The Nettuno S181 is a compact, high-performance active subwoofer designed to deliver tight, controlled low-frequency reinforcement for professional systems. Powered by a 1000 W RMS amplifier and a robust 18” ferrite driver with a double 4” voice coil, it offers strong output and clean extension from 40 Hz upward. Built for versatility and consistency, the S181 integrates smoothly into both standalone setups and larger Nettuno L28-based systems.
Nettuno S181: scalable, discreet, perfect.
The Nettuno S181 is an active 18” subwoofer designed to provide clean, reliable low-frequency reinforcement in compact professional systems. Its single 18” ferrite driver, built around a dual 4” voice coil, is powered by a 1000 W RMS amplifier module, delivering a solid peak output of 133 dB and a usable bandwidth starting at 35 Hz. Designed to offer controlled, articulate low end, the S181 performs effectively both as a standalone subwoofer and as part of multi-unit configurations.
An integrated DSP section streamlines deployment, offering presets that adapt the S181 to different system layouts and applications. Whether used in small PA setups, mobile rigs, or fixed installations, it provides consistent behavior and predictable tuning. With its straightforward connectivity and compatibility with Nettuno T and L28 systems, the S181 delivers a scalable, uniform low-frequency foundation for a wide range of productions.