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Polk Audio PA400.1 (PA 400.1)

800W Max, Class D Monoblock Amplifier

4.8

(4 reviews)

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The product on this page is discontinued.

Specials with this product

  • Free Ground Shipping to the 48 statesdetails
  • PA Series Class D Monoblock Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 200 watts x 1 chan.
    • 2 ohms: 300 watts x 1 chan.
    • 1 ohm: 400 watts x 1 chan.
  • Max power output: 800 watts x 1 chan.
  • PWM (Pulse Width Modulated) MOSFET power supply
  • Wired remote volume level control included
  • LED power and protection indicators
  • Selectable bass boost (0, +8 dB at 40 Hz)
  • Double-layer fiberglass epoxy printed circuit boards
  • 1 ohm stable
  • High-speed MOSFET switching power supply and high current Bipolar Output Transistors pump maximum voltage and high current to your subwoofers
  • Connection for optional LED light bar or optional amplifier cooling
  • Power/ground-reversal, thermal, short, current, overdraw, and low impedance protection circuitry
  • Cast aluminum textured end caps
  • Switchable 180° phase inversion
  • Variable input sensitivity optimizes match with different signal sources
  • Unity gain pass-through RCA jacks
  • Mounting hardware with rubber isolation grommets and extra fuses included.
  • Effective Damping Factor: >150
  • Anodized extruded brushed-aluminum cover for maximum heat dissipation
  • Preamp RCA outputs
  • Chrome-plated RCA level inputs
  • Chrome-plated screw terminals
  • Variable low-pass filter (30-250 Hz, 12 dB/octave)
  • Subsonic Filter (24 dB at variable frequencies)
  • CEA-2006 compliant amplifier
  • Frequency response: 20-250 Hz
  • Dimensions: 10-1/2"L x 10-1/4"W x 2-3/4"H
  • 4-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • 1-year SonicElectronix.com warranty
Power Specifications - Subwoofer Channel
RMS Power @ 4 ohms200 watts x 1 channel
RMS Power @ 2 ohms300 watts x 1 channel
RMS Power @ 1 ohm400 watts x 1 channel
Peak Power Output800 watts x 1 channel
Amplifier Specifications
Amplifier ClassD
Number of Channels1 - Mono
Total Peak Power Output800 watts
Total RMS Power Output400 watts
Maximum Input Gauge Size4 AWG
Minimum Impedance Unbridged1 ohms
Minimum Impedance BridgedN/A
THD at Rated RMS Power1%
Speaker Level InputsNo
Preamp Outputs1 pair
Built-in CrossoverLow-pass (LP)
High-Pass Crossover FrequencyN/A
Low-Pass Crossover Frequency30 - 250 Hz
Subsonic FilterVariable
Signal-to-Noise Ratio98 dB
Channel SeparationN/A
Bass Boost0 - 8 dB
Bass/Gain RemoteYes
Fan CooledOptional (Accessory is required)
Fuse Rating25A x 2 
CEA-2006 CompliantYes
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderSonic Electronix
Customer Review Summary for Polk Audio PA400.1 (PA 400.1)
Average Customer Rating is 4.8 out of 5 stars:
4.8
based on 4 Reviews
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Rating Distribution:
5 star:
.
.
75%
4 star:
.
.
25%
3 star:
.
0%
2 star:
.
0%
1 star:
.
0%
what's this?
Average Attributes Rating:
Durability
4.5
Value
4.5
Features
4.8
Design
4.8
Usability
5.0
what's this?
Most Helpful Customer Reviews:
January 8, 2012 Great amp!
Review by
crummyd from ATL, GA
Overall
Durability
Value
Features
Design
Usability
Bought this amp (PA400) to match the polk dxi 12" dual voice coil sub. Built custom enclosure based on polk's specs and wired to 2 ohms and can't believe how good it sounds. Just one sub and it has clean, tight and thunderous bass reproduction no matter what music i listen to at all volume levels. For the money, I have never heard anything that comes close to this. Great job Polk Audio!!!
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December 23, 2011 good amp
Review by
John from Wyoming, MN
Overall
Durability
Value
Features
Design
Usability
Good amp works great not many problems yet and ive owned it for about 7 months. Ive got it in a crown vic police interceptor powering a pair of kicker L3 12's and feeding it with signal is a Kenwood KDC-HD548U. Sound is great. However on the head unit the volume rang is 0 - 35 and it sounds best up to 27 but when i play a song with loads of bass and i turn it up to around 32 the amp turns off and i have to turn it back down and wait around a minute or turn the headunit off and back on again not sure if thats the headunit or the amp. Other than that the amp is great also keep in mind that different amps reproduce bass in different ranges better than others like in this set up the mid and higher bass is loud and clear but you get around the subsonic range and then it seams like its struggling to reproduce the bass.
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August 26, 2011 Looking 4 a 1 ohm stable amp?
Review by
Parker from Fargo, Nd
Overall
Durability
Value
Features
Design
Usability
Looking for a one ohm stable amp. 400watts rms @ 1 ohm for my JBL 12" power series (Block-beater BTW! :) This amp is a perfect match. POLK Audio is #1 next to JL, Crossfire, JBL, MTX, Sundown, Audioque, Digital Designs, RE Audio, and such. Can't go wrong never overheats Clean power all the time.
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May 20, 2010 Perfect, perfect, ...
Review by
JaM from Dunajska Streda, Slovakia
Overall
Durability
Value
Features
Design
Usability
Compact amplifier PA400.1 is perfect solution in this category. I listen only music in my car. I am not "alegoric car" from Rio de Janeiro!
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Amplifier Wiring Kits
Get the wires you need to properly install and power your car amp.
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Speaker Wire
Improve the sound quality by delivering more power when replacing your factory wiring. High quality speaker will maximize your amplifier investment and system performance.
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12 Gauge Wire - 20 ft. of Dual Twist Speaker Cable with Sleeves for a Clean Install		$24.49
StreetWires SCP1215BL - 12 AWG Speaker WireStreetWires SCP1215BL - 12 AWG Speaker Wire
12 Gauge Wire - 15 ft. of Speaker Cable with Twisted Construction		$19.99
RCA Interconnects
You will need a good set of RCA interconnect cables to connect your amplifier to your head unit. Using high quality cables ensure the best sound possible by reducing unwanted noise interference, providing tight contacts, and utilizing the latest in cable technology.
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Capacitors
Capacitors store energy for the amplifier to use on demand, thereby assisting in the elimination of dimming lights during peak power surges during use.
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Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max		$45.99
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Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max		$104.99
Installation, Tools & Accessories
With our professional install card, you can have your amp installed by a pro near you, or you can purchase tools and do the install yourself.
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StreetWires FB4StreetWires FB4
4 AWG / 4 Gauge Firewall Bushing		$7.99
Kicker DB1448 (09DB1448) - Top of the Line!Kicker DB1448 (09DB1448) - Top of the Line!
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Professional Installation for your Car Power AmplifierProfessional Installation for your Car Power Amplifier
Covers labor charges through our professional installer network.		$89.99
Testing and Performance
Optimize your system's performance with testing tools such as SPL meters, bass test discs and more!
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AutoSound 2000 CD-104AutoSound 2000 CD-104
The ultimate amplifier level setting disc used for evaluation of audio components		$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.		$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.		$12.99
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Product Summary

Manufacturer: Polk Audio
Model number: PA400.1
UPC: 747192113612
Weight: 11.50 lbs
Internal SKU: pa4001
Internal product ID: 13579

Why Sonic Electronix?

Musical Mayhem Sweepstakes sponsored by MTX Audio. 3 winners, $2,300 in prizes!

Customer Testimonial

How in the heck do you guys ship product out to my house in less than 24 hours after purchase??? I know I am only about 30 miles south of you guys down the 405 but damn; that's just amazing. Thank you! The Bazooka is bangin already in my car and sounds great!

- Peter from Los Angeles

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