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Polk Audio PA660.4 600W 4CH Car Amplifier

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  • Polk Audio PA660 600w 4CH Car Amplifier
  • Polk Audio PA660 600w 4CH Car Amplifier
  • Polk Audio PA660 600w 4CH Car Amplifier

List Price: $449.00 On Sale: $289.85 (GST Included) (You save 35.45%)

SKU: PA660

Expected Soon

$9.95 Flat Rate Generally ships out in 24 to 48 hours.


How To Build A Bundle

The following accessories can be bundled with your purchase by checking the green ‘Include with Product’ button. You can add as many items to your order as you require and then simply ‘Add to Cart’ to complete order.

Product Info

Product Info

Please Note: This Polk Car Audio product is part of our Clearance and is only available in limited quantities. This is a limited offer and is available only while stocks last. This product may have already sold out and there are no rain checks offered on clearance items.

Check out the Polk Audio PA660 4 Channel Car Amplifier's Key Features
(Polk PA660)

  • 12 Month Polk Audio Australian Warranty
  • Peace of Mind Purchase Guarantee (bottom of page)
  • 4 Channel Car Amplifier
  • 75 watts x 4 RMS
  • Low pass filter
  • RCA output for daisy chaining other amplifiers


The PA660.4 is a four-channel class A/B amplifier with built-in fully variable low-pass crossover. Equipped with remote gain, the PA660.4 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.


  • Speaker level input connects
  • High-speed MOSFET switching power supply
  • High current bipolar output transistors pump maximum voltage
  • Double layer fiberglass epoxy printed circuit boards for more rigidity
  • 6-way Smart System Protection (SSP) circuits
  • Selectable 12 dB/octave high or low-pass crossover
  • Switchable 3-position bass boost (0dB, 6dB, 12dB)
  • Variable input gain
  • RCA outputs for easy daisy chaining of other amplifiers
  • Multi-color status LED gives instant information on amplifier operation

Polk Audio - The Brand

Since the founding of Polk in 1972, it’s been Polk's mission to craft high quality, great sounding speakers that are accessible to everyone. For the people of Polk, designing and building authentic audio solutions is their true passion.

Today, Polk remains an American success story. Polk is still proudly based in Baltimore, right where they started. Their engineers and designers now hold more than 65 patents for pioneering advances in audio design and technology. These innovations have influenced the audio industry many times over.

Peace of Mind Purchase Guarantee & Declaration of Warranty
This product is supplied directly via Polk Audio Australia and enjoys the FULL benefits of the 'POLK AUDIO - 12 MONTH AUSTRALIAN WARRANTY'. (You may also be entitled to other consumer warranties as provided by the Australian Consumer Guarantee and these entitlements are not limited by this warranty). Should this product fail, you have the option of contacting the manufacturer / supplier directly.

We are a FULLY AUTHORISED Australian retailer for Polk Audio Australia.

This product will be shipped from our Sydney Warehouse. This product is NOT DROP SHIPPED from overseas.

Tech Specs

Technical Specifications

Power Output

  • 75 watts x 4 RMS power at 4 ohms
  • 100 watts x 4 RMS power at 2 ohms
  • Maximum power output is 600 watts
  • Total Harmonic Distortion is rated at 0.9%

Signal to Noise Ratio

  • 80 db for full range channels

Input Sensitivity

  • RCA Input .2 to 4 volts
  • Speaker Level Input .5 to 10 volts

Cross Over

  • Variable High and Low Pass Filter




In The Box

What's Included?

  • 1 x Polk Audio PA660 600W 4CH Car Amplifier

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