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Polk Audio PA D4000.4 (PAD4000.4)

800W RMS PA D Series Class-D 4-Channel Car Amplifier

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Polk Audio PA D4000.4 (PAD4000.4)

800W RMS PA D Series Class-D 4-Channel Car Amplifier

$199.95

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Belva BAK44 4-Channel 4 Gauge Amplifier Installation Kit

Complete 4-Channel CCA 4 Gauge Amp Kit with RCA Cables and Speaker Wire

$29.99

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NVX Universal Remote Level Bass Control

Controls bass level and frequency via RCA/Interconnect connectors on any amp.

$7.99

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Save 25% on a 4 Gauge Amp Kit with Purchase!

You will need an amp kit to install your amp, and the TruConnex TC4KIT-44B by Metra is the perfect kit for this amp. For a limited time, when you click "Add Both to Cart", you'll receive 25% off the amp kit. This offer cannot be combined with any other coupons or offers.

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Polk Audio PA D4000.4 (PAD4000.4)

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Special Price $22.49 ($29.99 if purchased separately)

TruConnex TC4KIT-44B by Metra

• 4 Gauge Power Amplifier Installation Kit
• Ideal for Systems Up to 900 Watts
• Premium Power and Ground Wire Provides Optimal Power Transfer
• 4-Channel Twisted RCA Cables

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Polk Audio PA D4000.4

Taking the Polk Audio PA D Series Into the Digital Era

The PA D4000.4 is Polk Audio's new high-efficient digital 4-channel amplifier. This amplifier is perfect for providing the correct amount of power to a complete four speaker upgrade to your car audio system. The ability to bridge channels will give you more options on amplifying other applications such as subwoofers. This 4-channel can do amplify anything from high-end speakers to 4 entry level subwoofers.

How does Polk Audio improve on their already popular and very well known PA D series amplifiers? With technology advances, Polk Audio has taken their PA D series into the digital amplification arena. This means a smaller foot print, a super-efficient design which allows for lower power consumption and does away with a larger power supply. This allows the new digital PA D series amplifiers to run far more efficiently with lower distortion and cutting or clipping. The new PA D Digital series amplifiers are available in a monoblock, 2-channel, 4-channel, and 5-channel configuration making them accessible for any application. With a height of under 2 inches for all four configurations, these amplifiers also offer a mounting convenience making them practically perfect for any vehicle. All four configurations feature a 4-way protection circuitry and stainless steel hardware that will not corrode, giving the amplifier longevity and a sleek and stylish look. Polk Audio is a known and trusted company and with these new PA D Digital series amplifiers not only are you getting the high Polk Audio quality, you are now getting the quality in a very high and efficient digital range.

Product Features:


 

 
  • PA D Series 4-Channel Class D Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 125 watts x 4 chan.
    • 2 ohms: 200 watts x 4 chan.
    • Bridged, 4 ohms: 400 watts x 2 chan.
  • CEA-2006 Compliant Amplifier
  • Pulse Width Modulated MOSFET power supply
  • LED power (blue) and protect (red) indicators
  • Soft start turn-on
  • 4, 3 and 2 Channel Operation
  • 4-way protection circuitry (thermal, overload, reverse polarity & speaker short protection)
  • Heavy duty aluminum alloy heat-sink
  • Nickel-plated RCA level inputs
  • Nickel-plated screw terminals
  • Input sensitivity: 200mV - 6V
  • Frequency Response: 20 - 20,000 Hz
  • Damping Factor: >100
  • Total Harmonic Distortion (THD): <0.1%
  • Signal to Noise Ration: 105 dBA
  • Selectable crossover modes: LPF / FULL / HPF , with 10x Multiplier
  • Variable high-pass filter: 20 - 400 Hz (10x Capable), 12 dB/octave
  • Variable low-pass filter: 50 - 500 Hz (10x Capable), 12 dB/octave
  • Fuse Rating: 40A x 1 + 35A x 1
  • Supply Voltage: 10V - 16V
  • 12 AWG Speaker Connections
  • 4 gauge OFC power and ground wiring is recommended for installation. Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier. Click Here for our contact information.
  • Dimensions: 6-3/4"W x 10-15/16"L x 1-13/16"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty


Check out the Polk Audio PA D4000.4 Owner's Manual

Important Note: Early versions of this amplifier included a "Terminal Adapter". As of 2015, Polk Audio has confirmed that they are no longer sending this adapter with their amplifier, albeit referenced in the user manual. We apologize for any inconvenience, and suggest browsing our selection of "Gauge Adapters" if you wish to use larger than recommended wiring. Thank you!

Power Specifications - Full Range Channels

RMS Power @ 4 ohms

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 4 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

125 watts x 4 channels
RMS Power @ 2 ohms

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 2 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

200 watts x 4 channels
RMS Power @ 1 ohm

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 1 ohm, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

Not Stable
Bridged RMS Power

Bridging refers to combining two channels on an amplifier to create one channel with double the voltage and an increased power output. A 2-channel amplifier will bridge down to 1-channel and a 4-channel amplifier can bridge to create 2-channels. An amplifier is most commonly bridged to drive a subwoofer.

Remember, once you bridge two channels down to one its final impedance will be 4 ohms unless otherwise specified. This rating lists the RMS power created once an amplifier is bridged.

400 watts x 2 channels

Amplifier Specifications

Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.

D
Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
4
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.

800 watts
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
4 AWG
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
2 ohms
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
4 ohms
THD at Rated RMS Power
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
<0.1%
Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
No
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
No
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
The high-pass crossover frequency can be a fixed crossover point or a variable crossover range. A variable high-pass crossover allows you to select a specific crossover point which allows frequencies above the set crossover point to pass, while making frequencies below the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

20 - 4000 Hz
Low-Pass Crossover Frequency
The low-pass crossover frequency is typically used for subwoofers. It can be a fixed crossover point or a variable crossover range. A variable low-pass crossover allows you to select a specific crossover point which allows frequencies below the set crossover point to pass, while making frequencies above the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

50 - 5000 Hz
Signal-to-Noise Ratio
This spec compares the strength of the signal to the level of background noise. A higher value indicates less background noise.
105 dB
Bass/Gain Remote
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
No
Fan Cooled
A great feature to have if an amp generates a large amount of heat. Cooling fans can help regulate the temperature to prevent the amp from overheating (burning).
No
Fuse Rating
The amperage and the number of fuse(s) an amp requires.
40A x 1 and 35A X 1
Strappable
Some amplifiers can be "strapped" together in order to increase the output of a single audio channel. These amplifiers feature RCA preamp outputs, allowing you to pass the signal directly from one amp to the other to ensure consistency.
No
CEA-2006 Compliant
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.

Yes
Sonic Certified Amplifier
Sonic Certified amplifiers have been tested by the experts at Sonic Electronix to meet or exceed the wattage ratings provided by the manufacturer. If this is marked as Yes, then you can trust the wattage ratings. If marked as No, then we have tested the amplifier and it did not meet the advertised wattage ratings. If marked as Not Tested, then the Sonic Electronix experts have not yet been able to test the amp.
Not Tested
Hi-Res Audio Compatible
This feature refers to if the product is capable of Hi-Res Audio (HRA) playback.

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
88%
4 Star
13%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.5
Value
4.9
Features
4.9
Design
5.0
Usability
4.8
espen

Norway

Overall
Durability
Value
Features
Design
Usability
great product!

October 24, 2012

I bought this item 6 months ago and cant complain! I cant say anything about the durability other than it still works great. All the power and settings you need, in one small amp:) love it! Thanks Sonic.

29 of 34 found this helpful

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Jason

greenville, SC

Overall
Durability
Value
Features
Design
Usability
Excellent little amp!

July 1, 2012

I picked this up about 6 months ago, to go along with the PA D1000.1 sub amp.

Pros: it's tiny, powerful and very clean sounding. Nice looking too.

Con: It's a bit more expensive than it's competitors.

If you have the money, do it. I love this thing!

23 of 26 found this helpful

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Pierre

Canada

Overall
Durability
Value
Features
Design
Usability
This tiny amp will kick your butt!

June 26, 2012

Clean design, compact dimensions, powerful and clean sound. I'm happy with this purchase.

24 of 28 found this helpful

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JManz

Denver, CO

Overall
Durability
Value
Features
Design
Usability
WOW!

September 15, 2011

Just received my amplifier today and i am just downright impressed by this amp. The size of the 4000.4 is just amazing considering how much power it produces. Hooked it up to some infinity 6x9's and pioneer 4x6's and thought i was going to blow them! The sound was crystal clear, got insanely loud, and sounded a ton better than my old Hifonics 4ch. Another great addition is the 0 gauge power and ground adapters. Great to give this power hungry amp the power it needs. Was skeptical at first because i never bought anything Polk but in the end NO REGRETS at all! If 50 watts rms is not enough for your speakers, upgrade to this amp just be sure you have quality speakers.

24 of 30 found this helpful

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Justin

Granger, IN

Overall
Durability
Value
Features
Design
Usability
Great Amp and Service

August 14, 2015

This amp pushes my JL mx 880's very well. The amp does a great job and no issues what's so ever. Most of all sonic electronic is a great place to buy from.

8 of 10 found this helpful

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John

Sayreville, NJ

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
Good little amp

August 7, 2015

Upgraded from alpine f240 amp this polk blows it away. Very small and pretty powerful so far

8 of 10 found this helpful

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Robert

Mountain Home

Overall
Durability
Value
Features
Design
Usability
Polk PA D4000.4

October 14, 2015

Love this amp always been Alpine fan but this is by far the best amp I've owned very very loud and clean pushing 4 polk 6.5 and a polk 10" sub
Very easy to hide also.

6 of 7 found this helpful

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GenesisJewce

Canada

Overall
Durability
Value
Features
Design
Usability
Money well spenr

July 5, 2015

Always been a fan of Polk, grew up with it and its also my home theatre system. After seeing thr PAD4000.4 i thought this would bbe a nice addition to my car stereo system. Install was easy and its really loud and clear. Love it!

8 of 11 found this helpful

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Harold

New Albany, MS

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
POLK PA D4000.4

January 8, 2016

Bought this amp to go in my 2010 Tacoma Reg cab, Polk db6501's in the doors & Polk MM1040 behind the seat. All I can say is AWESOME.
Loud, clean music! Couldn't be happier. If your looking for a 4 ch amp, to use as a 3 ch, as I did, this works very well. Only gave it 4 stars in Durability because it's only been in use , a few months. Time will tell.

2 of 2 found this helpful

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Erik

Durham, NC

Overall
Durability
Value
Features
Design
Usability
Very compact for its size

September 19, 2016

I installed 2 Amps on my boat to power the Polk speakers. very easy installation. Very compact. Very easy to adjust and very clear instructions.

0 of 0 found this helpful

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Ray

Bellingham Wa.

Overall
Durability
Value
Features
Design
Usability
A big bang for your buck!

September 19, 2016

I recently in stalled hertz components in my front doors and hertz coaxials in the rear doors and looking for a powerful clean amp to push these speakers without taking the last of my money.This polk amp was the one I needed.It's s/n ratio low distortion really pushes the hertz really well I'm very happy

0 of 0 found this helpful

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catmandu

miami fl

Overall
Durability
Value
Features
Design
Usability
load and clear

August 12, 2016

I've tried a couple of other brands at similar cost and I can honestly say the difference is most noticeable.I think Polk products sound great and give you tremendous value for your $.

0 of 0 found this helpful

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Pipeliner1

Lake Ozark, MO.

Overall
Durability
Value
Features
Design
Usability
PAD 4000

August 12, 2016

I ordered this amp and received it about 30 days ago for my boat. It been sitting on the shelf ready to install since. I opened it up when I received it and it appears to be quality product. That's about all I can tell you since I have been traveling for work since shortly after its arrival. The reviews I read before buying were overall good. I hope to get it installed soon, then I can give it a real review but I keep getting emails to review it now. Hope this helps.

0 of 0 found this helpful

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Lance Loader

San Diego, CA

Overall
Durability
Value
Features
Design
Usability
So far so good!

June 24, 2016

Bought this for our river boat, it's installed in the bathroom(no moisture). Ran it in 123 degree temp full volume for an hour, never shut down and was not much above ambient temps. Very impressed...

0 of 0 found this helpful

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Kenny

Monroe, GA

Overall
Durability
Value
Features
Design
Usability
Sweet amp

June 2, 2016

Very pleased with this amp. I have 2 sets of 6.75 mobile monitor components running off of it. These speakers are 2.7 ohms each channel and this amp has no problems pushing them. Clean and crisp sound. Cannot ask for more.

0 of 0 found this helpful

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Robert

Mountain Home, AR

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
Great Amp

January 25, 2016

Great amp very clean and loud running 4- db 6.5 " 1-db 8" sub. Hard to beat .

0 of 0 found this helpful

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Accessory Tools and Products

Accessories added

Belva BAK44 4-Channel 4 Gauge Amplifier Installation Kit

Complete 4-Channel CCA 4 Gauge Amp Kit with RCA Cables and Speaker Wire

Your Price $29.99

NVX XKIT44 4-Gauge 4-Channel Wiring Kit

4-Channel 100% OFC Complete True 4 Gauge Amp Kit with RCA Cables and Speaker Wire

Your Price $89.99

T-Spec V8-4DAK 4-Channel 4-Gauge Wiring Kit

Get everything you need to hook up your new amplifier!

Your Price $74.25

NVX Universal Remote Level Bass Control

Controls bass level and frequency via RCA/Interconnect connectors on any amp.

Your Price $7.99

Universal Remote Bass Level Control Knob

Flush Mount & Universal via RCA. Works with any amp, controls your bass output

Your Price $9.99

NVX XFLOC4

4-Channel Line Output Converter with Digital Noise Filter + Line Driver

Your Price $14.99

PAC LP7-4

L.O.C. PRO Series 4-Channel Line Output Converter with Remote Turn On

Your Price $32.95

AudioControl LC6i (Black)

6 Channel Line Out Converter with Internal Summing & 5-year warranty*!

Your Price $109.99

NVX XIV45 4-Channel RCA Audio Interconnect Cable

5 Meters (16.4 ft.) 4-Channel RCA Audio Interconnect Cable with Dual Twisted Pair Hyper-Flex Technology

Your Price $23.99

NVX V-Series RCA Interconnect Cable

19 ft. of 4-Channel RCA cable with dual twisted-pair conductors

Your Price $11.99

NVX XIX45 X-Series RCA Interconnect Cable

16.4 ft. of 4-Channel X-Series RCA Cable with Dual Twisted Pair Hyper-Flex Technology

Your Price $34.99

StreetWires ZN9 Series Interconnect Cable

16.4 ft. of 4-Channel RCA Cable with Rhodium-plated contacts and ZeroNoise construction for clear signal transfer!

Your Price $74.77

NVX XWS1225 12 AWG Speaker Wire

25 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $39.99

NVX XWS1250 Speaker Wire

50 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $29.99

NVX XWS1625 16 AWG Speaker Wire

25 ft. of True 16 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $15.99

Belva BBSW127 12 AWG Speaker Wire

12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $14.99

Belva BBSW167 16 AWG Speaker Wire

16 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $12.99

NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

Comes with everything you need to upgrade your power and ground wire.

Your Price $69.99

Belva BBG3KT CCA 1/0 Gauge Big Three Kit

Features everything needed to upgrade factory power and ground wire.

Your Price $34.99

XS Power BIG3XS 100% OFC 1/0 Gauge Big 3 Upgrade Kit

1/0 AWG Big 3 Upgrade Kit with 100% OFC Wire for Audio Sytems up to 350 Amps

Your Price $92.52

270 Amp G Series Alternator for Select 1994-2012 GM Vehicles

Most Popular! 270+ amps at anything above 1800 rpm engine speed!

Your Price $448.89

240 Amp S Series Alternator for Select 1992-2003 Dodge/Jeep Vehicles

240 Amp cutting edge 6 phase hairpin epoxy reinforced stator technology

Your Price $399.00

240 Amp L Series Alternator for Select 1963-1985 GM Vehicles

Specifically designed to fit in tight spaces

Your Price $399.00

250 Amp Alternator for Select 2003-2008 Ford/Lincoln/Mercury Vehicles

Cutting edge 6 phase hairpin stator technology with Twin internal rectifier plates with finned heat sink

Your Price $399.99

240 Amp S Series Alternator for Select 1999-2006 Jeep Vehicles

6 phase alternators use less horsepower per Kilowatt than conventional 3 phase alternators

Your Price $399.00

240 Amp S Series Alternator for 2011 Toyota Corolla

Ultra precision balanced rotor with oversized charge post ensure sturdy cable connections

Your Price $399.99

240 Amp S Series Alternator for 2006-2011 Honda Civic

15% more efficient than typical alternators

Your Price $549.99

370 Amp E Series Alternator with Black Finish for Select 1994 - 2003 GM

WOW 370 AMPS! Elite series offers the highest possible amperage

Your Price $699.00

320 Amp S Series Alternator for Custom and Racing Applications

Great for a Custom Project

Your Price $499.00

XS Power XP750-CK

XP750 AGM Battery + Installation Kit for 1000-1500 Watt Audio Sytems

Your Price $149.99

Kinetik HC1200-BLU

Kinetik BLU Series 1200 Watt 12V High Current AGM Car Audio Power Cell - Battery

Your Price $109.85

Stinger SPP680

680 Amp SPP Series Dry Cell Battery with Protective Steel Case

Your Price $119.99

NVX XCAP1F

True 1.0 Farad 20V Capacitor with Digital Read-out, Built-in Distribution Block

Your Price $59.99

Belva BB1D

1.0 Farad Capacitor with Digital Red Display for up to 1000W Max

Your Price $21.99

NVX XTGSP2

Perfect for safely troubleshooting and testing audio systems

Your Price $29.99

Scosche TK12

The perfect kit for installing a car stereo and amplifier for the first time

Your Price $18.99

Universal Wire Puller

Make your installation less of a chore and save yourself the stretch

Your Price $7.99

8 Gauge Ring Terminals, 5/16" Opening

Nickel Plated Brass - 5 Pieces (3 Red & 2 Black)

Your Price $1.99

0/1 Gauge Ring Terminals, 3/8" Opening

Nickel Plated Brass - 5 Pieces (3 Red & 2 Black)

Your Price $4.99

PRO Series Classic Short GM Battery Post Shoc-Krome

Side post battery adapter for GM type batteries (Positive or Negative)

Your Price $4.99

PRO Series Classic Long GM Battery Post w/ Shoc-Krome Plating

Side post battery adapter for GM type batteries (Positive or Negative)

Your Price $6.99

200 Amp Relay Isolator (BIR200)

Great for isolating a second batter making it dedicated to the stereo system

Your Price $39.99

120 Amp 4-Post Battery Isolator

Prevents primary battery discharge and extends battery life

Your Price $69.97

240 AMP 3-Post Battery Isolator

Prevents primary battery discharge and extends battery life

Your Price $124.60

World's Smallest AFS / Mini ANL Fuse Holder

Accepts 4 gauge or 8-gauge wire

Your Price $12.99

ANL/Mini-ANL Fuse Holder with 1/0 or 4 Gauge Input and Output

No-fail termination and current flow, it helps keep your system protected and running smoothly

Your Price $19.99

4 Pack of 80 Amp Nickel-Plated MANL Fuse

Mini-ANL (MANL/AFS) 80A Nickel Plated Fuses

Your Price $3.99

4 Pack of 100 Amp Nickel-Plated MANL Fuse

Mini-ANL (MANL/AFS) 100A Nickel Plated Fuses

Your Price $3.99

4 Pack of 150 Amp Nickel-Plated MANL Fuse

Mini-ANL (MANL/AFS) 150A Nickel Plated Fuses

Your Price $3.99

2 Pack of 200 Amp Nickel-Plated ANL Fuse

Two fuses per order. High quality 200 Amp ANL Fuses

Your Price $2.99

2 Pack of 300 Amp Nickel-Plated ANL Fuse

Two fuses per order. High quality 300 Amp ANL Fuses

Your Price $2.99

Gauge Reducer, 4 Gauge Input to 8 Gauge Pin

Great for amplifiers that do not accept a large gauge power wire

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Browse 4 questions and 16 answers
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Why did you choose this?
Sonic Electronix Store
High res rating
ray q on Dec 1, 2016
Was recommended for the 4 speakers I will be installing into my truck . By Sonic
robby k on Aug 20, 2016
Good price for the features (read power). Good reviews from previous buyers.
harold j on Sep 12, 2016
I needed a high power full range amp to push wakeboard tower speakers
anthony g on Mar 9, 2016
i noticed that all of the polk amps come with a terminal block adapter, what gauge wire does the adapter fit?
David on Mar 31, 2015
· Add Answer · I Have This Question Too (9)
can a polk pa d400.4 amplifier handle the following car speakers: front db6501, rear db561 and one db1040dvc subwoofer?? can it help the speakers produce the best sound quality?? thanks
mikel on Nov 14, 2014
Best Answer: Hello Michael,

The correct question is if the SPEAKERS can "handle" the amp, because the amp is the components that Provides power. To that, yes BUT the figures are a bit more than the speakers are asking for. This isn't a disastrous idea, but it will require YOU to provide a clean signal AND be responsible about the output. HOWEVER, being a 4channl, there will be No where for the db1040dvc to get is power from, since the 4channels will be taken up by the 4 Speakers. You must consider a 5 Channel amp or a separate Monoblock for the sub.
Reply (1) · Report · Customer SStaff on Nov 15, 2014
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In the description it says this unit comes with a wired remote bass control but in the specs it says no for remote bass control. Also the owners manual says nothing about a remote bass control. Sooooo, what the deal. Does it have a wired remote bass control or not?
A shopper on Apr 18, 2016
Best Answer: There is no remote bass control or a place to add one. It may have been an accident that the description said there was one included because SE is a stand up company with awesome phone support. If you have any other questions just call them. It may take a minute but it is worth the wait. I have called several times just to get info on things I had to integrate with their products.
Reply · Report · Kevin B on Apr 18, 2016
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Product Summary

Manufacturer

Model Number

PA D4000.4

UPC

747192121938

Weight

6.00lbs

Internal SKU

pad40004

Internal Product ID

39894

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Polk Audio PA D4000.4 (PAD4000.4)

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