The Montarbo R15S is a powerful 15-inch active subwoofer designed to deliver deep, punchy bass for professional PA systems and live sound applications. Built with a rugged multilayer wooden cabinet and durable polyurea finish, it combines reliability with excellent acoustic performance for demanding environments. Powered by a high-efficiency Class-D amplifier delivering up to 1000W peak power, the R15S produces strong low-frequency output with a maximum SPL of 130 dB. The integrated DSP processing ensures precise control over crossover settings, polarity, and level adjustments, allowing easy integration with full-range speakers. With stereo inputs, crossover outputs, and an M20 pole mount for convenient installation, the Montarbo R15S is an ideal choice for DJs, live events, clubs, and professional audio installations.
Features
- High Output Power: Delivers a peak power of 1000 W, ensuring robust bass performance.
- Wide Frequency Response: Achieves a frequency response from 45 Hz, providing deep and clear low-end reproduction.
- Integrated DSP: Equipped with a 28/56-bit digital signal processor and a 24-bit, 48 kHz AD/DA converter for precise audio processing.
- User-Friendly Controls: Features level control, crossover selection, and polarity inversion to tailor sound output.
- Versatile Connectivity: Includes stereo combo inputs (XLR/Jack) and a link + crossover XLR-M output for flexible integration into various audio setups.
- Robust Construction: Housed in a multilayer wood enclosure with a polyurea finish, ensuring durability and a professional appearance.
- Efficient Cooling: Utilizes a passive radiator system to maintain optimal operating temperatures.
- Pole Mounting Capability: Features an M20 threaded pole mount for easy integration with top speakers.
Specifications
Acoustical Data
| Speaker Type | Active Stereo Subwoofer |
| 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 | 24 bit, 48 kHz |
| Controls | LEVEL, XOVER selection, POLARITY selection |
| Connectors | 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 |















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