R115 is a professional 2-way active loudspeaker engineered for high-output portable PA, touring, and medium-sized live events. Its bass-reflex architecture combines a 15” low-frequency driver with 3” voice coil and a 1.75” HF compression driver, delivering extended low-end authority, clear midrange, and detailed high frequencies. The system reaches a maximum sound pressure level of 132 dB, ensuring intelligibility and dynamic impact across demanding performance environments.

The loudspeaker’s 90° × 40° coverage pattern provides wide horizontal dispersion with controlled vertical directivity, enabling precise audience coverage and minimizing unwanted reflections. This makes R115 ideal for mobile PA systems, front-of-house setups, stage monitoring, touring, and rehearsal spaces.

Powered by a Class D amplifier platform rated at 600 W RMS / 1200 W peak, R115 delivers responsive transient performance with ample headroom. Its passive radiator design ensures efficient low-frequency extension without the need for active cooling. Onboard DSP processing—including FIR filters, 24-bit / 48 kHz conversion, and 28/56-bit internal processing—optimizes crossover behavior, phase alignment, and overall tonal balance.

Front-panel controls offer channel-level adjustment, preset selection, input sensitivity, and LINK/MIX routing, while comprehensive connectivity—including Combo, XLR, and 1/4” inputs with XLR line output—enables flexible multi-speaker deployment and scalable system expansion.

Constructed from multilayer wood with a protective polyurea coating, the cabinet is engineered for touring durability. Measuring 427 × 705 × 428 mm and weighing 25.9 kg, R115 combines high output and extended bandwidth with reliability and practicality for professional portable and live performance use.

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 1.35” 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 127 dB, ensuring intelligibility for speech and music in intimate to medium-sized venues.

The loudspeaker’s 90° × 70° 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.

R110 is a professional 2-way active loudspeaker designed for portable PA systems, rental fleets and fixed installations where clarity, output and reliability are required. Its bass-reflex architecture pairs a 10” LF driver with 2” voice coil and a 1.35” HF compression driver, offering enhanced low-end authority and increased headroom compared to more compact formats. The system reaches a maximum sound pressure level of 127 dB, maintaining high intelligibility for speech and music within small to medium audience areas.

The loudspeaker’s 90° × 70° coverage pattern provides wide, uniform horizontal dispersion with controlled vertical directivity, helping to simplify placement and reduce troublesome reflections in acoustically challenging environments. This makes R110 suitable for applications including corporate A/V, mobile performance, DJ monitoring, rehearsal rooms, worship spaces and distributed sound reinforcement in commercial or educational facilities.

Powered by a hybrid Class D + A/B amplifier platform rated at 200 W RMS / 400 W peak, R110 delivers responsive transient performance with ample dynamic headroom for program material. Fan-assisted cooling ensures thermal stability during extended operation, while the onboard DSP utilizes FIR filtering, 24-bit / 48 kHz conversion and 28/56-bit processing to optimize crossover behavior, phase response and overall system linearity.

Front-panel controls offer access to channel levels, preset selection and input sensitivity adjustment, while flexible connectivity—including Combo, XLR and 1/4” inputs with LINK/MIX routing and XLR line output—facilitates straightforward expansion, signal distribution and multi-speaker deployment for scalable configurations.

Built from multilayer wood and finished with a durable polyurea coating, the enclosure is engineered for long-term reliability in portable and installed use. Measuring 304 × 505 × 305 mm and weighing 12.7 kg, R110 provides higher output and fuller bandwidth performance while remaining manageable for day-to-day transport and installation, offering professionals a robust and versatile loudspeaker that delivers the recognizable Montarbo sonic character with added impact.

R108 is a compact professional 2-way active loudspeaker designed for portable PA rental inventories and fixed installations where clarity coverage and reliability are essential. Its bass-reflex architecture combines an 8” LF driver with 2” voice coil with a 1.35” HF compression driver delivering balanced frequency detail. The system achieves a maximum sound pressure level of 125 dB maintaining consistent intelligibility across small to medium audience areas.

The loudspeaker’s 90° × 70° coverage pattern provides wide uniform horizontal dispersion with controlled vertical directivity simplifying placement reducing unwanted room interactions in acoustically challenging environments. This makes R108 suitable for diverse applications including corporate A/V mobile performance DJ monitoring educational spaces worship facilities distributed sound systems.

Driven by a hybrid Class D + A/B amplifier platform rated at 200 W RMS / 400 W peak R108 offers responsive transient performance ample headroom for music speech reinforcement. A dedicated cooling system with active fan management ensures thermal stability during continuous operation while the onboard DSP employs FIR filters 24-bit / 48 kHz conversion 28/56-bit internal processing to refine crossover behavior phase alignment system linearity.

Front-panel controls provide access to channel levels preset selection input sensitivity while comprehensive connectivity including Combo XLR 1/4” inputs with LINK/MIX routing XLR line out facilitates flexible system expansion parallel feeds simple multi-speaker setups for scalable configurations.

Constructed from multilayer wood protected by a durable polyurea finish the enclosure is engineered for long-term robustness in portable installed use. Measuring 264 × 440 × 260 mm weighing 10.9 kg R108 offers a compact footprint without compromising acoustic performance making it a dependable choice for professionals seeking a versatile high-fidelity loudspeaker solution embodying the unmistakable Montarbo sonic character.

R15S is a professional active stereo subwoofer engineered to complement Montarbo B and R series full-range speakers. Its 15” low-frequency driver with 4” voice coil delivers deep, precise bass with a frequency response down to 45 Hz, providing the low-end foundation needed for music, live performance, and portable PA systems. The system reaches a maximum SPL of 130 dB, ensuring impact and clarity in small to medium venues.

Powered by a Class D amplifier rated at 500 W RMS / 1000 W peak, R15S offers responsive low-frequency output with ample headroom. Its passive radiator design enhances low-end extension while eliminating the need for active cooling, providing reliable performance during extended operation.

Onboard DSP—including 28/56-bit processing and 24-bit / 48 kHz AD/DA conversion—offers precise control over level, crossover frequency, and polarity, allowing seamless integration with main PA speakers. Connectivity includes dual Combo inputs for stereo operation and XLR line output for LINK + XOVER configuration, enabling flexible system expansion and multi-subwoofer setups.

Built from multilayer wood and finished with protective polyurea, the enclosure is engineered for durability during transport and repeated use. Measuring 430 × 580 × 590 mm and weighing 31.9 kg, R15S delivers professional-grade low-frequency reinforcement while remaining practical for portable applications.

R18S is a professional active stereo subwoofer engineered to enhance Montarbo B and R series full-range speakers. Its 18” low-frequency driver with 4” voice coil delivers deep, precise bass down to 41 Hz, providing the low-end foundation required for music, live performance, and portable PA systems. The system reaches a maximum SPL of 131.5 dB, ensuring impact and clarity across small to medium venues.

Powered by a Class D amplifier platform rated at 500 W RMS / 1000 W peak, R18S offers responsive low-frequency output with ample headroom. Its passive radiator design ensures extended low-end performance while eliminating the need for active cooling, making it highly reliable for repeated transport and prolonged use.

Onboard DSP—including 28/56-bit processing and 24-bit / 48 kHz AD/DA conversion—provides precise control over level, crossover frequency, and polarity, enabling smooth integration with main PA speakers. Connectivity includes dual Combo inputs for stereo operation and XLR line output for LINK + XOVER configuration, facilitating flexible system expansion and multi-subwoofer setups.

Constructed from multilayer wood with protective polyurea finish, the cabinet is designed for durability and ease of transport. Measuring 510 × 650 × 690 mm and weighing 38 kg, R18S delivers professional-grade low-frequency reinforcement while remaining practical for portable and touring applications.