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http://www.polkaudio.com
500.4

  • 4-channel, dual bridge-mono (2-channel) power amplifier
  • Power handling: 125 watts x 4 (2 ohm) continuous power, 250 x 4 (2 ohm) dynamic power or 250 watts x 2 (4 ohm) continuous power
  • Double layer fiberglass epoxy printed circuit boards
  • 6-way smart system protection (SSP) circuits
  • High-speed MOSFET switching power supply

    250.2
  • 2-channel, stereo, bridge-mono, or simultaneous stereo/mono operation power amplifier
  • Power handling: 90 watts x 2 (2 ohm) continuous power, 125 x 2 (2 ohm) dynamic power, or 250 x 1 (4 ohm) continuous power
  • Double layer fiberglass epoxy printed circuit boards
  • 6-way smart system protection (SSP) circuits
  • High-speed MOSFET switching power supply

    600.1
  • Monoblock amplifier for subwoofer use
  • Power handling: 600 watts x 1 (1 ohm), 400 watts x 1 (2 ohm) and 300 watts x 1 (4 ohm) continuous power, 1200 watts x 1 (1 ohm) dynamic power
  • Double layer fiberglass epoxy printed circuit boards
  • 6-way smart system protection (SSP) circuits
  • High-speed MOSFET switching power supply

    1200.1
  • Powerful Performance
    • Monoblock amplifier for subwoofer use.
    • 1200 watts x 1 (1 ohm), 800 watts x 1 (2 ohm) and 400 watts x 1 (4 ohm) continuous power. CEA-2006 Compliant specifications for true, accurate power ratings.
    • 2400 watts x 1 (1 ohm) dynamic power.
    • 1 ohm stable design can drive even the most demanding subwoofers.
    • Super Efficient Class D Pulse Width Modulation amplifier design. Draws less power and runs cooler so you won¡¯t heat up the inside of your vehicle or make the headlights dim.
    • High-speed MOSFET switching power supply and high current Bipolar Output Transistors pump maximum voltage and high current to your speakers or subwoofers.
    • Double Layer Fiberglass Epoxy Printed Circuit Boards for more rigidity and less shrinkage, with plated through-holes instead of jumpers, for twice the amount of component contact area. Efficient layout packs more circuitry, with tighter component tolerances, into a smaller circuit board for a smaller overall amp footprint.
    • 6-Way Smart System Protection (SSP) circuits: Power and Ground-Reversal Protection, Thermal and Short Protection, Current Overdraw and Low Impedance Protection circuits with auto-Standby Mode ensure safety, reliability and durability.
    Great Looks and Functionality
    • Anodized extruded brushed-aluminum cover for maximum heat dissipation and great looks!
    • Cast aluminum textured end caps for optimized heat dissipation and hiding of connectors. Solid aluminum logo and model panel back lit in cobalt blue.
    • Adjustable 12 dB/octave low-pass crossover (30-250 Hz).
    • Switchable 8 dB bass boost at 40Hz for extra bass thump.
    • Variable input gain optimizes match with different signal sources (250mv to 7.5V).
    • Switchable 24 dB/octave subsonic filter protects ported subwoofers.
    • Switchable 180¡Æ phase inversion for easy sub to main integration or external bridge mono operation.
    • Mounting hardware with rubber isolation grommets and extra fuses included.
    • Light Bar/Fan Output- Connect an optional LED light bar or cooling fan for custom installations.
    • Multi-Color Status LED gives instant information on amplifier operation.
    • Remote Subwoofer Level Adjuster included.
    • Master/Slave switch and RCA Outputs for easy daisy chaining of other amplifiers.
    • Master/Slave switch allows parallel operation- master amp¡¯s gain and crossover settings will be duplicated in ¡°slave¡± amplifiers for consistent, repeatable settings.
    • Power and ground terminals accept bare wire up to 4 AWG. Terminals use standard #2 Phillips head screwdriver- no more hex wrenches to lose or strip!
    • Externally Bridgeable with a second PA1200.1- for even more power! Bridged power is 2400 watts (2 ohm) continuous and 4800 watts dynamic power!
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