What Portable Speaker Products Does BETA THREE Offer?
When performers, content creators and mobile event operators search for battery-powered PA solutions that combine professional output with grab-and-go convenience, the question of which product fits best often comes down to driver configuration, coverage pattern and weight. BETA THREE, a professional audio brand with more than 38 years in the industry and distributors across 123 countries and regions, addresses this demand with two distinct portable PA products: the MB3 Magic Box (MB3) and the MB3-X (MB3 Magic Box-X). Both sit within a dedicated Portable PA Products line engineered for battery-powered, multi-source operation in spaces ranging from street corners to small hospitality venues.
The MB3 Magic Box: Three-Way Performance in a 7.5 kg Cabinet
The MB3 Magic Box is positioned as a three-way active portable PA loudspeaker designed for musicians, performers and prosumers who require balanced sound reproduction from a single self-contained unit. Its defining hardware feature is a true 3-way coaxial design combining an 8-inch woofer, a 5-inch midrange driver and a 1-inch high-frequency coaxial driver. This architecture is engineered to deliver balanced lows, natural mids and crisp highs from one cabinet without requiring a separate subwoofer or monitor.
Output and Acoustic Specifications
The MB3 produces up to 110 dB SPL continuous and 116 dB peak at 1 m, a range suited to small venue and outdoor reach. Its amplifier output is rated at 200 W RMS, 400 W music and 800 W peak, providing headroom for live settings where transient dynamics matter. The frequency response extends from 60 Hz to 20 kHz (-3 dB), and the 90° × 90° dispersion pattern directs sound toward the audience rather than scattering it laterally. The cabinet measures 259 × 292 × 390 mm (W × D × H) and has a net weight of 7.5 kg.
Connectivity and Controls
The MB3 accommodates multiple simultaneous sources through 3 × XLR/TRS combo inputs plus a 3.5 mm AUX input, accepting microphones, guitars, keyboards and line-level devices. Wireless playback is handled via Bluetooth 5.0 with SBC / AAC codec support, A2DP for stereo audio streaming and AVRCP for remote transport control. Two MB3 units can be wirelessly paired using the TWS stereo function, creating a Bluetooth stereo spread up to 20 m without a wired signal chain. An XLR Main In/Out enables wired linking between units when extended coverage is needed.
DSP, Placement and Battery
An integrated digital effects DSP provides Reverb and a sweepable Notch filter for controlling microphone feedback frequencies — a practical feature for performers relying on close-miked vocals. A Shape Switch toggles between Music and Speech EQ presets to adjust tonal balance for different content. Battery operation extends up to 8 hours typical use, supporting busking sessions, outdoor events and long performances away from fixed power. The cabinet supports four placement configurations: upright, tilt-back, wedge monitor and speaker stand, adapting to stage, rehearsal room and event setups. An integrated top handle makes the 7.5 kg cabinet straightforward to carry between locations.
The MB3-X: Wide-Coverage Clarity in a Compact 5.2 kg Form Factor
Built on the same MB3 platform, the MB3-X (MB3 Magic Box-X) takes a different acoustic direction. Where the MB3 emphasizes multi-source performance balance through its three-way driver array, the MB3-X is calibrated for speech-first clarity and wide room coverage in corporate AV, education, worship, training and small hospitality scenarios.
Coverage Pattern and Driver Configuration
The MB3-X uses a 6-inch LF driver (4 Ω) paired with a 1-inch silk diaphragm HF driver (4 Ω), crossed over at 1.7 kHz with a -24 dB slope and a 40 Hz low-cut filter. The distinguishing acoustic specification is its coverage pattern: 140° H × 120° V average from 2–10 kHz, one of the widest patterns in this product class. This wide dispersion is specifically intended to maintain vocal intelligibility consistently across an audience area rather than concentrating output in a narrow beam. The amplifier configuration reflects a bi-amp design — LF Class D 43 W ±10% @ 4 Ω and HF Class AB 15 W ±10% @ 4 Ω — matched to the output requirements of each driver section.
Maximum SPL and Dimensions
The MB3-X delivers 109 dB continuous and 115 dB peak at 1 m, appropriate for indoor and small outdoor spaces. Its frequency response reaches 75 Hz – 20 kHz (-10 dB). The cabinet dimensions are 220 × 249 × 336 mm (W × D × H), with a net weight of 5.2 kg and gross weight of 6.2 kg, making it noticeably lighter than the MB3 and manageable for one-hand carry via the integrated top handle.
Mixer, Effects and Deployment Features
The MB3-X integrates a three-channel mixer with per-channel input editing and a 3-band EQ (LOW, MID, HIGH) for on-the-fly tone shaping. Built-in effects include Reverb, Delay and Compressor, and three voicing presets — LIVE, CLUB and MONITOR — allow users to switch quickly between performance, playback and monitoring configurations without deep menu navigation. Inputs follow the same format as the MB3: 3 × XLR/TRS combo plus a 3.5 mm AUX input. A USB 5 V / 500 mA port provides power-only output for charging auxiliary devices. The ECO / MAX battery modes let users balance battery runtime against output level depending on the event requirement. Deployment options include 35 mm stand mount, vertical and floor monitor positions.
Shared Platform Characteristics
Both products reflect BETA THREE's stated design approach of combining professional connectivity standards with battery-powered mobility. Both support 100–240 V AC, 50/60 Hz for international use and include XLR Main In/Out for wired system expansion. Both carry integrated handles and support stand-mount deployment. The product line is distributed through BETA THREE's global distributor network across 123 countries and regions.
Intended Use Scenarios
The MB3 is positioned for musicians, performers, buskers, outdoor event operators, wedding and pop-up organizers, and users who need a compact system capable of handling microphone, guitar and keyboard sources simultaneously with extended battery life. The MB3-X targets corporate AV, education and worship environments, training and presentation rooms, and content creators who prioritize speech intelligibility and fast repeatable setup over maximum output.
Together, the MB3 and MB3-X form BETA THREE's current Portable PA Products offering — a two-model lineup addressing both performance-balanced portable sound and speech-optimized wide-coverage applications within a common battery-powered platform.
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