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DMNDBXX

DMNDBXX XX4 preorder ships September 30th

DMNDBXX XX4 preorder ships September 30th

$3,199 USD
$3,499 USD $3,199 USD
Sale Sold out
Aluminum Anodize Color

The DiamondBoxx XX4 represents the pinnacle of portable audio engineering—the largest, most powerful boombox we've ever created.


Designed with uncompromising focus on superior sound quality, premium materials, extreme loudness, and thunderous deep bass, the XX4 delivers an unparalleled listening experience. Its high-output 3-way stereo speaker configuration  aka (2.1) features a dedicated 12-channel Class A/B amplifier (with individual amplification for every driver, including dual channels per subwoofer), ensuring crystal-clear audio at any volume level—even when cranked to maximum for all-day playback.

Another DEMO Video Short here

Key Features

  • 800 Watts RMS power (1200W peak) from a 12-channel Class A/B amplifier
  • Four 8.5" neodymium Dual Voice Coil (DVC) subwoofers, each coil independently amplified for massive, precise bass
  • Two high-output 8.5" neodymium midrange drivers and two neodymium horn-loaded PEI dome compression tweeters, each with dedicated amplification
  • Bluetooth 5.1 with aptX HD for high-resolution wireless audio and True Wireless Stereo (TWS) pairing capability
  • 5-band analog EQ plus independent subwoofer level control for precise tuning
  • Fully adjustable stereo expansion control to create an immersive, wide soundstage
  • Zero-latency analog inputs (3.5mm stereo) — perfect for musical instruments, gaming, video, or any application where timing is critical

The XX4 incorporates the latest-generation lithium-ion battery technology offering long playtime (5-20 hours volume dependent), loads of power on demand for powerful bass, and long life expectancy  1000 cycle full discharge and recharge (twice a week is about 10 years) 

Need even longer runtime? Pair it with our C1000 external battery for up to 20–80 hours of continuous runtime. While substantial in size and weight (70 lbs), the XX4 uses high-end lightweight materials and includes side handles for easy transport by two people—making it truly portable for events, outdoor gatherings, or anywhere AC power isn't available.

Each XX4 is hand-built in Camarillo, California, and shipped directly to your door.

This beast of a wireless, battery-powered system replaces an entire DJ setup: a pair of speakers, amplifier, dedicated subwoofer, and Bluetooth receiver—all without cords or outlets. It delivers earth-shaking volume, deep low-end extension, clear vocals, and sparkling highs, all on pure battery power.

Iconic VU Meters

Featuring 186 surface-mount LEDs in stunning analog-style VU meters—a signature design element from Tony D'Amore's design heritage, echoing his original college speakers and seen across D'Amore Engineering's high-end car audio amplifiers and past products.

Specifications

  • Dimensions: 35.5 × 24 × 11.5 inches (including feet, handles, and knobs)
  • Bluetooth: 5.1 aptX HD with TWS
  • Subwoofers: 4 × 8.5" neodymium DVC
  • Midrange: 2 × 8.5" neodymium high-output wideband
  • Tweeters: 2 × 1" neodymium dome, horn-loaded
  • Amplifier: 800W RMS (1200W max)
  • Frequency Response: 32Hz–22kHz (±3dB)
  • Weight: 70 lbs
  • Battery Life: >1000 recharge cycles 
  • Charging: Play music while charging; 0–100% in 5-6 hours with included 5A charger 

What's Included

  • DiamondBoxx Model XX4
  • 5A lithium-ion battery charger
  • 3.5mm stereo audio cable
  • Owner's manual

Experience the ultimate in portable power and fidelity. The XX4 isn't just a speaker—it's a statement. Handcrafted for those who demand the best.


Owner's Manual

Customer video review 

 

View full details

Customers praised this powerful Bluetooth speaker for its "clear, crisp and clean" sound quality and exceptional bass that "hits like a house system." Many described it as "the best boombox I ever heard" with unmatched clarity. However, some faced charger issues and noted limited color options. One customer mentioned the product isn't waterproof.

Quality (positive)Sound (positive)Bass (positive)Speaker (positive)Service (positive)
  • 5 stars: 75 (99%)
  • 4 stars: 0 (0%)
  • 3 stars: 1 (1%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
M
Michael Elias
I have two XX4 units and pro18sub on the way

I have two XX4 units and pro18sub on the way.I love listening to all types of music on my Diamondboxx.It is clear, crisp and clean sounding. No other portable stereo can compare.

J
James King
Twins for the win!

I couldn't just do one!!! So- I have twin silver's!! I want people to experience the uniqueness of the XX4's and 💎 DiamondBoxx delivered what quality,bass,loud as F,clarity and the wow factor.., I love the fact that I got the B stocks~ Even more unique.

J
JAMES CAMPBELL
Sweet

Love the color of the blue knows. Stands out on the black

D
David Blagrove
Deep Purple

I was hoping that the knobs would have been a deeper purple

C
Christopher elam
Amazing!

Amazing!

J
Julian Londono
It’s not the B-Stock

I didn’t order the B-Stock, I ordered the 10th anniversary 100-unit edition, though they claim they sent me the “B-Stock unit.” The one I actually ordered finally came, all seems to be in order except for the charging, the charger won’t turn green and instead gets steaming hot, I’m afraid it might damage the speaker. I reached out to Diamondboxx and still have not gotten a response from them.

S
Steven Thomas
Not b stock #011

The XX4 is a big upgrade over the XL3 great speaker I’m glad I own a XL3 because that’s more lighter than the XX4 is it worth the money yes it’s the best boombox I ever heard and very loud bass hits like a house system I recommend this product

T
Tammie sims
best work ever done xx4

very happy with my purchase it was worth the wait xx4 is awesome no other Bluetooth speaker don’t want to step to the XX4 it will lose

W
Wilfredo Crespi
Handy

With having spare knobs. I can change the attitude of my XX4. Something to consider. When owning such a masterpiece.

P
Philip Michaud
XX4 Review

Beyond expectations! Build quality is perfect and the speaker is such a powerhouse. Very happy with my purchase and will be a DiamondBoxx customer for years to come. Thank you DB, and Tony D’Amore!

W
Wilfredo Crespi
One of a kind

Well , Where to start. In today’s world you have so many Bluetooth speakers. And many good or bad reviews and comments. My friends the XX4 is in a class by itself. You have to witness the great craftsmanship in person. As person that purchased it. Sounds great, Bluetooth connection on point. From my experience with this beast amazing. It’s kinda funny me calling it a beast. Because it’s one of the most beautiful speakers built. Take it from me you will not be disappointed.

H
Hector Velez
Amazing speakers top of the line

It was worth the wait amazing solid well built speakers. The technology put on this speakers are amazing. Thanks again Diamondboxx!!

D
David Mendell
My new best friend

Ma family and I always have music playing. We all have different taste for music but absolutely everything sounds good on this XX4. There is no substitute for this speaker. It’s my new best friend.

T
Thomas Lundquist
Amazing sound quality, made in USA

I went down many rabbit holes looking for the best bluetooth speaker out there, and purchased the XL2 (before the XL3 was available). I am so VERY happy with my purchase! The highs are beautiful and balanced, the mids and lows are present and offer a ton of fun at parties. We played this at my wedding and a bunch of music professionals were gathered around admiring the clarity amd response of the XL2 boombox. One has since used it for clearing up his mixes! Overall amazing product. Thank you Tony and team!

R
Robert Slaughter
The Best!!

I have found DiamondBoxx products to be the Best sounding on the Market and are a Work of Art in build and sound!!

M
Marc Colangelo

FOR THE MONEY I HAVE TO PAY FOR THE NEW XX4 I SHOULD HAVE MORE COLORS TO CHOOSE THEN BLACK IM JUST SAYING

M
Malvin Flores

I CAN NOT WAIT TO HEAR MY PURCHASE…I HAVE MANY BLUETOOTH BOOM BOXES..I HOPE THIS WILL BE MY ONE OF MANY PURCHASES.

T
Thomas Vitomski

This is my third purchase from DiamondBoxx. It's a great product and a pleasure to shop with. We are still working on getting the true wireless stereo to function. Customer service is trying to help me.

J
J. Crowley

Layouts and display are very helpful and concise. It& s been an absolute pleasure being a loyal customer to DIAMONDBOXX speakers. I& m seeing the quality in their value is unmatched and for that I& m quite grateful. Thanks you team for your spectacular delivery !!

A
Augusto Carrillo

Quick interface- seemed to have a lot of payment options which is surprisingly rare. Can’t wait for battery powered bass

R
ROBERT W EVANS

I just bought my 4th DiamondBoxx speaker, I love their speakers, sound quality is second to none and can’t report on customer service or problem solving, always received in timely manner, no problems with any speakers (5 years, 3 speakers), no they aren’t cheap, when you listen to their sound your ears will understand the value!

K
Kenneth Steen

Thanks for everything I'm trying to build my credit up thanks again I have not received it yet my diamond box has not came yet

T
Tyron Thomas

I have been wanting an L3 for months and and happy to finally be able to pick one up:) super excited to have one.

S
Samuel Casto

Fast checkout, need to have a shipping calculator before actual checkout 'Excellent ' product no complaints at all! Thanks Diamond Boxx!

T
Tara Story

I like that you reminded me of not finishing my order and offered me 5% off. Thanks!

S
Salomon Martinez

Excited to try your equipment if it is awe I am going to buy one of your diamond boxs

T
Tracy Sheppard

I've been trying to contact you thu email. Problems with my dimondboxx L3. Please contact me.

E
Enrique Vega

Nice in depth info about the products. Prices are a bit high but well worth the money. Buying and financing options are also great

G
Gregory Hill

Diamond box Great product love the speakers sound awesome.no one called back left a message and one answered my call.

T
Thomas vitomski

Customer service couldn't have been more helpful or nicer. Went beyond expectations.

M
Mario moreno

Well the word diamondboxx its just quality for me well built speaker box the sound and bass that the speaker reproduce its nothing but just clear voice no distorcion it all the only thing that i will suggest its that they should give customers and eta approx on when are they are going to send the product i know its hard because they are hand made but at least say 3 weeks or 4 weeks and really customer will be happy waiting for it but when you contact them the return email only says that they will send you and email telling you that they ship it already i got mine within 12 days so i was golden knowing that i was very desperate so get my new speaker box at the end of the day it was worth it buy yes i will just suggest that just to meke things better all do i do live in california too

H
Hawk Pantera

You missed out on an xl2 customer because you don't have a pre-order drop down on your website,,,you might want to get w/your it guy.
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