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Sorry! Polk Audio - PA 660.4 - 4 Channel Amplifier is sold out.

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Polk Audio - PA 660.4 - 4 Channel Amplifier

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Rs  17,808
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  • Multi-Colour Status LED
  • Capable Of Two-Channel Operation
  • Double Layer Fiberglass Epoxy Printed Circuit Boards
  • 6-Way Smart System Protection (SSp) Circuits
  • RCA Outputs
  • Variable Bass Boost
  • High-Speed MOSFET Switching Power Supply
  • Can't find your Car Audio Systems,
  • Suitable For All Car Make Models
  • SUPC: 1803959


Total Frequency Response 10Hz-30kHz
Signal-to-noise (Referenced to rated power) 75 dBA
Distortion at Rated Power 0.90%
Minimum Impedance Bridged 4 ohms
Minimum Impedance Not Bridged 2 ohms
Channels 4
Channel Notes Bridgeable Class AB MOSFET
Total Dynamic Power 600 watts
Bass Boost Characteristics Variable (0dB to +8dB) Hz
12V & Ground Cable Gauge 4 AWG
Filter Slope 12dB/oct
Effective Damping Factor >100
Max Sensitivity 250mV-5V (rear) dB
Product Weight (each) 7.60 pounds
Height 2inch (5.08cm)
Width 13 1/4inch (33.66cm)
Depth 8 1/8inch (20.64cm)
Period 1 Year Manufacturer Warranty


The PA 660 4 Channel Amp, 75 X 4 Watts is the perfect combination of rock solid reliability, advanced looks and ultra-high performance. It is capable of two-channel operation with a maximum power of 600 Watts when both the front and rear bridged channels are driven into 4 ohms speaker loads. The 4-channel, dual bridge-mono (2-channel), or dual simultaneous stereo/mono operation provide a variety of configurations and setups: 4-channel for front and rear speakers; 2 speakers and a sub; 2 subwoofers. The High-speed MOSFET switching power supply and high current bipolar output transistors pump maximum voltage and high current to your speakers or subwoofers. The variable input gain optimizes match with different signal sources.

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