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Polk Audio 800 Watt 4-Channel Car Amplifier, Refurbished

$169.95
Was $389.99 You save $220.04!
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SKU: PAD4000.4
Brand: Polk Audio
Condition: Refurbished
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This refurbished Polk Audio 4-Channel Amplifier is an ultra-efficient car amp that's capable of bridging 2 full-range channels into a single full-range channel with a huge power output.

This little amp has an incredible sound and lots of power without the distortion. It's easy to tune and comes with lots of features, like the high and low pass filters that can be combined into a band pass filter. You'll love the sound's purity and clarity.

Wire the front channels to increase the output power from 70 watts to 200 watts per channel. Try the 4 full-range channels and a subwoofer channel or the 2 bridged full-range channel with a sub channel configuration.

Enjoy the powerful sounds that come from a sleek little amp, the Polk Audio PAD4000.4

Certified Refurbished Items

This is a used item that has been professionally restored to working order by a manufacturer or manufacturer-approved vendor. This means the product will show signs of use, such as scratches and scuffs, but has been inspected and repaired to meet manufacturer specifications and is in the original working condition. This item may or may not be in the original packaging.
  • Super-efficient class D design
  • Runs very cool
  • High-speed MOSFET
  • Toroidal transformers - keep the amplifier's sleek design under 2-inches tall while ensuring plenty of clean, efficient power
  • Protection- thermal, DC offset, reverse DC voltage and short circuit protection, and 40 amp and 30 amp ATC fuses
  • Nickel-plated wire terminals and RCA connectors for maximum signal transfer
  • Adjust the gain of the front and rear channels to match the output voltage from your head unit
  • Low-pass and high-pass frequency controls enable you to adjust crossover overlap for better blending of speakers
  • Front and rear BPF, FULL, HPF switches
  • Channel mode switch (ST/4Ch) - in the stereo position, the amplifier will send the same signal to front and rear channels
  • Stainless steel hardware won't corrode in humid conditions
  • Specifications:
    • RMS power at 14.4V watts per channel bridged - 4 ohms: 400 watts
    • RMS power at 14.4V watts per channel NOT bridged - 2 ohms: 200 watts
    • RMS power at 14.4V watts per channel NOT bridged - 4 ohms: 125 watts
    • 12 V and ground cable gauge: 4 AWG
    • Distortion at rated power: < 0.1%
    • Effective damping factor: > 100
    • Maximum sensitivity: 200 mV - 6 V dB
    • Minimum impedance bridged: 4 ohms
    • Minimum impedance not bridged: 2 ohms
    • Signal-to-noise: 105 dB
    • Total frequency response: 20 Hz - 20 kHz
    • High pass filter frequency: 20 Hz - 4 kHz (front), 20 Hz - 4 kHz (rear)
    • High pass filter slope: 12 dB/ octave
    • Low pass filter frequency: 50 Hz - 5 kHz (front)/ 50 Hz - 5 k Hz (rear)
    • Low pass filter slope: 12 dB/ octave
  • Dimensions: 6.75 x 10.9 x 1.75 inches
  • Weight: 5 pounds
  • Product warranty: 90-day warranty
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