BLOG
One Box for the
Whole Gig
Whole Gig
MB3 is a 3-way battery-powered portable PA speaker that’s ready for band sets and live vocals —
quick to place, easy to dial in, and loud enough to feel like a 'real' rig.
Use it upright as mains, lay it down as a wedge monitor, or pole-mount it for clean projection in pubs, rehearsals and small stages.
quick to place, easy to dial in, and loud enough to feel like a 'real' rig.
Use it upright as mains, lay it down as a wedge monitor, or pole-mount it for clean projection in pubs, rehearsals and small stages.
Street-Proof Sound,
Finished on the Spot
Finished on the Spot
For pop-ups and busking, MB3 keeps your vocal present and your backing tracks controlled with integrated DSP effects — including built-in Reverb plus a dedicated
Anti-Feedback Notch for confidence in loud, reflective spaces.
Plug in, switch on, and stay in the moment.
Anti-Feedback Notch for confidence in loud, reflective spaces.
Plug in, switch on, and stay in the moment.
Carry Anywhere.
Play Longer.
Sound Bigger
Play Longer.
Sound Bigger
Built for long sessions, MB3’s lightweight grab-and-go design runs on up to 8 hours of battery power,
then scales when you need more space: pair two units for True Wireless Stereo (TWS) or extend coverage
by linking systems for wider reach at events.
then scales when you need more space: pair two units for True Wireless Stereo (TWS) or extend coverage
by linking systems for wider reach at events.
All the Connections You Actually Use
MB3 is a portable PA speaker with mixer-style connectivity: 3× XLR/TRS combo inputs, 3.5 mm aux, Bluetooth streaming, plus XLR main in/out for expansion — so you can run mic + instrument + playback cleanly without extra boxes.
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
Stay Plugged In
Stay tuned for new arrivals, special offers, and more.
Or just send us an email at info@betathree.com
Or just send us an email at info@betathree.com