Garage
Shop

See all parts that fit your 2003 Passat

DS18 Hydro NXL-X850.4D

1600W Peak Class D HYDRO Series 4-Channel Marine and Powersports Amplifier

DS18
Shop all DS18
highlight-star-icon

• 150 watts x 4 channel @ 4 ohm
• 200 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 1600 watts
• IPX6 waterproof rating
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

Learn more about the nxlx8504d
Universal fit Icon

Universal – fits most vehicles.

Similar items | Update vehicle | Vehicle store
Thanks , You Pay:

$659.95

 with warranty
Starting at $60/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.

shipping truck icon Free shipping in USA. Provide zip for delivery date.
Dollar Icon
VIP Product Get $66.00 in rewards to spend later
Quantity
In Stock.
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
NVX - Worth the Envy - Direct to Consumer Car Audio

Loading...
SAVW6 main

Scosche SAVW6

Speaker Adapters for select 1998-2018 vehicles from Volkswagen, Audi

4
VAGDB3 main

GROM Audio VAGDB3 Skoda and VW Bluetooth Streaming Kit (GROM-BT3-VAGD)

Add Bluetooth Hands Free Calling and Music Streaming to Select 2002-2010 Skoda and VW Factory Radios with Double DIN Radio

-16.67%

$179.99

List price $215.99

Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

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

124
-33.36%

$79.96

List price $119.99

XRM59BT main

Dual XRM59BT

Single DIN Digital Media Receiver with Bluetooth, USB and Aux

28
PRO-X6.4BMPK main

DS18 PRO-X6.4BMPK

1000W Peak (500W RMS) 6.5” PRO-X Series 4-ohm Pro Audio Component Speakers Set

4
480BRGB main

Boss Elite 480BRGB

Double DIN Digital Media Receiver with Bluetooth

17
XED650C main

Cerwin-Vega XED650C

600W Peak (70W RMS) 6.5" XED Series 2-Way 4-ohm Component Speaker System

28
-16.67%

$64.99

List price $77.99

H7652 main

Cerwin Vega H7652

640W Peak (120W RMS) 6.5" HED Series 2-Way Coaxial 4-ohm Speakers

31
-16.67%

$69.99

List price $83.99

FKB116 main

MB Quart FKB116

240W Peak (120W RMS) 6.5" Formula Series 2-Way 4-ohm Coaxial Car Speakers

12
-56.26%

$34.99

List price $79.99

GTO629 main

JBL GTO629

360W Peak (120W RMS) 6.5" GTO Series 2-Way Full Range Coaxial 3-ohm Car Speakers

35
-34.45%

$117.99

List price $180.00

Current Promotions (1 offer)


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

DS18 Hydro NXL-X850.4D

15% off


Priced separately $726 94

Promo Savings of $10 05

Total price:

$716 89

Description


DS18 brand icon

Authorized dealer

DS18 NXL-X850.4D

DS18’s NXL-X850.4D is a powerhouse designed by DS18 for those seeking exceptional power output and enhanced sound performance.

Experience enhanced sound quality and power with DS18’s NXL-X850.4D!

Product Details:

  • Hydro Series Class D 2 ohm Stable 4-Channel Amplifier
  • RMS Power Rating:
    • 4 ohm: 150 watts x 4 channel
    • 2 ohm: 200 watts x 4 channel
    • Bridged: 400 watts x 2 channel @ 4 ohm
  • IPX6 waterproof rating
  • UV, salt and fog protection
  • Total power output: 1600 watts
  • LED Power/Protect Light
  • Speaker-level (high-level) inputs
  • 1 pair of pre-amp outputs
  • 4-way protection circuitry: Thermal, overload, short circuit output and voltage input
  • Black brushed aluminum body
  • Direct power harness design with marine grade OFC tinned wires
  • Input sensitivity:
    • Low level: 200 mV - 5 volts
  • Frequency Response: 10 - 20000 Hz
  • Total Harmonic Distortion (THD): <0.04%
  • Signal to Noise Ratio: >83 dB
  • Variable high-pass filter: 40 - 2000 Hz
  • Variable low-pass filter: 40 - 2000 Hz
  • Fuse Rating: 100A
  • 8 AWG gauge amplifier wiring kit is recommended for installation
  • Dimensions: 11.8" L x 4.4" W x 1.77" H
  • Authorized Internet Dealer
  • 2 Year Manufacturer's Warranty
  • MFR #: NXL-X850.4D

Loading...
Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

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

124
-33.36%

$79.96

List price $119.99

DMH-1800NEX main

Pioneer DMH-1800NEX

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

3
-19.05%

$339.99

List price $420.00

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

UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth

44
-16.69%

$149.95

List price $180.00

CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3
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

Limited time!
DMH-W3050NEX main

Pioneer DMH-W3050NEX

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

1
-24.20%

$469.99

List price $620.00

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

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

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


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

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

(25)

$279.99

List price $335.99

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

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

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

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

(38)

$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

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

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
Speaker Level Inputs
Weather-Resistant
Power Specifications - Full Range Channels
RMS Power @ 4 ohms
150 watts x 4 channel
RMS Power @ 2 ohms
200 watts x 4 channel
Bridged RMS Power
400 watts x 2 channel
Amplifier Specifications
Series
Hydro Series
Amplifier Class
D
Number of Channels
4-Channel
Total Peak Power Output
1600 watts
Maximum Input Gauge Size
8 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
Frequency Response
10 - 20000 Hz
THD at Rated RMS Power
<0.04%
Speaker Level Inputs
Yes
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
40 - 2000 Hz
Low-Pass Crossover Frequency
40 - 2000 Hz
Signal-to-Noise Ratio
>83 dB
Channel Separation
60 dB
Remote bass/level controller
No
Fuse Rating
50A x 2 
Total Fuse Rating
100
Amp Bluetooth Connectivity
No
Hi-Res Certified
No
Low-Level Input Sensitivity
200 mV - 5 volts
What is in the box?
Paperwork
User manual
WITB: Amplifiers
Amplifier
Warranty and Return Policy
Parts Warranty Duration
2 years
Labor Warranty Duration
2 years
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

NXL-X850.4D

Weight:

6.00lbs

Internal SKU:

nxlx8504d

Internal Product ID:

204805

Customer Ratings & Reviews


DS18 Hydro NXL-X850.4D 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


(2)BMS12RW, BXD3K small

(2) Belva BMS12RW with Belva BXD3K

12" Marine Subwoofer With Multicolor RGB Lights + Class-D Monoblock Amplifier with Bass Remote

(7)

$259.95

List price $429.97

ZS5768CX_2 small

Hifonics ZS5768CX (2-Pairs, 4-Total)

1000W Peak (360W RMS) Zeus Series 5x7" / 6x8” Coaxial Speakers (2-Pairs)

(4)

$59.98

List price $73.98

Related Searches


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

2003 Volkswagen Passat

1987 Dodge Raider

2005 Honda Civic

2008 Mazda 3

1968 Chevrolet C30 Pickup

1998 Honda Civic

2019 Nissan Versa Note

1987 Subaru DL

2010 Kia Rondo

2002 Mazda MX-5 Miata

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.