Garage
Shop

See all parts that fit your 2012 Armada

Diamond Audio DES400.4D

800W RMS Class D Diamond Elite Series 4-Channel Full Range Car Amplifier

Diamond Audio
Shop all Diamond Audio
highlight-star-icon

• 140 watts x 4 channel @ 4 ohm
• 170 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

Learn more about the des4004d
Universal fit Icon

Universal – fits most vehicles.

Similar items | Update vehicle | Vehicle store
List price $549.99
Thanks , You Pay:
-5%

$519.99

 with warranty
Starting at $47/mo with

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.

2+ offers available
shipping truck icon Free shipping in USA. Provide zip for delivery date.
Dollar Icon
VIP Product Get $52.00 in rewards to spend later
Quantity
In Stock.
Brand new

Buy it now

VAD10004v2 main
NVX NVX VAD10004 v2 (VAD10004v2) 1000W RMS Class D Full Range 4-Channel Car/Marine/Powersports Amplifier

(24)

$279.99 $335.99
Sponsored

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...
72-7401 main

Metra 72-7401

Install New Speakers in select 2000-2024 vehicles from Nissan, Infiniti, Chevrolet

16
-13.34%

$12.99

List price $14.99

99-7620B main

Metra 99-7620B

Single/Double Dash Aftermarket Radio Installation Kit For select 2008-2015 Armada and Pathfinder

2
-34.67%

$489.99

List price $749.99

KDC-BT782HD main

Kenwood KDC-BT782HD

Single DIN CD Receiver with Bluetooth, Built-in Alexa, and HD Radio Tuner (SiriusXM Ready)

5
-18.89%

$219.00

List price $270.00

Limited time!
Kappa 63XF main

Infinity Kappa 63XF (INFSPKKA63XFAM)

510W Peak (170W RMS) 6.5" Kappa Series 2 Way Coaxial 3-ohm Speakers

10
-33.34%

$199.95

List price $299.95

TS-A878 main

Pioneer TS-A878

120W Peak (30W RMS) 3.5" A-Series 2-way 4-ohm Coaxial Speakers for select GM, Ford and Volkswagen models

31
-28.59%

$49.99

List price $70.00

JBL GX9638 (JBLGX9638AM)

600W Peak (200W RMS) 6x9" GX Series 3 Way Coaxial 2.3-ohm Speakers with Dual Tweeters

16
-10.01%

$89.95

List price $99.95

Current Promotions (4 offers)


This offer cannot be combined with any other coupons or offers.

Diamond Audio DES400.4D

30% off


Priced separately $719 98

Promo Savings of $60 00

Total price:

$659 98

This offer cannot be combined with any other coupons or offers.

Diamond Audio DES400.4D

30% off


Priced separately $599 98

Promo Savings of $24 00

Total price:

$575 98

This offer cannot be combined with any other coupons or offers.

Diamond Audio DES400.4D

50% off


Priced separately $554 98

Promo Savings of $17 50

Total price:

$537 48

Pre-installed black nylon mesh covering protects the power wire from being damaged, and pre-terminated seamless power and ground ring terminals provide reliable performance and cut out the hassle when installing. This offer cannot be combined with any other coupons or offers.

Diamond Audio DES400.4D

25% off


Priced separately $599 98

Promo Savings of $20 00

Total price:

$579 98

Description


High-Performance Class D 4-Channel Power

Pushing your door speakers to their absolute limit requires an amplifier capable of delivering exceptionally clean and consistent wattage. Diamond Audio DES400.4D steps up as a highly versatile 4-channel Class D powerhouse designed specifically to elevate your vehicle's entire soundstage. By taking advantage of an advanced digital chipset and a full PWM power supply, this robust unit effortlessly produces 140 watts RMS per channel at 4 ohms, or an impressive 170 watts per channel at 2 ohms. It even offers the flexibility to bridge down into a massive 400-watt stereo output, giving you the exact power configuration needed for high-end components, coaxial setups, or dedicated subwoofers.

Integrating this level of audiophile-grade performance into your ride is remarkably straightforward thanks to its highly adaptable architecture. The DES400.4D features balanced differential inputs that actively reject alternator whine and unwanted electrical interference right from the source. Loaded with fully adjustable 35Hz to 350Hz crossovers and flexible auto turn-on capabilities—including VOX, DC offset, and standard remote sensing—this space-saving amplifier makes it incredibly easy to configure a protected, competition-ready audio foundation with nearly any factory or aftermarket radio.

Product Details:

  • Diamond Elite Series Class D 2 ohm Stable 4-Channel Amplifier
  • RMS Power Rating:
    • 4 ohm: 140 watts x 4 channel
    • 2 ohm: 170 watts x 4 channel
    • Bridged: 400 watts x 2 channel @ 4 ohm
  • Total power output: 800 watts
  • LED Power/Protect Light
  • Surface mount component technology with 4-layer PCB
  • Compact size with single-sided connections
  • Speaker-level (high-level) inputs via direct connection of speaker wire through low-level inputs
  • Switched speaker level turn on options (Vox/DC Offset/Rem)
  • Input sensitivity
    • Low level: 0.2 - 10 volts
    • High level: Up to 25W RMS
  • Frequency Response: 10 - 35000 Hz
  • Total Harmonic Distortion (THD): 0.07%
  • Signal to Noise Ratio: -77.4 dB
  • Variable low-pass filter: 35 - 350 Hz
  • Fuse Rating: 60A
  • 8 AWG gauge amplifier wiring kit is recommended for installation
  • Dimensions: 9.3" L x 5.27" W x 1.75" H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
  • MFR #: DES400.4D


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)

123
-5.72%

$329.95

List price $349.95

Club 322F main

JBL Club 322F (SPKCB322FAM)

150W Peak (50W RMS) 3.5" Club Series 2 Way Coaxial 3-ohm Speakers

1
-27.29%

$79.95

List price $109.95

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

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

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

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

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 4.180 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

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

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

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
Bass Boost
Speaker Level Inputs
Power Specifications - Full Range Channels
RMS Power @ 4 ohms
140 watts x 4 channel
RMS Power @ 2 ohms
170 watts x 4 channel
Bridged RMS Power
400 watts x 2 channel
Amplifier Specifications
Series
Diamond Elite Series
Amplifier Class
D
Number of Channels
4-Channel
Total RMS Power Output
800 watts
Maximum Input Gauge Size
8 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
Frequency Response
10 - 35000 Hz
THD at Rated RMS Power
0.07%
Speaker Level Inputs
Optional (Requires Accessory Adapter)
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
High-Pass Crossover Frequency
35 - 350 Hz
Low-Pass Crossover Frequency
35 - 350 Hz
Signal-to-Noise Ratio
-77.4 dB
Remote bass/level controller
No
Fuse Rating
30A x 2 
Total Fuse Rating
60
Strappable
No
Sonic Certified Amplifier
Not Tested
Amp Bluetooth Connectivity
No
Hi-Res Certified
No
Low-Level Input Sensitivity
0.2 - 10 volts
What is in the box?
Paperwork
User manual
Quick start guide
WITB: Amplifiers
Amplifier
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

DES400.4D

Weight:

9.00lbs

Internal SKU:

des4004d

Internal Product ID:

174453

Customer Ratings & Reviews


Diamond Audio DES400.4D 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


VAD10004v2 main

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

XCA2004 main

NVX XCA2004

• 200 watts x 4 channel @ 4 ohm
• 350 watts x 4 channel @ 2 ohm
• Bridged: 700 watts x 2 channel @ 4 ohm
• Total RMS Power: 1400 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(1)

$399.99

List price $599.99


RT2500D small

Boss RT2500D Class D RIOT Series

(7)

$159.99

List price $349.99

R2-1200X1, XKIT42 small

Rockford Fosgate R2-1200X1 with Amplifier Wiring Kit

Rockford Fosgate 1200W Monoblock Amplifier

(148)

$456.68

List price $593.98

50CWCS104_2 small

Kicker CWCS104 (50CWCS104) - Pair

500W Peak (250W RMS) 10" CompC Series Single 4-ohm Car Subwoofer

$207.92

List price $299.98

Related Searches


Continue to cart

Available Offers (2) for Diamond Audio DES400.4D
FREE NVX Amp Kit at Checkout!
Save 30% off an NVX XKIT84 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT84 Amp Kit! No code needed — discount applies automatically at checkout.
Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

2012 Nissan Armada

2018 Porsche Cayenne

1999 Mitsubishi Eclipse

2019 Chevrolet Blazer

2017 BMW M4

2002 GMC Envoy

2001 Volvo S60

2002 Pontiac Firebird

2003 Jeep Wrangler

2016 BMW 4 Series

Vehicle
Store
Delete

2024 Can-Am Defender MAX DPS

2018 Can-Am Defender HD5

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.