JL Audio XD-FDBU-2

MAXI Fuse Power Distribution Block with One 1/0 Gauge Input and Two 4 Gauge Outputs

JL Audio
Shop all JL Audio

• Premium Series Distribution Block
• MAXI Fuses
• 1/0 or 4 AWG Input
• 4 or 8 AWG Outputs
• Nickel Plated • Includes Grommets and Wrenches

Learn more about the xdfdbu2
Thanks , You Pay:


 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 xdfdbu2.

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

Buy it now

Open box icon Open box $33.99

Acima Logo

No Credit Option

Flexible Lease Payments

Early Purchase Options

Quick Approval Decision

Swoosh Icon Icon of Swoosh

For over 23 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
In-House Experts


JL Audio brand icon

Authorized dealer

  • MAXI Premium Series Distribution Block
  • Fused block for use with power cable
  • Safely splits the main power wire to two amplifiers
  • Inputs: One 1/0 AWG or 4 AWG inputs
  • Outputs: Two 4 AWG or 8 AWG outputs
  • Nickel plated terminals for excellent signal transfer
  • Includes grommets and installation accessories
  • Dimensions: 2-1/2"L x 2-1/4"W x 1-1/8"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Specifications & Details

Distribution Block Specifications
Distribution Block Type
Total Number of Inputs
Maximum Input Gauge Size
1/0 AWG
Total Number of Outputs
Maximum Output Gauge Size
Number of Fuses
Fuse Type
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Item Details


Model Number:




Internal SKU:


Internal Product ID:


Customer Ratings & Reviews

5 star
4 star
3 star
2 star
1 star


Customer Reviews

Sort by:


great fused distro block

Looks and works great. I've seen cheap fuse blocks melt before the fuse in them popped.. that's why I chose these. If you have JL amps, don't skimp on power delivery or fusing.

By Anonymous on September 1, 2019 Checkmark Icon Verified purchase


found this helpful.

IT'S #^*$^#& JL!!

JL makes great products. Even in something as simple as a fuse holder, JL still gives quality to their product. This made my build easier. I was able to split my main cable, fuse each amp and have a clean setup all in one item. While using the protective cap, I'm still able to pull and replace the fuses. I have had so many products I've had to build around for ease of use. It doesn't matter where you place this, you can easily see if the fuse is good and replace when necessary.

By Anonymous on August 5, 2018


found this helpful.

Not bad says JL and does the job

The product works and it’s JL so hopefully it’s quality. I would definitely recommend.

By Justin on April 3, 2018


found this helpful.

Good quality

Great quality product. Everything seems real solid and not cheap at all. Would def. recommend it to anyone in the market

By Corey on March 21, 2014


found this helpful.

The best at a great price

A must have when running 2 amps fused so you can use the correct rating fuse for your amp

By Ace on April 12, 2018


found this helpful.

Solid piece

If you need or want a good blade type "maxi" fuse distribution block then this is it. The multiple gauge usage is nice too.

I would recommend an interior mount though as it may be susceptible to corrosion under the hood.

By Dave on September 8, 2011


found this helpful.

Descent design

I used this junction to split my 0/1 power wire coming off my battery into two 4 gauge wires for my amplifiers. The clear cover is a bit of a tight fit with the case to get on and off, but I suppose that's a good thing. The nice thing about the design is that the fuses can be installed and removed without removing the protective case.

By Sam on January 11, 2013


found this helpful.


I have ordered several items from Sonic. No issues so far. Great products and fast shipping.

By Frank D on September 10, 2020 Checkmark Icon Verified purchase


found this helpful.

Decent product

needed this for a cap install. Wired between my amp and cap. Decent quality working well. Doesn't come with the fuses though.

By greg on May 20, 2020 Checkmark Icon Verified purchase


found this helpful.

Good stuff!

This item did exactly what it should. Great value. I would definitely recommend!!

By Anonymous on August 3, 2018 Checkmark Icon Verified purchase


found this helpful.


Similar Products

Best selling similar products


• One 1/0 Gauge Input
• Two 4 Gauge or 8 Gauge Output
• Satin Chrome Plated Terminals
• All Brass Hardware



Stinger SHD20

HPM Series Power or Ground Distribution Block • One 1/0 Gauge or 4 Gauge Input • Two 4/8 Gauge Outputs • Protective Cover Included • Corrosion Resistant Satin Chrome Finish



Stinger SHD821

• HPM Series Fused Power Distribution Block
• Two 1/0 Gauge or 4 Gauge Inputs
• Four 4/8 Gauge Outputs
• Multiple Input/Output Design
• Protective Cover Included
• Corrosion Resistant Satin Chrome Finish



Related Searches

XD-FDBU-2 small

Item added to your cart.

Price: $39.99

Essential add-ons
Stinger SPF5630

30 Amp Maxi Fuses (3-Pack)



Add to cart
Stinger SPF5640

40 Amp Maxi Fuses (3-Pack)



Add to cart
Stinger SPF5680

3-Pack of 80 Amp Maxi Fuses



Add to cart
Stinger SPF56100

100 Amp MAXI Style Fuses (3-Pack)



Add to cart
Save up to 10 different vehicles in your garage

Add vehicle
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