Garage
Shop

See all parts that fit your 2003 Maxima

Sundown Audio SIA-5000D (Open Box, Like New)

5000W RMS Class D SFB Series Monoblock Car Amplifier

highlight-star-icon

• 3400 watts x 1 channel @ 4 ohm
• 4950 watts x 1 channel @ 2 ohm
• 5000 watts x 1 channel @ 1 ohm
• Total RMS Power: 5000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Learn more about the sia5000_obn

We apologize

This item has been discontinued

Description


Sundown Audio brand icon

Authorized dealer

Item Condition - Like New (Open Box):

This product works and looks like new. It may have been opened for a visual demo or product video. In some cases there may be signs of an attempt at installation like opened packaging or mounting screw holes used, but there is no real sign of use or wear. Includes all original parts, packaging and accessories (or suitable replacement)

Sundown Audio SIA-5000D

5000W RMS Class D SIA Series Monoblock Car Amplifier
Quantity: 1

Product Details:

  • SIA Series Class D 1 ohm Stable Monoblock Amplifier
  • RMS Power Rating:
    • 4 ohm: 3400 watts x 1 channel
    • 2 ohm: 4950 watts x 1 channel
    • 1 ohm: 5000 watts x 1 channel
  • Total RMS power output: 5000 watts
  • Power, protection and clipping LED indicators
  • Wired bass level remote control with clipping indicator included
  • 4-way protection circuitry (thermal, voltage, speaker short and DC offset protection)
  • Dual MOSFET PWM power supply
  • Advanced 3-speed smart cooling fan design
  • Intelligent full bridge design
  • Input sensitivity:
    • Low level: 0 - 5 volts
  • Signal to Noise Ratio: 108 dB
  • Variable low-pass filter: 40 - 20000 Hz
  • Variable high-pass filter: 10 - 1000 Hz
  • Variable Bass Boost: 0 - 12 dB
  • Fuse Rating: 440A
  • Dimensions: 13.78" L x 8.86" W x 2.68" H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
  • MFR #: SIA-5000D

Specifications & Details


Key Features
Amplifier Key Features
Bass Boost
Power Specifications - Subwoofer Channel
RMS Power @ 4 ohms
3400 watts x 1 channel
RMS Power @ 2 ohms
4950 watts x 1 channel
RMS Power @ 1 ohm
5000 watts x 1 channel
Amplifier Specifications
Series
SFB Series
Amplifier Class
D
Number of Channels
1 - Mono
Total RMS Power Output
5000 watts
Minimum Impedance Unbridged
1 ohm
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
High-Pass Crossover Frequency
10 - 1000 Hz
Low-Pass Crossover Frequency
40 - 20000 Hz
Signal-to-Noise Ratio
108 dB
Bass Boost
0 - 12 dB
Remote bass/level controller
Yes
Fuse Rating
220A x 2 
Total Fuse Rating
440A
Amp Bluetooth Connectivity
No
Hi-Res Certified
No
Low-Level Input Sensitivity
5 volts maximum
What is in the box?
Paperwork
User manual
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:

SIA5000_OBN

Weight:

11.00lbs

Internal SKU:

sia5000_obn

Internal Product ID:

224374

Customer Ratings & Reviews


Sundown Audio SIA-5000D (Open Box, Like New) thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Photos & Videos


Customer Reviews

Sort by:

Loading...

Great Amp. It bangs!

The following review is for SIA-5000D, which is a part of the bundle you are viewing.

This amp pushes my 2 sundown audio u series to the max. Hits the deep bass like nothing. Bass knob is nice for adjustments depending on genre/song. As always Sonic Electronix always has excellent customer service and is fast with shipping!

By chadd on February 27, 2025 Checkmark Icon Verified purchase

2 found this helpful


The following review is for SIA-5000D, which is a part of the bundle you are viewing.
By Undra on August 9, 2025 Checkmark Icon Verified purchase

1 found this helpful


The following review is for SIA-5000D, which is a part of the bundle you are viewing.
By Eric on July 3, 2025 Checkmark Icon Verified purchase

1 found this helpful




EXL-P1200X4 small

DS18 EXL-P1200X4

1200W RMS Class AB EXL Power Series 4-Channel Full Range Car Amplifier with Bass Remote

(2)

$369.95

List price $369.95

No picture

BOYO Vision VTL400IRTJ Reverse Camera (Open Box)

Bar Type License Plate Backup camera w/ Night Vision and Parking Lines

$55.95

List price $95.00

8402005 small

Mohawk 8402005

Liquid Scrtch Cover 16oz

$18.00

List price $30.00

No picture

Atrend SPL-15DV Open Box (Complete)

Dual 15" SPL Series Vented Subwoofer Enclosure (Coated Finish)

(4)

$300.99

List price $569.99

BS40C small

Camp Chef BS40C

2 Cast Aluminum Burner Ranger II Blind Stove

$89.99

List price $129.95

No picture

NVX XIX27 (Open Box, Good)

22.97 ft (7 meter) 2-Channel X-Series RCA Audio Interconnect Cable

$12.59

List price $49.99

APOP30012 small

Optimus U30012

2-Pack Humidifier Replacement Wick Filters for Optimus U-33100

$26.99

List price $35.00

BWH18A small

Haier BWH18A

18,000BTU Cool / 16,000BTU Heat Window Air Conditioner/Heater (White)

$629.99

List price $689.99

5429 small

Lasko 5429

Oscillating Ceramic Heater w/ 3 Quiet Comfort Settings & Adjustable Thermostat

$31.49

List price $39.99

Related Searches


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

2017 Mazda CX-5

2003 Nissan Maxima

2003 Lincoln Navigator

1981 Mercury Cougar

1982 Dodge 400

2008 MINI Cooper

1981 Ford Bronco

2019 Ford Flex

2015 Dodge Viper

1984 Chrysler E Class

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.