R112 is a compact 2-way active loudspeaker designed for portable PA setups, mobile performers, and small events. Its 12” low-frequency and 1.75” high-frequency drivers deliver balanced sound with strong lows and clear mids. Powered by an efficient amplifier with onboard DSP, the R112 ensures controlled, consistent coverage and smooth frequency response. With simple controls and versatile inputs, it offers fast, reliable setup for solo performers, mobile DJs, small bands, and educational events.
OVERVIEW
Montarbo R112. Versatile Performance, Portable Power
R112 is a compact 2-way active loudspeaker designed for portable PA systems, mobile performers, and small-scale event applications where clarity, coverage, and reliability are essential. Its bass-reflex architecture combines a 12” low-frequency driver with 2” voice coil and a 1.75” high-frequency compression driver, delivering a balanced sound with strong low-end presence, natural midrange, and detailed high frequencies. The system reaches a maximum sound pressure level of 131 dB, ensuring intelligibility for speech and music in intimate to medium-sized venues.
The loudspeaker’s 90° × 40° coverage pattern provides wide, uniform horizontal dispersion with controlled vertical directivity, simplifying placement and reducing unwanted reflections in challenging acoustic spaces. This makes R112 suitable for applications such as mobile DJ setups, solo performance, small bands, rehearsal rooms, classrooms, and café or bar installations.
Powered by an amplifier platform optimized for small PA systems, R112 delivers responsive transient performance with controlled headroom, while onboard DSP processing, including FIR filters, 24-bit / 48 kHz conversion, and 28/56-bit internal processing, ensures smooth frequency response, refined crossover behavior and consistent tonal balance.
Front-panel controls provide access to channel levels, preset selection, and input sensitivity, while versatile connectivity, including Combo, XLR, and 1/4” inputs with LINK/MIX routing and XLR line output, facilitates easy multi-speaker setups and scalable system expansion for portable applications.
Constructed from multilayer wood with a protective polyurea finish, the enclosure is engineered for durability and portability. Lightweight and compact, R112 combines Montarbo’s professional sound quality with practical transportability, making it a dependable choice for small PA systems and mobile performance environments.
FEATURES
Compact active loudspeaker designed for small PA and mobile performance
Balanced sound with clear vocals, defined mids, and strong low-end presence
Integrated DSP processing for smooth, controlled, and cohesive output
Flexible inputs and LINK/MIX routing for easy setup and expansion
Lightweight, durable wooden cabinet built for reliable transport and everyday use
TECHNICAL SHEET
Acustical Data
Speaker Type
2-way active point source
Frequency response [-6 dB]
56 Hz – 19 kHz
Max SPL
131 dB
Dispersion
90° H x 40° V
HF
1.75″ driver
LF
12″ – 2″ V.C.
Crossover frequency
1500 Hz
Amplifier
RMS Power
600 W
Cooling
Passive convection
Processing
DSP
FIR – Linear Phase Filter
4 presets
AD/DA Converter
24Bit / 48kHz
Limiter
Dual stage signal limiter
Thermal
Controls
CH1 Level knob
CH2 Level knob
CH1 Line/Mic switch
Link/Mix switch
Main Level knob
Preset button
Input/Output Section
Signal
2x XLR IN
1x XLR OUT
Power
VDE
Service
USB-C Type port
Enclosure
Suspension points
2x each side
3x top
3x bottom
2x rear
Pole Mounting
36 mm
Handles
1x top
1x each side
Dimensioni
W x H x D
359 x 610 x 350 mm
[14.2” x 24” x 13.8”]
Weight
21 kg
[46.3 lb]
Cabinet Material
Plywood enclosure with polyurea finish

APPLICATION
R112 is ideal for portable sound reinforcement, solo performers, mobile DJs, small bands, and event presenters. Its balanced frequency response, clear speech reproduction, and solid low-end make it perfect for cafés, bars, small stages, rehearsal spaces, and classrooms.
Thanks to its compact size and flexible connectivity, R112 adapts effortlessly to different setups: from stand-mounted solo PA systems to small multi-speaker arrays for wider coverage. Designed for ease of transport and fast deployment, it provides reliable, professional-grade sound where space is limited and portability is key, making it a practical solution for small-scale events and mobile performance needs.
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