Montarbo Nettuno-S181
Compact, high-performance 18" active subwoofer
MSRP.
£1598.67 + VAT
Trade price.
Key Features.
Subwoofer Type – Active 18" bass reflex subwoofer
Frequency Response (-6 dB) – 40 Hz – 100 Hz
Maximum SPL – 134 dB
Low-Frequency Driver – 18" ferrite woofer with dual 4" voice coil
Amplifier – 1000 W RMS Class D
Cooling System – Passive convection cooling
Digital Signal Processing – 24-bit DSP with FIR linear-phase filters
AD/DA Conversion – 24-bit / 48 kHz
Description.
Add serious low-frequency performance to your sound system with the Montarbo Nettuno S181, an 18-inch active subwoofer designed for professional PA, live music, DJ setups and event production. Its single 18-inch ferrite driver provides deep, controlled bass that gives music greater weight and impact, making it an ideal partner for the Nettuno L28 line array or compatible full-range loudspeakers.
Powered by a 1,000W RMS Class D amplifier, the S181 reaches a maximum SPL of 134dB, with a frequency response extending down to 40Hz at -6dB. This combination provides substantial low-frequency reinforcement while maintaining the definition needed for live instruments, electronic music and demanding sound reinforcement applications.
Integrated DSP makes it easier to tailor the subwoofer to your system, with eight selectable presets, delay adjustment and polarity control. Dedicated cardioid presets allow multiple units to be configured for more controlled bass coverage, helping reduce unwanted low-frequency energy behind the system. Balanced XLR inputs and outputs provide flexible signal routing, while the onboard processing helps simplify setup for both mobile productions and permanent installations.
Built for the demands of professional use, the Nettuno S181 features a sturdy plywood enclosure with a durable polyurea finish. Its M20 pole-mount fitting allows a compatible full-range speaker to be mounted above the subwoofer, while handles on both sides help with handling and positioning. For sound engineers and rental companies looking for a high-output 18-inch active subwoofer with advanced DSP and cardioid processing, the Montarbo Nettuno S181 offers a powerful and adaptable foundation for professional sound systems.
For us, the Nettuno-S181 is all about adding serious low-end performance without sacrificing control. Its 18-inch driver and 1000W RMS amplifier provide a powerful foundation for a professional PA system, but it's the built-in DSP that makes it particularly appealing. With dedicated presets for cardioid configurations, delay and system tuning, it's easy to adapt the subwoofer to different setups and environments. We also like its compatibility with the Nettuno L28, making it a great building block for anyone looking to create a scalable professional sound system.