FREE SHIPPING, FREE RETURNS, 0% TARIFFS
THE #1 BEST SELLER · FIELD-READY
Makes every other speaker
sound like a toy.
“Played it next to both my Bose sound bars and it blows them away.” — Cye Hayes, verified buyer
320
Watts
7
Days of play
0+Years
Field-proven
60-day money-back · Free shipping & returns · 0% tariffs
New Anodized Aluminum A-BOX Knob(s)
BATTERY KING, PLAYS FOR UP TO A WEEK
THE ONLY SPEAKER WITH AUTOPLAY
Specifications
Sound
- Amplifier
- 320 W Class D
- Peak volume
- 111 dB
- Drivers
- 2× 4″ KSX4 coaxial Kevlar + silk-dome tweeters
- Frequency range
- 40–20,000 Hz
Power & Battery
- Battery life
- 34 / 68 / 102 h (by pack)
- Charging
- USB-C fast charging
Build & Dimensions
- Cabinet
- Genuine .50 CAL M2A1 ammo can — mil-spec satin black steel
- Dimensions
- 30 × 15.5 × 19.5 cm (11.8 × 6.1 × 7.7 in)
- Weight
- 12.1–13.4 lb (5.5–6.1 kg), by battery
Connectivity
- Bluetooth
- 5.1
- WiFi
- Optional (Fully Loaded)
- Guitar input
- Yes (Fully Loaded)
In the Box
- Warranty
- 2 years
Turn it up to 11!
Taking the design and durability of the original ammo can speaker to the next level with new Thodio design anodized aluminum power/volume control and selector switch knobs.
These precision machined bright metallic red knobs with highly visible laser engraved details have been designed and prototyped over the last few months.
These knobs are milled out of architectural alloy 6063 Aluminum.
The new volume knob actually goes up to 11 not just 10 and will be on all .50CAL A-BOXes ordered from now on.
The selector switch knob will be on ammo can speakers with Guitar input and/or Wifi options added.
You can also order the knob(s) separately if you would like to upgrade the previous generation rubber/plastic volume and chrome selector switch knob on your A-BOX if your A-BOX has a selector switch.
Knobs ordered separately here on the page to upgrade older A-BOXes will start shipping mid May 2024).
Instructions for replacing the volume knob:
Just pull off the old knob and push on the new one, it’s really easy.
Instructions for replacing the selector switch knob:
Use a small hex key to loosen the set screw and then remove the knob. The new knob is push on.
Worldwide free shipping.
New Anodized Aluminum A-BOX Knob(s)
Sale price$25.00
BORN FOR THE OUTDOORS
Built like a tank. Sounds like a concert.
The tailgate. The trailhead. The middle of the desert. A real .50 CAL ammo can shrugs off rain, dust, drops, and heat — then plays loud enough to own the space. Throw it in the truck and forget about it.
"NEW BLUETOOTH CHAMPION!" - Lewis Hilsenteger (Unbox Therapy)
BUILT TO OUTLAST THE REST
Buy it once. Hand it down.
Thodio has been handbuilding speakers since 2005 — and in 2007 made the first portable Bluetooth speaker on the market, before any big name. Twenty-one years on, every unit is still handmade, repairable, and upgradeable. Swappable battery, serviceable by design. Customers from 15 years ago still send theirs in for an upgrade instead of replacing it — the kind of speaker you hand down, from son to grandson.
Questions
What if I don't love it?
Try it for 60 days. If it's not for you, send it back for a full refund — including return shipping. No restocking fees.
Is it really weatherproof — how tough?
It's built from a real .50 CAL ammo can: sealed steel that shrugs off rain, dust, drops and heat. Made to be thrown in a truck and abused. (Tough by design — not tested to a specific IP rating.)
How loud does it get / will it fill an outdoor space?
320 watts of full-range output — loud enough to fill a backyard, a beach or a campsite and own the space outdoors.
How long does the battery last and how do I charge it?
Choose your pack: 34, 68 or 102 hours of playtime per charge — up to about a week on the largest. Recharges over USB-C fast charging.
What's the difference between Standard Issue and Fully Loaded?
Standard Issue ($539) = Bluetooth + USB. Fully Loaded ($679) = Bluetooth + WiFi + guitar input + USB. Both come in Olive Drab or Black Ops, with your choice of battery.
Is it really built from a real ammo can and handmade?
Yes. Every A-BOX is hand-assembled in the Netherlands from a genuine .50 CAL ammo can. Thodio has handbuilt speakers since 2005.
How long does shipping take?
Free worldwide shipping with tracking. (Add your exact dispatch/delivery window here.)
READY FOR THE OPEN AIR?
320 watts. A week of playtime. Built to be abused and to outlast it all.
Free shipping & returns · 2-year warranty · 60-day money-back