Description 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.
