Montarbo B112 is a versatile active 2-way loudspeaker designed for small PA and portable sound applications. Its 12” low-frequency and 1.35” high-frequency drivers deliver solid bass, clear mids, and dependable clarity for live performance, DJ sets, and corporate events. Onboard DSP with FIR filtering ensures controlled frequency response, while Bluetooth® 5.0 and dual inputs with line output provide flexible playback and multi-speaker integration. The polypropylene cabinet and convection-cooled amplifier guarantee durable, silent, and reliable operation.
OVERVIEW
Montarbo B112: portable performance, balanced sound
B112 is a professional active 2-way loudspeaker designed for small sound reinforcement systems and mobile PA applications that require higher SPL capability, extended low-frequency performance, and controlled coverage. Equipped with a 12” LF driver featuring a 2.5” voice coil and a 1.35” HF driver, the system offers a frequency response from 54 Hz to 20 kHz and reaches a maximum SPL of 129 dB. The 90° × 60° dispersion pattern provides consistent coverage for short-to-medium throw applications including live music, speech reinforcement, and DJ playback.
Amplification is based on a Class D + A/B hybrid architecture supplying 600 W RMS (1200 W peak), cooled via silent convection for reliable fanless operation. DSP features 28/56-bit processing with 24-bit / 48 kHz AD/DA conversion and FIR filters for phase-coherent reproduction. User controls include channel levels, main level, preset selection, input sensitivity, and MIX/LINK routing. Connectivity includes CH1 Combo input, CH2 XLR-F + 1/4” jack input, 3.5 mm AUX mini-jack input, and an XLR-M line output for daisy-chain PA configurations. Bluetooth® 5.0 enables stereo wireless streaming for flexible playback scenarios.
The polypropylene cabinet measures 365 × 625 × 345 mm and weighs 17.9 kg, providing rugged portability and compatibility with pole-mount, stacking, and installation points. While optimized for mobile PA usage, B112 can also serve in installation environments requiring elevated SPL and full-range performance.
FEATURES
Active 2-way loudspeaker for small PA and portable sound reinforcement
FIR DSP processing for improved clarity and phase alignment
Extended low-frequency performance suitable for live music and DJ applications
Bluetooth® 5.0 stereo playback for presentations and multimedia
Durable polypropylene enclosure suitable for portable and occasional installation use
SPECIFICATION SHEET
Acoustical Data
Speaker Type
2-way Active bass reflex
Frequency Response [-10 dB]
54 Hz – 20 kHz
Max SPL
129 dB
HF
1.35″ driver
LF
12″ – 2.5″ V.C.
Dispersion
90° H x 60° V
Crossover Frequency
1.8 kHz
Amplifier
Amp Class
D + A/B
RMS Power
600 W
Peak Power
1200 W
Cooling
Convection
DSP
Advanced Functions
FIR filters
DSP
28/56 Bit
AD/DA Converter
24Bit / 48kHz
Controls
Ch. levels
MAIN level
PRESET button
Channel sens. LINK/MIX selection
Connectors
CH1: Combo
CH2: XLR-F + jack 6,35mm (1/4”)
AUX IN: mini-jack 3,5mm
LINE OUT: XLR-M
Bluetooth ®
5.0 stereo
Enclosure
Dimensions
W x H x D
365 x 625 x 345 mm
[14.4” x 24.6” x 13.6”]
Weight
17.9 kg
39.46 lb
Cabinet
Polypropilene

APPLICATION
Montarbo B112 is particularly well suited to small sound reinforcement scenarios where higher output capability and full-range performance are required. It excels in live music venues, small clubs, rehearsal rooms, corporate events, DJ setups, and mobile entertainment environments, where its extended bandwidth and greater headroom offer noticeable benefit over compact loudspeaker formats.
Thanks to its controlled dispersion and onboard DSP, B112 integrates efficiently into portable PA rigs and distributed reinforcement systems. While primarily designed for portable use, it can also be deployed in fixed installations where elevated SPL and full-range coverage are valued, such as multipurpose halls, event spaces, and institutional environments.
ACCESSORIES






