R15S is an active stereo subwoofer designed to complement Montarbo B and R series loudspeakers, delivering deep, controlled low-end reinforcement for portable and installed systems. Its 15” driver provides powerful bass, while onboard DSP allows level, crossover, and polarity adjustment for smooth integration. With versatile inputs, LINK/XOVER routing, and a robust polyurea-coated cabinet, R15S ensures reliable, portable performance for small-to-medium venues and live applications.
OVERVIEW
Stereo Bass, Maximum Impact
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.
FEATURES
Active stereo subwoofer designed for B and R series loudspeakers
15” LF driver delivering deep, controlled low-end impact
Integrated DSP with level, crossover, and polarity control for seamless integration
Flexible connectivity with Combo inputs and XLR LINK + XOVER output
Durable multilayer wooden cabinet with polyurea finish for reliable portable use
TECHNICAL SHEET
Dati Acustici
Frequency response [-10 dB]
45 Hz to cut frequency
Max SPL
130 dB
LF
15″ – 4″ VC
Amplifier
Amp Class
D
RMS Power
500 W
Peak Power
1000 W
Cooling
Passive radiator
DSP
DSP
28/56 Bit
AD/DA Converter
24Bit / 48kHz
Controls
LEVEL
XOVER selection
POLARITY selection
Connettors
CH1/CH2: Combo
LINE OUT: XRL-M (LINK+XOVER)
Enclosure
Dimensions
W x H x D
430 x 580 x 590 mm
[16.9” x 22.8” x 23.2”]
Weight
31.9 kg
[70.32 lb]
Cabinet
Multilayer wood with polyurea finish
APPLICATION
R15S is ideal for enhancing Montarbo B and R series loudspeakers with powerful, controlled low frequencies in portable and installed sound systems. Its deep bass response and high output make it suitable for music playback, live performance, DJ setups, and small to medium venue applications.
Thanks to its stereo operation and flexible DSP controls, R15S can be integrated into compact ground-stacked PA systems, multi-speaker arrays, or mobile setups with ease. Built for durability and ease of deployment, it provides reliable, professional-grade low-frequency reinforcement for touring, rental, and everyday portable sound reinforcement needs.
ACCESSORIES
