Garage
Shop

Belva BXA6404

640W Peak BX-Series Class A/B 4-Channel Car Audio Amplifier

Belva
Shop all Belva
Product videos
highlight-star-icon

• 80 watts x 4 channel @ 4 ohm
• 160 watts x 4 channel @ 2 ohm
• Bridged: 320 watts x 2 channel @ 4 ohm
• Total Peak Power: 640 watts
• Class A/B 2 ohm Stable 4-Channel-Channel

Learn more about the bxa6404
Was $199.99 Details
Thanks , You Pay:

$79.99

 with warranty

Heads up

We confirm fitment and offer accessories for speakers. Please set your vehicle first if you would like to purchase more than one bxa6404.

Set your vehicle or Return to product page
shipping truck icon Free shipping in USA. Provide zip for delivery date.
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 24 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

Choose from any of our many bundles that include this product for even more savings!

Belva BXA6404 with Belva 8 Gauge Amp Kit

640W Peak BX-Series Class A/B 4-Channel Car Audio Amplifier

(42)

$119.99

List price $259.98

Product Highlights


• 80 watts x 4 channel @ 4 ohm
• 160 watts x 4 channel @ 2 ohm
• Bridged: 320 watts x 2 channel @ 4 ohm
• Total Peak Power: 640 watts
• Class A/B 2 ohm Stable 4-Channel-Channel

Description


Belva brand icon

Authorized dealer

Belva 2 Ohms 4 Channel Amplifier
High And Low Level Input Bass EQ, Power Circuitry, Power Output Selectable Crossover Modes
Mosfet Class AB Amplifier

Product Details:

  • BX Series Class A/B 2 ohm Stable 4-Channel-Channel Amplifier
  • Peak Power Rating:
    • 4 ohm: 80 watts x 4 channel
    • 2 ohm: 160 watts x 4 channel
    • Bridged, 4 ohm: 320 watts x 2 channel
  • Total power output: 640 watts
  • Pulse Width Modulated MOSFET power supply
  • LED Power/Protect Light
  • Speaker-level (high-level) inputs
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Input sensitivity:
    • Low level: 200mV - 8 volts
  • Frequency Response: 10 - 30,000 Hz
  • Total Harmonic Distortion (THD): 0.05%
  • Signal to Noise Ratio: 96 dB
  • Variable high-pass filter: 80 - 1,200 Hz
  • Variable low-pass filter: 50 - 250 Hz
  • Variable Bass Boost: 0 - 18 dB
  • Fuse Rating: 50A
  • 8 AWG gauge power and ground wiring is recommended for installation.
  • Dimensions: 7.48" W x 11.02" L x 2.00" H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
PDF IconBelva BXA6404 owner’s manual

Best selling similar products

Alpine KTA-450

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

(17)

$269.95

List price $330.00

NVX XQA10004

• 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-Channel Amplifier

$399.99

List price $479.99

Kicker CXA360.4

• 65 watts x 4 channel @ 4 ohm
• 90 watts x 4 channel @ 2 ohm
• Bridged: 180 watts x 2 channel @ 4 ohm
• Total RMS Power: 360 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

(9)

$195.96

List price $249.99

Specifications & Details


Power Specifications - Full Range Channels
Peak Power @ 4 ohms
80 watts x 4 channel
Peak Power @ 2 ohms
160 watts x 4 channel
Bridged Peak/Max Power
320 watts x 2 channel
Amplifier Specifications
Series
BX Series
Amplifier Class
A/B
Number of Channels
4-Channel
Total Peak Power Output
640 watts
Maximum Input Gauge Size
8 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
Frequency Response
10 - 30,000 Hz
THD at Rated RMS Power
0.05%
Speaker Level Inputs
Yes - with included adapter
Preamp Outputs
No
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
80 - 1,200 Hz
Low-Pass Crossover Frequency
50 - 250 Hz
Signal-to-Noise Ratio
96 dB
Bass Boost
0 - 18 dB
Remote bass/level controller
No
Fuse Rating
25A x 2 
Total Fuse Rating
50A
Strappable
No
Sonic Certified Amplifier
No
Amp Bluetooth Connectivity
No
Hi-Res Certified
No
Low-Level Input Sensitivity
200mV - 8 volts
What is in the box?
Paperwork
User manual
WITB: Amplifiers
Amplifier
Wired gain knob (wire attached)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

BXA6404

Weight:

5.62lbs

Internal SKU:

bxa6404

Internal Product ID:

184155

Product and How-to Videos


Customer Ratings & Reviews



5 star
89%
4 star
11%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
4.7

Customer Photos & Videos


Customer Reviews

Sort by:

Loading...

Great Budget Amp

I wired this amp to four 6.5 speakers. It’s really worth the money. I bought a truck and the factory amp was out. I went ahead and used my Infinity 6.5 and bought a pair of Polk 6.5 paired with the Belva amp. Sounds Great!

By Christopher on March 27, 2022 Checkmark Icon Verified purchase

44

found this helpful.

Great Budget Amp

I wired this amp to four 6.5 speakers. It’s really worth the money. I bought a truck and the factory amp was out. I went ahead and used my Infinity 6.5 and bought a pair of Polk 6.5 paired with the Belva amp. Sounds Great!

By Christopher on March 27, 2022

36

found this helpful.

great price, great quality

Ordered this in a pinch and it came quick! the price was great and product worked great too!

By Danielle on July 18, 2022 Checkmark Icon Verified purchase

35

found this helpful.

Great Product Value

I needed to replace an old amp in my vehicle and didn't want to spend a lot of money. this Belva amp has fit the bill nicely. it sound great and gives the power I need for the system. it is perfect for what I needed it for. I would definitely recommend buying it.

By SCOTT on June 20, 2023 Checkmark Icon Verified purchase

31

found this helpful.

New 4 channel

A nice looking amp not to small but just the right size good power

By Peat on August 28, 2022

31

found this helpful.

Nice reasonably 4 channel amp works well in my truck pushing a pair 6.5 an a pair of 6x8 sound pretty amazing an the shipping was great . I have been purchasing my car audio from here since 2004 good products

By Edward on July 29, 2024 Checkmark Icon Verified purchase

5

found this helpful.

Great budget amp

Perfect amp to add some more small speakers

By Kevin on May 22, 2024 Checkmark Icon Verified purchase

3

found this helpful.

By Charles on April 13, 2025 Checkmark Icon Verified purchase

By William on April 7, 2025 Checkmark Icon Verified purchase


Save up to 10 different vehicles in your garage

Add vehicle
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