Garage
Shop

See all parts that fit your 2012 A5

Power Acoustik REP4-900

440W 4-Channel Class A/B Reaper Series Power Amplifier

Product videos
highlight-star-icon

• 85W x 4-Chan. @ 4 ohm
• 110W x 4-Chan. @ 2 ohm
• 220W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 2/1 Channel Operation
• 8 Gauge Power and Ground Inputs
• Speaker Level Inputs

Learn more about the rep4900

We apologize

This item has been discontinued


Loading...
Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

122
-33.36%

$79.96

List price $119.99

43DSC6504 main

Kicker DSC650 (43DSC6504)

480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

28
-10.53%

$84.99

List price $94.99

DB652 main

Polk Audio DB652 (DB 652)

600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

12
-9.16%

$109.00

List price $119.99

Limited time!
Club 622 main

JBL Club 622

360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers

5
-28.58%

$99.95

List price $139.95

PNW-65CS2 main

AudioControl PNW-65CS2

250W Peak (200W RMS) 6.5″ PNW Series 2 Way Component 3-ohm Speakers

4
-5.90%

$319.00

List price $339.00

MPK 163.3 main

Hertz MPK163.3

600W Peak (300W RMS) 6.5" Mille PRO Series 3-way 4-ohm Component Speaker System

2
-14.89%

$999.99

List price $1175.00

NSP65 main

NVX NSP65

540W Peak (180W RMS) 6.5" N-Series 2 Way Coaxial Car Speakers

93
-35.19%

$69.99

List price $107.99

PH654 main

Cerwin-Vega PH654

600W Peak (300W RMS) 6.5" PRO Series Full Range Coaxial 4-ohm Speakers

2
-16.67%

$189.99

List price $227.99

XED62 main

Cerwin-Vega XED62

600W Peak (70W RMS) 6.5" XED Series 2-Way Coaxial 4-ohm Speakers

15
-16.67%

$49.99

List price $59.99

CVP8 main

Cerwin-Vega CVP8 (Sold Individually)

350W Peak (170W RMS) 8" CVPRO Series Pro Full Range 4-ohm Speaker

-16.67%

$49.99

List price $59.99

Product Highlights


• 85W x 4-Chan. @ 4 ohm
• 110W x 4-Chan. @ 2 ohm
• 220W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 2/1 Channel Operation
• 8 Gauge Power and Ground Inputs
• Speaker Level Inputs

Description


Power Acoustik brand icon

Authorized dealer

General Features:

  • Reaper Series 4-Channel Class AB Car Amplifier
  • RMS Power Rating:
    • 4 ohm: 85 watts x 4 chan.
    • 2 ohm: 110 watts x 4 chan.
    • Bridged, 4 ohm: 220 watts x 2 chan.
  • Max power output: 900 watts x 1 chan.
  • Pulse Width Modulated MOSFET power supply
  • Wired remote bass level control included
  • LED power (green) and protect (red) indicators
  • Variable Bass Boost (0 to +12 dB bass boost at 45 Hz)
  • Soft start turn-on
  • 2 or Mono channel operation
  • Speaker-level (high-level) inputs with signal sensing for automatic turn-on
  • Preamp RCA outputs to daisy chain multiple amps
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Heavy duty aluminum alloy heat-sink
  • Input sensitivity:
    • Level: 200mV-5V
  • Variable high-pass filter (50-400 Hz)
  • Variable low-pass filter (50-400 Hz)
  • Frequency response: 10-20000 Hz
  • 4 gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier.
  • Dimensions: 9"W x 12-1/2"D x 2-1/2"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Best selling similar products

VADM4v2 small

NVX VADM4 v2 (VADM4v2)

• 80 watts x 4 channel @ 4 ohm
• 125 watts x 4 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(41)

$209.99

List price $239.99

NDA6004 small

NVX NDA6004

• 100 watts x 4 channel @ 4 ohm
• 160 watts x 4 channel @ 2 ohm
• Bridged: 320 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(14)

$159.99

List price $215.99

RD400/4 small

JL Audio RD400/4

• 75 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(28)

$379.99

List price $379.99

MFA 4.220 small

Deaf Bonce MFA 4.220

• 220 watts x 4 channel @ 4 ohm
• 330 watts x 4 channel @ 2 ohm
• Bridged: 660 watts x 2 channel @ 4 ohm
• Total RMS Power: 1320 watts
• Class D 2 ohm Stable 4-Channel Amplifier

$289.90

List price $289.90

JD400/4 small

JL Audio JD400/4

• 75 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(34)

$299.99

List price $299.99

MFA 4.180 small

Deaf Bonce MFA 4.180

• 180 watts x 4 channel @ 4 ohm
• 270 watts x 4 channel @ 2 ohm
• Bridged: 540 watts x 2 channel @ 4 ohm
• Total RMS Power: 1080 watts
• Class D 2 ohm Stable 4-Channel Amplifier

$259.90

List price $259.90

DS 1200X4 small

Taramps DS 1200X4

• 192 watts x 4 channel @ 4 ohm
• 300 watts x 4 channel @ 2 ohm
• Bridged: 600 watts x 2 channel @ 4 ohm
• Total RMS Power: 1200 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(5)

$219.99

List price $258.00

R2-500X4 small

Rockford Fosgate Prime R2 R2-500X4

• 75 watts x 4 channel @ 4 ohm
• 125 watts x 4 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(10)

$359.99

List price $359.99

VAD10004v2 small

NVX VAD10004 v2 (VAD10004v2)

• 150 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(24)

$279.99

List price $335.99

MVPA4 small

NVX MVPA4

• 100 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(70)

$279.99

List price $383.99

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
85 watts x 4 channel
RMS Power @ 2 ohms
110 watts x 4 channel
Bridged RMS Power
220 watts x 2 channel
Amplifier Specifications
Series
Reaper Series
Amplifier Class
A/B
Number of Channels
4-Channel
Total Peak Power Output
900 watts
Total RMS Power Output
440 watts
Maximum Input Gauge Size
4 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
0.05%
Speaker Level Inputs
Yes
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
High-Pass Crossover Frequency
50 - 400 Hz
Low-Pass Crossover Frequency
50 - 400 Hz
Signal-to-Noise Ratio
104 dB
Bass Boost
6 - 12 dB
Remote bass/level controller
No
Fuse Rating
20A x 2 
Strappable
No
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

REP4-900

Weight:

8.50lbs

Internal SKU:

rep4900

Internal Product ID:

68798

Product and How-to Videos


Customer Ratings & Reviews


Power Acoustik REP4-900 thumbnail image

5 star
67%
4 star
33%
3 star
0%
2 star
0%
1 star
0%



Durability
4.5
Value
5
Features
4.5
Design
4.7
Usability
4.7

Customer Reviews

Sort by:

Loading...

Great sound for a great price

Great amp, powers my Pioneer TSDs 6.5" and 6x9" with ease. Sounds crisp and clean without trouble. Would recommend to anyone looking for great budget amp. Have had it for over a year now without any issues.

By Steve E on July 2, 2014

21 found this helpful


Great Value

I bought this REP4-900 to replace a Polk Audio PA660.4. They have similar power output and both sound clean, but the Power Acoustik amp is $100 cheaper. I wish I bought the more powerful REP4-1200 for $9 more.

By George on December 31, 2014

20 found this helpful


Nice Amp

For the money,this is a nice amp.Got this amp paired up to 4 6x9 Audiobahn 3way.This amp does the job and has a clean sound.I would recommend this to anyone.The bass and highs is great,some people think I have a small sub in my car.

By Terry on June 28, 2014

15 found this helpful


Replaced my PA LT720/4

I was noticing that my music was sounding muddy so I purchased the REP4-900 to replace my Power Acoustik LT720/4. The new amp was definitely cleaner sounding but does not have the easy access controls and lacks a couple options versus their older amp.

Still, the performance of this amp is far greater than you would expect for the price.

By Gray on April 12, 2014

14 found this helpful


Gets my job done

I got this amp to replace my Gothic amp that went out on,don't know why.I got it cause it had a nice price and the wattage I need.Im happy with it so far,have no problems as for now.My Gothic was almost two years old when it went out.

By Yeti on October 6, 2013

11 found this helpful


Loud & Clear. Wish I got this sooner!

This is the first 4-ch amp I've bought and I wish I got it years ago. I use this to power a couple PA 6.5" mid-bass speakers in the front and the stocks in the rear (I plan on replacing them soon). This thing is crisp, clear, and loud compared to any stereo I've ever heard. I have to turn down my bass a little so I don't distort my speakers, but it's still painfully loud. I don't think I'll ever turn this all the way up. Definitely recommended!

By Zipper369 on November 14, 2013

9 found this helpful




217071 small

Axis 217071

Midspan, Axis Poe Midspan 1-port

$69.00

List price $102.00

OGM41101 small

Oster OGM41101

1.1 Cubic Feet Digital Microwave

$69.99

List price $79.95

HNSE05 small

Haier HNSE05

4.6 Cu. Ft. Personal Refrigerator Plus Freezer Compartment (White)

$147.99

List price $159.99

CDR0410 small

CLOVER CDR0410

4-channel Dvr

$142.00

List price $539.00

DLC-2ABC small

Cuisinart DLC-2ABC

Mini Prep Plus Processor (Brushed Chrome)

$39.95

List price $75.95

HWPD32 small

Prodyne FB32

Acrylic Fusion Bottle Cocktail Shaker

$20.99

List price $33.00

XCLIP22 small

Limitless Creations XCLIP22 Open Box

Easy-Snap, Clip-On 2.0 Portable USB Speakers for Laptop/PC Use. Great For Travel

$11.99

List price $34.99

APOS5838 small

Oster APOS5838

Oster 5838 2lbs. White Bread Maker w/ 18 Settings & Nonstick Pan

$83.99

List price $158.00

SMC4TVP small

The Singing Machine SMC4TVP

Karaoke Evolved (Pink)

$57.95

List price $69.99

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

2012 Audi A5

2008 BMW X3

2008 Mazda 5

2010 Dodge Ram 2500

2008 Lexus IS350

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.