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The Polk Audio PA400.1 is a monoblock power amplifier, designed for use with compact subwoofers.

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The Polk Audio PA400.1 is a monoblock power amplifier, designed for use with compact subwoofers. A mid-range model in the PA series, this model can be used with all subwoofers. For a higher end amplifier, look at the PA500.4 or the PA1100.5. For a lower end model, try the PA250.1. This model is CEA-2006 Compliant, providing accurate power ratings. The PA400.1 comes with mounting hardware, including rubber isolation grommets and extra fuses. Made of anodized extruded brushed-aluminum, it weighs 9 pounds.  The end caps are made of cast aluminum and are removable and the cover plate design hides all the wiring.  The logo is in solid aluminum and comes with cobalt blue back lighting. An optional LED light bar or cooling fan can be installed. The power and ground terminals are designed to accept bare wire up to 4 AWG and use a #2 Phillips head screwdriver instead of a hex wrench.

Features
  • 14.4 Volts RMS Not Bridged at 1 kHz
    • 4 Ohms = 200 watts x 1
    • 2 Ohms = 300 watts x 1
    • 1 OHm   = 400 watts x 1
  • Signal to noise is > 98 dbA
  • Input Sensitivity Range is 150 mV to 7.5 Volts
  • Input Impedance > 20k Ohms
  • Overall Frequency Response (-3 dB Points) is 20 Hz to 250 Hz main channel
  • 2 x 25 amp fuse, power and ground reversal, thermal and short, current overdraw and low impedance protection
  • The unit is 9 lbs and is 10 1/4" high x 10 1/2" wide x 2 16/25" deep or 26.04 cm high x 26.67 cm wide x 6.71 cm deep
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