Garage
Shop

See all parts that fit your 2004 Rainier

DS18 MP.4A

480W Peak (160W RMS) Class D HYDRO Series 4-Channel Marine and Powersports Amplifier

DS18
Shop all DS18
Only 3 Left!
highlight-star-icon

• 40 watts x 4 channel @ 4 ohm
• Total RMS Power: 160 watts
• Class D 4 ohm Stable 4-Channel Amplifier
• IPX5 waterproof rating with salt and fog protection

Learn more about the mp4a
Universal fit Icon

Universal – fits most vehicles.

Similar items | Update vehicle | Vehicle store
List price $179.95
Thanks , You Pay:
-17%

$149.95

 with warranty
Starting at $14/mo or 4 payments of $38 Buy now, pay later and installment payment plans are offered by Afterpay and Affirm. Learn more

Heads up

Your vehicle can use this product in multiple locations. Only a quantity of one can be selected from the product page. You will have the option to adjust the quantity within your cart.

shipping truck icon Free shipping in USA. Provide zip for delivery date.
Dollar Icon
VIP Product Get $15.00 in rewards to spend later
Quantity
In Stock. Only 3 Left!
Brand new

Buy it now


Acima Logo

No Credit Option

Flexible Lease Payments

Early Purchase Options

Quick Approval Decision

Extend logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Hassle-free immediate replacement within minutes!
  • Easy online claims 24/7
  • Covers product breakdowns and failures
Swoosh Icon Icon of Swoosh

For over 25 years, we've been your X-Factor – the team dedicated to having the biggest impact on your shopping experience!

Award winning icon
Award-Winning Service
Shipping icon
FREE Shipping Orders $49+
60 days return policy icon
60-Day Easy Returns
lowest price guarantee icon
Guaranteed Lowest Price
inHouseExpert
In-House Experts

Loading...
BV850ACP main

Boss Elite BV850ACP

6.75" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto with Backup Camera

5
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

TS-A6991F main

Pioneer TS-A6991F

1400W Peak (240W RMS) 6x9" A-Series 5-Way Coaxial 4-ohm Speakers

9
-13.34%

$129.99

List price $150.00

Limited time!
TS-G1620F main

Pioneer TS-G1620F

600W Peak (80W RMS) 6.5" G-Series 2-Way Coaxial 4-ohm Car Speakers

13
-26.15%

$48.00

List price $65.00

DMH-2000NEX main

Pioneer DMH-2000NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, Alexa (Sirius XM Ready)

2
CV62BM main

Cerwin-Vega CV62BM

6.2” Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth

4
-16.67%

$169.99

List price $203.99

Description


DS18 brand icon

Authorized dealer


DS18 MP.4A

In the rugged world of motorsports, where water, dust, and vibrations relentlessly test your audio gear, the MP.4A stands strong. Encased in a striking brushed red aluminum body, it's not only stylish but also exceptionally durable. The MP.4A is designed to brave the elements with its IP55 waterproofing, ensuring your music never falters, whether you're embarking on a dusty off-road adventure or a serene seaside drive. And for added protection, we've fortified the MP.4A with Salt & Fog Protection.

Connecting your audio source is a breeze, thanks to the 3.5mm jack input audio connector and RCA left and right audio outputs. These features allow you to seamlessly link other amps to it or integrate it into your current system. Every note and beat are faithfully reproduced, thanks to a raw MAX Power of 480W, delivering an exhilarating sensory experience that will send shivers down your spine. The continuous power output of 4 x 40W RMS ensures unmatched clarity and precision in your sound, with a frequency response spanning from 20Hz to 20KHz and a signal-to-noise ratio of 82dB, making every note crisp and every beat pronounced.


Product Details:

  • Hydro Series Class D 4 ohm Stable 4-Channel Amplifier
  • RMS Power Rating:
    • 4 ohm: 40 watts x 4 channel
  • Total power output: 160 watts
  • LED Power/Protect Light
  • 2 pairs of pre-amp outputs
  • Signal sensing remote turn-on
  • Thermal, over-load, DC output, short, voltage protection
  • IPX5 waterproof rating with salt and fog protection
  • Brushed red aluminum body color/finish
  • Power direct harness design
  • Marine grade waterproof fuse holder
  • Surface mount component technology
  • Low Input sensitivity: 2.5 volts (fixed)
  • Frequency Response: 20 - 20000 Hz
  • Total Harmonic Distortion (THD): 0.1%
  • Signal to Noise Ratio: 82 dB
  • Fuse Rating: 20A
  • 16 AWG gauge amplifier wiring kit is recommended for installation
  • Dimensions: 6" L x 3.66" W x 1.96" H
  • Authorized Internet Dealer
  • 2 Year Manufacturer's Warranty
  • MFR #: MP.4A


Loading...
BV850ACP main

Boss Elite BV850ACP

6.75" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto with Backup Camera

5
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

Limited time!
46CSC6934 main

Kicker CSC693 (46CSC6934)

900W Peak (300W RMS) 6x9” CS Series 3 Way Coaxial 4-ohm Speakers with Integrated Midrange Speakers

40
-30.02%

$111.96

List price $159.99

DMH-1800NEX main

Pioneer DMH-1800NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready

2
-16.67%

$349.99

List price $420.00

iLX-W650 main

Alpine iLX-W650

7" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)

124
-5.72%

$329.95

List price $349.95

DMH-W4660NEX main

Pioneer DMH-W4660NEX

6.8" Double DIN Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, and Android Auto (SiriusXM Ready)

2
-20.00%

$599.99

List price $750.00

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

BMV62W main

Belva BMV62W

6.2" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto and Phone Mirroring

28
-66.67%

$89.99

List price $269.99

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


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

VAD11005v2 small

NVX VAD11005 v2 (VAD11005v2)

• 80 watts x 4 channel + 350 watts x 1 channel @ 4 ohm
• 125 watts x 4 channel + 600 watts x 1 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm + 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 1100 watts
• Class D 2 ohm Stable 5-Channel Amplifier

(46)

$349.99

List price $419.99

VAD17001v2 small

NVX VAD17001 v2 (VAD17001v2)

• 800 watts x 1 channel @ 4 ohm
• 1350 watts x 1 channel @ 2 ohm
• 1700 watts x 1 channel @ 1 ohm
• Total RMS Power: 1700 watts
• Class D 1 ohm Stable Monoblock Amplifier

(35)

$259.99

List price $335.99

VAD22008v2 small

NVX VAD22008 v2 (VAD22008v2)

• 150 watts x 6 channel + 250 watts x 2 channels @ 4 ohm
• 225 watts x 6 channel + 400 watts x 2 channels @ 2 ohm
• Bridged: 450 watts x 3 channel + 850 watts x 1 channel @ 4 ohm
• Total RMS Power: 2200 watts
• Class D 2 ohm Stable 8-Channel Amplifier

(2)

$399.99

List price $539.99

VADM1 small

NVX VADM1 v2 (VADM1v2)

• 240 watts x 1 channel @ 4 ohm
• 400 watts x 1 channel @ 2 ohm
• 600 watts x 1 channel @ 1 ohm
• Total RMS Power: 600 watts
• Class D 1 ohm Stable Monoblock Amplifier

(16)

$189.99

List price $239.99

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

VAD10001v2 small

NVX VAD10001 v2 (VAD10001v2)

• 420 watts x 1 channel @ 4 ohm
• 760 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• Total RMS Power: 1000 watts
• Class D 1 ohm Stable Monoblock Amplifier

(37)

$209.99

List price $227.99

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

MVPA6 small

NVX MVPA6

• 100 watts x 6 channel @ 4 ohm
• 150 watts x 6 channel @ 2 ohm
• Bridged: 300 watts x 3 channel @ 4 ohm
• Total RMS Power: 900 watts
• Class D 2 ohm Stable 6-Channel Amplifier

(7)

$319.99

List price $383.99

AP200/4BT small

JL Audio AP200/4BT

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

$549.99

List price $659.99

Specifications & Details


Key Features
Amplifier Key Features
Compact Design
Weather-Resistant
Power Specifications - Full Range Channels
RMS Power @ 4 ohms
40 watts x 4 channel
Amplifier Specifications
Series
Hydro Series
Amplifier Class
D
Number of Channels
4-Channel
Total Peak Power Output
480 watts
Total RMS Power Output
160 watts
Maximum Input Gauge Size
16 AWG
Minimum Impedance Unbridged
4 ohm
Minimum Impedance Bridged
Not Bridgeable
Frequency Response
20 - 20000 Hz
THD at Rated RMS Power
0.1%
Speaker Level Inputs
No
Preamp Outputs
2 pairs
Signal-to-Noise Ratio
82 dB
Remote bass/level controller
No
Total Fuse Rating
20
Strappable
No
Amp Bluetooth Connectivity
No
Hi-Res Certified
No
Low-Level Input Sensitivity
0 - 2.5 volts
What is in the box?
Paperwork
User manual
WITB: Amplifiers
Amplifier
Mounting screws (6)
Other Accessory #1
Marine grade fuse holders
Warranty and Return Policy
Parts Warranty Duration
2 years
Labor Warranty Duration
2 years
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

MP.4A

Weight:

2.00lbs

Internal SKU:

mp4a

Internal Product ID:

204815

Customer Ratings & Reviews


DS18 MP.4A thumbnail image

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



Durability
0
Value
0
Features
0
Design
0
Usability
0

Customer Reviews

Sort by:

Loading...
Sorry, no reviews found


KD-7 small

Roland KD-7

Kick Trigger Unit for Roland V-Drums w/ Included Special Reverse Beater

$97.99

List price $139.00

NN1676B small

Scosche NN1676B Dash Kit

Install a new Single-DIN or Double-DIN car stereo in select 2012-2014 Versa (Gloss Black)

(1)

$15.95

List price $17.95

Related Searches


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

2004 Buick Rainier

2002 Mitsubishi Eclipse

2008 Mazda 5

1994 Cadillac DeVille

2009 Dodge Durango

2000 GMC K2500

2007 Audi A4

1985 Mazda RX-7

2003 Dodge Durango

2000 Lotus Esprit

Vehicle
Store
Delete

2017 Can-Am Defender XT HD8

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.