Polk Audio CSW Series Dedicated Digital Power Amplifier-SWA500

Model #: SWA500
Polk Audio
At a Glance

The BASH amplifier combines the fidelity of conventional class A/B amplifiers with the efficiency of class D amplifiers. The bottom line is high power, and cool, reliable operation with precise definition and low distortion. Plug-in data cards for each subwoofer, called SPEX cards, preprogram equalization, infrasonic filter characteristics and power output that best matches the subwoofer being used. Each SPEX card also custom install subwoofers/amp has specific power control circuitry tailored to each subwoofer’s requirements for an even greater level of reliability.

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Get to know this product.

  • Class D digital design delivers huge power and runs cool for superb long-term reliability
  • 500 Watts into 4 Ohms at <0.01% THD
  • Powers up to two CSW subs of the same model
  • Front panel low pass filter and level adjustment knobs make "tweaking" a snap.
  • Plug in SPEX circuit cards (supplied) optimize the amplifier to match the specific subwoofer model being used
  • Custom frequency shaping (programmed into SPEX card) for the deepest, most accurate bass perfromance
Useful Documents


Coaxial Digital Audio Inputs:1
Speaker Connectors:Posts
Analog Audio(RCA) Output:1


Total Pieces1


Included Accessories(2) SPEX Cards - One for each of the Polk subwoofers this device supports


Electronics Warranty3 years
Original Purchaser OnlyYes

Shipping Cartons

Carton 117" (43.18 cm) h x 21.5" (54.61 cm) w x 21.5" (54.61 cm) d - 14 lbs (6.35 kg)


Total Pieces1
Height3.5" (8.89 cm)
Width17" (43.18 cm)
Depth12.625" (32.07 cm)

Internal Amplifier

Power500 watts
Power - One Channel Driven250 watts
Power - Two Channel Driven500 watts
Amplifier ClassHybrid Class D


Audio InputsLFE (Unfiltered); Pair (L/R) Analog RCA
Speaker Inputs(2) Pair of Binding Posts - Gold Plated


Audio OutputsPair (L/R) Analog RCA
Speaker Outputs(2) Pair of Binding Posts - Gold Plated


US Voltage120 volts A/C

Misc. Specs

Depth (in.)12.63
Height (in.)3.5
Width (in.)17
Analog Audio(RCA) Input1
Watts per Channel (Watts)500
Product Weight17
WarningProposition 65 Warning for California Residents