Polk Audio PA D4000.4, PA D Series 4-Channel Amplifier, 800 Watts RMS

SKU: PAD4000.4
UPC: 747192121938
Dealer Price:
Sale price$235.00 Regular price$379.00
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  • Product Details
  • Product Specification
  • Review

Sleek, Compact, Powerful, and Really Cool

The PA D4000.4 amplifier is capable of bridging two full-range channels into a single full range channel with higher output power. For instance, one front and one rear channel will increase the output power from 125W per channel to 400W per channel (for a 4 ohm load). The most common hookups for the PA D4000.4 would be four full-range channels, two full-range channels and a bridged sub, or two bridged subwoofers.

PA D4000.4 Features:

Super-Eefficient Class D Design Runs much cooler than conventional amps.

Toroidal Transformers Help keep the amplifier’s sleek design under 2" tall while ensuring plenty of clean, efficient power

Protection Thermal, DC offset, reverse DC voltage and short circuit protection

Nickel-plated wire terminals & RCA connectors Ensure maximum signal transfer

Front & rear level controls Adjust the gain of the front and rear channels to match the output voltage from your head unit.

Low-pass & high-pass frequency controls Enables you to adjust crossover overlap for better blending of speakers.

Front & rear BPF, FULL, HPF switches Selects full range, high pass filter, or bandpass filter to dial in your speaker blending.

Channel mode switch (ST/4Ch) In the stereo position, the amplifier will send the same signal to front and rear channels.

Stainless steel hardware Used throughout, it won’t corrode in humid environments

Number of Channels




Peak Power Rating (Watts)

RMS Power Rating (Watts x Channels) - 4 Ohms

500 x 1

RMS Power Rating (Watts x Channels) - 2 Ohms

800 x 1

RMS Power Rating (Watts x Channels) - 1 Ohm

1200 x 1

RMS Power Rating - Bridged N/A
Minimum Impedance Unbridged (Ohms)


Minimum Impedance Bridged (Ohms)


THD at Rated RMS Power


Bulit-in Crossover - Low Pass


Built-in Crossover - High Pass
High Pass Crossover Frequency (Hz)


Low Pass Crossover Frequency (Hz)
Signal-to-Noise Ratio


Bass Boost
Bass Remote Included


Fuse Rating 120A
CEA-2006 Compliant Yes
Maximum Power Wire Gauge Size 4 Gauge
Warranty 1 Year
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