Signal to Noise Ratio 82 dB
Input Voltage 14.4v
Amplifier Class D
Low-Pass Crossover Frequency N/A
Low-Pass Slope (dB/octave) N/A
High-Pass Crossover Frequency Off, 60, 80, 120Hz
High-Pass Slope (dB/octave) 12 dB/octave
Bass Boost No
Bass Boost Frequency N/A
Fan Cooled No
Fuse Rating 20
Speaker Level Inputs RCA
Preamp Outputs No
Width (inches) 7
Height (inches) 1-3/8
Depth (inches) 3-9/16
Parts Warranty 1 Year
Labor Warranty 1 Year


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Additional information

Amplifier Class

Bass Knob

Sold Separate



4 Channel

Minimum Impedance (ohms)

2 Ohms

Compact Design

Power: RMS Per Channel