MB3 Magic Box Pro

Battery-Powered Portable PA Speaker

True 3-Way Design

SHARC DSP Engine

4-Channel Pro Mixer

OTG & Phantom

Flexible Placement

MB3 Magic Box Pro | 3-Way Battery-Powered Portable PA Speaker | 4-Channel Pro Mixer + SHARC DSP

Name: MB3 Magic Box Pro | 3-Way Battery-Powered Portable PA Speaker | 4-Channel Pro Mixer + SHARC DSP
Brand: Beta Three
Price: 839.00 USD
Availability: OutOfStock

$839.00

Description

Specifications

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MB3 Pro upgrades MB3 with a 4-channel pro mixer, +48V phantom power, SHARC DSP, USB-OTG recording, zero-latency wireless cascade, and higher peak SPL.

MB3 Magic Box Pro is a 3-way, battery-powered portable PA speaker with pro mixer—built for creators, performers and mobile entertainers who want more output, more control and more connectivity in the same grab-and-go format. The true 3-way coaxial design pairs an 8" woofer with a 5" + 1" coaxial mid/HF, giving you tight low end, clear vocal presence and coherent imaging for real-world gigs.

At the core is a SHARC DSP engine (192 kHz, 32-bit floating-point) that handles crossover, voicing, EQ, dynamics, limiting and protection—so your sound stays clean and controlled even when you push it. Four application modes (Outdoor / Indoor / Studio / Karaoke) make it fast to tune for different spaces and use cases.

For creators, MB3 Pro is built around workflow: a versatile 4-channel pro mixer with XLR/TRS combo inputs, +48 V phantom power (on two channels) and Hi-Z/Lo-Z switching for instruments and line sources. You also get XLR main in/out for wired linking, Bluetooth and USB playback, plus USB-C OTG for direct live streaming/recording and device power—ideal for content, rehearsal and pop-up stages.

Portable by design, it runs on an internal LiFePO₄ battery (typical 6–8 hours at medium level) and supports flexible placement—upright PA, wedge/monitor and pole-mount—so it adapts instantly to the room. With up to 116 dB (1 m) / 118 dB peak output and 62 Hz–19 kHz (-10 dB) bandwidth, MB3 Magic Box Pro is the step-up portable PA that shows up ready.

Acoustics Performance

Frequency Response (-10 dB):

62Hz-19kHz

Maximum SPL(1m):

118 dB peak

Coverage(HxV):

110° x 100°

Channel EQ Range:

HIGH / MID / LOW ±9dB gain

System Bandwidth(DSP/ Amplifier):

20 Hz-20 kHz

THD+N:

<0.45%

Transducers

LF Driver:

1x 8" woofer, 100 W

MF/HF driver:

1x 5"+1"coaxial, 50W + 50W rating

Inputs & Connectivity

Analogue Inputs:

1x8" woofer,100W

AUX:

1 x 3.5mm jack

Main In:

1 x XLR

Main Out:

1 x XLR(mix out)

Phones / Monitor:

1x 6.35mm stereo

Digital / Wireless:

Bluetooth®audio; USB-A media (5 V/0.5A); USB-C OTG audio(5 V/2 A)

Wireless Cascade:

TX/RX, up to 100 units, typical 20m range

Input Impedance(balanced):

Line ≈ 2kΩ; mic ≈ 2.7 kΩ

Amplication & DSP

Topology:

LF Class-D; MF/HF Class-AB

Output Power(post-limiter):

LF 100W @ 2Ω; MF 35 W @ 4Ω;HF 13W @ 4Ω

DSP:

32-bit SHARC; crossover, EQ, voicings, dynamics, limiting

Modes:

Outdoor/Indoor/Studio/Karaoke(K-song)

Power & Battery

Mains:

100-240V~, 50/60Hz, IEC inlet

Battery:

LiFePO₄, 22.2V/4.4Ah

Charge Time:

≈5h

Runtime:

≈6-8h (medium level)

Mechanical Data

Cabinet:

moulded enclosure; metal grille; aluminium rear panel

Dimensions (WxDxH):

259 x 292 x 390mm

Weight:

7.8kg net;9.5kg gross

Go Live, Sound Pro

Turn any space into a creator-ready rig with a battery-powered portable PA speaker that’s built for content.

Plug in your mic and instrument, switch on +48V phantom power when you need it, then use USB-C OTG to stream or record with clean, direct digital audio—fast setup, confident results.

Dial In Your Sound, Anywhere

MB3 Magic Box Pro works like a serious, portable reference for practice and small sessions — tight, controlled, and easy to shape.

The SHARC DSP voicing and onboard control help you lock in vocal presence and instrument balance, so what you rehearse is what you perform.

More Output
When It Counts

When the set gets louder and the room gets busier, you need headroom — not hope.

This upgraded 3-way battery PA delivers the punch and clarity to cut through live performance, street sessions, and pop-up stages, so your mix stays defined when the energy rises.

Plug In, Link Up,
Set Up Fast

Built for gigs that move, MB3 Magic Box Pro keeps connections simple and flexible: mic, instrument, playback, and linking options ready on the side panel.

Place it upright, wedge it as a monitor, or mount it on a stand — then expand your coverage when you need to scale.

FAQs

What is the BETA THREE MB3 Magic Box?

MB3 Magic Box is a battery-powered portable PA speaker with built-in mixer, designed for busking, karaoke, small gigs, rehearsals, and pop-up events with fast plug-and-play setup.

Can I use MB3 on a speaker stand or as a monitor?

Yes. It supports flexible placement for real gigs — upright PA, wedge/monitor, or pole-mount depending on your setup.

Can I stream music wirelessly to MB3 Magic Box?

Yes. MB3 supports Bluetooth playback, making it easy to run backing tracks without extra gear.

Is MB3 good for busking and street performance?

Yes. MB3 includes integrated digital effects, including reverb, plus feedback-control tools designed for real-world live use.

Does MB3 Magic Box have built-in effects and anti-feedback control?

Yes. MB3 includes integrated digital effects, including reverb, plus feedback-control tools designed for real-world live use.

Can I plug in a microphone and an instrument at the same time?

Yes. MB3 is built for plug-and-play: connect mic, instrument, and playback sources straight into the onboard inputs and get working fast.

Played - Tested - Approved

FREE SHIPPING

Free shipping on portable PA speakers & column PA systems. Duties/taxes shown at checkout, if any.

CUSTOMER SERVICE

Mon to Fri support for set-up, orders & product advice. Fast replies from our audio team.

SECURE PAYMENT

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CONTACT US

Questions about portable PA speakers, demos or dealers? Email support@betathree.org

MB3 Magic Box Pro | 3-Way Battery-Powered Portable PA Speaker | 4-Channel Pro Mixer + SHARC DSP

Acoustics Performance

Transducers

Inputs & Connectivity

Amplication & DSP

Power & Battery

Mechanical Data

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