Like New (Open Box) - Belva BXD4K 4000W BX-Series Class-D Monoblock Car Audio Amplifier

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Product videos

Product highlights

• 1000 watts x 1 channel @ 4 ohm
• 2000 watts x 1 channel @ 2 ohm
• 4000 watts x 1 channel @ 1 ohm
• Total Peak Power: 4000 watts
• Class D 1 ohm Stable Monoblock

Learn more about the ls-bxd4k-u9

Universal – fits most vehicles.

Similar items | Update vehicle | Vehicle store

List price $229.95

-54%

$106.24

with warranty

Starting at $10/mo

or 4 payments of $27

Free shipping in USA. Provide zip for delivery date.

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Brand new $139.99

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Current Promotions (1 offer)

50% Off an Amplifier Installation Kit with Purchase!

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

Belva BXD4K (Like New (Open Box))

https://images.sonicelectronix.com/images/5407569/main/bak42.jpg

50% off

Belva BXD4K (Like New (Open Box))

$106 ²⁴

Belva BAK42

$34 ⁹⁹

Priced separately $141 ²³

Promo Savings of $17 ⁵⁰

Total price:

$123 ⁷³

Product Highlights

• 1000 watts x 1 channel @ 4 ohm
• 2000 watts x 1 channel @ 2 ohm
• 4000 watts x 1 channel @ 1 ohm
• Total Peak Power: 4000 watts
• Class D 1 ohm Stable Monoblock

Description

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)

Product Details:

BX Series Class D 1 ohm Stable Monoblock Amplifier
Power Rating:

4 ohm: 1000 watts x 1 channel
2 ohm: 2000 watts x 1 channel
1 ohm: 4000 watts x 1 channel

Total Peak power output: 4000 watts
Pulse Width Modulated MOSFET power supply
LED Power/Protect Light
Wired remote bass level control included
Soft start turn-on
3-way protection circuitry (thermal, overload, and speaker short protection)
Input sensitivity:

Low level: 200mV - 8 volts

Frequency Response: 10 - 250 Hz
Total Harmonic Distortion (THD): 0.05%
Signal to Noise Ratio: 96 dB
Variable low-pass filter: 50 - 250 Hz
Variable Bass Boost: 0 - 18 dB
Fuse Rating: 150A
4 AWG gauge power and ground wiring is recommended for installation.
Dimensions: 7.48" W x 12.59" L x 2.00" H
Authorized Internet Dealer
1-year Manufacturer's Warranty

Specifications & Details

Power Specifications - Subwoofer Channel

Peak Power @ 4 ohm

1000 watts x 1 channel

Peak Power @ 2 ohms

2000 watts x 1 channel

Peak Power @ 1 ohm

4000 watts x 1 channel

Amplifier Specifications

Series

BX Series

Amplifier Class

Number of Channels

1 - Mono

Total Peak Power Output

4000 watts

Maximum Input Gauge Size

4 AWG

Minimum Impedance Unbridged

1 ohm

Frequency Response

10 - 250 Hz

THD at Rated RMS Power

0.05%

Speaker Level Inputs

Preamp Outputs

Built-in Crossover

Low-Pass (LP)

Low-Pass Crossover Frequency

50 - 250 Hz

Signal-to-Noise Ratio

96 dB

Bass Boost

0 - 18 dB

Remote bass/level controller

Yes

Fuse Rating

50A x 3

Total Fuse Rating

150A

Strappable

Sonic Certified Amplifier

Yes

Amp Bluetooth Connectivity

Hi-Res Certified

Low-Level Input Sensitivity

200mV - 8 volts

What is in the box?

Paperwork

User manual
Warranty/Registration card

WITB: Amplifiers

Amplifier
Mounting Brackets
Wired gain knob (wire separate)
Gain knob wire
Mounting screws (6)
One spare fuse

Warranty and Return Policy

Parts Warranty Duration

1 year

Labor Warranty Duration

1 year

Warranty Provider

Manufacturer

Customer Ratings & Reviews

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Overall rating distribution

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

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By feature average rating

Durability		4
Value		5
Features		4
Design		4
Usability		5

Customer Photos & Videos

Customer Reviews

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Thing slaps!

I was shocked with the overall performance of this amplifier. I researched and looked for months. I decided go with the good old low budget buy and this won the raffle!
Came super fast and I installed it the same day. Install went well. I love the color.As far as durability goes I can only say it’s been going strong for a week and a half now. Only con I can think of is there isn’t an output for another amplifier.That isn’t a problem for me. Overall I can say the rating was well earned!

By Kenneth on December 29, 2025 Checkmark Icon

Verified purchase

2014 Ford Edge

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Add-ons

Belva BAK42

Complete 2-Channel CCA 4 Gauge Amp Kit with RCA Cables and Speaker Wire

(169)

$34.99

List price $59.99

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Belva BXD4K (Like New (Open Box))

$106.24

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