The Original Ammo Can Speaker .50 CAL A-BOX™ OLIVE DRAB

Free Shipping Worldwide - Free Returns - 2 Year Warranty

.50 CAL A-BOX Reviews:

"Since receiving my 50cal I haven't stopped listening to it, the sound is quality, bass levels and midtones are incredible, played it next to both my Bose sound bars and it blows them away. Awesome product, I will be ordering another:) Love this thing "  - Cye Hayes

"Clear and punchy sound with a rugged design." - Wired Magazine

"I received my A-BOX about a week ago. I love it! Great design, great sound. Can't wait to hit the beach with it this summer! Thanks again for the great product" - Joseph P. 

"I expected something good but the sound is just perfect, I've got 2, 80Watts home audio speakers plugged on an amplifier, with an already very good quality but your box beat them on the punchy aspect, the gradings are just perfect, and no vibrations, every detail is over-clean." - Charles D. 

Also available in BLACK OPS LIMITED EDITION:

These knobs are CNC machined out of architectural alloy 6063 Aluminum.

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The new volume knob goes up to 11 and will be on all .50CAL A-BOXes shipped from now on.

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You can also order the knob(s) separately to upgrade the previous generation rubber/plastic volume knob and chrome selector switch knob if your A-BOX has a selector switch.

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Rugged Sound, Anywhere.
Developed and refined over 15 years with user feedback. The .50 CAL A-BOX is a high-quality wireless speaker built into a genuine design inspired by classic .50 CAL ammo cans. This compact speaker produces crystal-clear sound with great mids and surprisingly deep bass—impressive for its size.

In addition to its eye-catching design, the robust build ensures it can handle minor bumps, drops, and splashes.
Use it at home, in the park, at the beach, or while traveling.

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A peek into the workshop with our technician Robert showing his work.

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All Thodio speakers are built to last with a modular, upgradeable design. Many older versions can be upgraded or repaired with plug-and-play modules, making maintenance easy and cost-effective.

You can open the A-BOX by pulling the latch on the right side, revealing an interior packed with modern tech—designed for easy access and service.

The speaker is reinforced and insulated with 3 different materials to match the acoustic performance of its bamboo-bodied counterpart, the iBox XC.

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The 320-Watt audiophile-grade amplifier powers custom-designed Kevlar coaxial speakers with real silk dome tweeters—delivering full stereo sound with high clarity and volume.

Features:

1. Swappable, High-Capacity Battery Packs

The rechargeable lithium-ion battery lasts up to 34 hours per charge (upgradeable to 68 or 102 hours). Now with individual cell charging for extended lifespan.

• Standard: 34 hrs / 88Wh / 3400mAh / 29.4V / 7x 18650 LG cells

• Optional: 68 hrs / 176Wh / 6800mAh / 29.4V / 14x 18650 LG cells

• Optional: 102 hrs / 264Wh / 10200mAh / 29.4V / 21x 18650 LG cells

These packs last 500–1000 charge cycles, retaining 80% capacity over time. All are easily replaceable/swappable by the owner.
The A-BOX comes with an automatic charger.

The bass reflex tube includes a 3-color light indicator and a voltmeter between optional USB ports for battery status monitoring.

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2. HD Bluetooth 5.1 + True Wireless Stereo

Stream music up to 750 feet in high quality with the optional HD Bluetooth module (aptX / aptX-HD / AAC / SBC).
Connect 2 speakers wirelessly with TWS for enhanced stereo separation.

Party mode (available on request): connect multiple speakers simultaneously.

3. Guitar Input

Turn your A-BOX into a portable guitar amplifier with the optional guitar input.

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4. Fast Charging: Dual USB Ports with Voltmeter

Recharge your smartphone, tablet, laptop, or other USB devices.

• USB Type-C port with PD 3.0 (up to 45W)

• USB Type-A port with QC 3.0 (up to 18W)

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5. Mini Jack Aux Input Connect any device via the included gold-plated mini jack cable.

Specs:

• Fully handmade
• Free worldwide shipping
• Ships from US, EU, or Asia warehouse (with tracking)
• Family-owned small business
• Reinforced steel housing with powder coating
• 2 x 4" Kevlar coaxial speakers + 2 x 3/4" real silk dome tweeters
• 320W Class D amplifier
• Frequency range: 40–20,000Hz
• SPL: 105 dB
• Weight: 12.1 to 13.4 lbs (depending on battery)
• Guitar amplifier function (with optional input)
• Swappable battery: 34–102 hours
• Dual USB ports (Type-A & Type-C with voltmeter)
• Red anodized aluminum volume knob with switch
• Bass reflex battery indicator light
• Dimensions: 11.8 x 6.1 x 7.7 in / 30 x 15.5 x 19.5 cm
• Includes charger (100–240V AC, US/EU/UK/AU plug)
• Includes 3.5mm AUX cable
• 2-year warranty