Nettuno 20 is a high-performance PA system designed to deliver powerful, focused sound with exceptional clarity and headroom. Combining a high-output two-way top with a dual 15” active subwoofer, it delivers authoritative low frequencies, precise mids, and detailed highs with controlled, high-intelligibility coverage. Powered by a 1600 W RMS amplifier with advanced 32-bit DSP and RDNet connectivity, Nettuno 20 offers reliability, scalability, and consistent performance for live events and professional installations.
OVERVIEW
Nettuno 20: getting serious.
Nettuno 20 is a high-output, professional PA system engineered for demanding live sound, touring and fixed installation applications where power, control and precision are essential. The system combines a high-performance two-way top, featuring four 8” low-frequency drivers and a 1.4” exit compression driver with a 3” voice coil, with a powerful active bass-reflex subwoofer loaded with dual 15” woofers. This configuration delivers extended frequency response, ensuring excellent intelligibility and impact even at high sound pressure levels, with a maximum SPL of 137 dB and controlled 90° x 40° dispersion.
Driven by a 1600 W RMS amplifier platform with advanced 32-bit DSP, Nettuno 20 provides precise system management, high headroom and reliable protection through dual active peak, RMS and thermal limiters. The integrated DSP offers optimized presets and seamless system integration via RDNet connectivity, while intuitive controls and visual system status indicators allow fast and accurate setup. Built into rugged plywood enclosures with professional mounting and suspension options, Nettuno 20 is designed for scalable configurations and long-term reliability, delivering the unmistakable Montarbo sound in a powerful PA solution ready for high-demand stages and installations.
FEATURES
High-output system for touring & installs
Dual 15” subs + four 8” tops
1600 W RMS + 32-bit DSP control
RDNet connectivity & fast presets
Touring-grade build & scalable design
SPECIFICATION SHEET
Acoustical Data
Speaker Type
Two-way passive speaker active bass reflex subwoofer
Frequency Response [-6 dB]
74 Hz – 20 kHz [TOP]
38.5 Hz – Xover [SUB]
Max SPL
137dB
HF
1.4” exit – 3” V.C.
LF Top
4x 8” – 2” V.C.
LF Subwoofer
2×15” – 3” V.C.
Dispersion
90° H x 40° V
Crossover Frequency
1200 Hz [TOP]
90/100 Hz [SUB]
Amplifier
RMS Power
1600 W
Peak Power
3200 W
Cooling
Passive convection
DSP
DSP
32 Bit
AD/DA Converter
24Bit / 48kHz
Limiter
Dual Active Peak, RMS, Thermal
Controls
Rotary encoder (subwoofer level)
4 System LED
3 RDNet LED
Presets: Flat – user/service
Connectors
XLR (input)
XLR Link OUT, speakON®
(Output to top)
RDNet: Data In / Data Out
(etherCON® connectors)
Enclosure
Suspension points
2x M10 [TOP]
Pole Mounting
36 mm [TOP]
Handles
Built in (1 per side) [TOP]
Built in (2 per side) [SUB]
Dimensions
W x H x D
260x1150x360 mm [TOP]
520x850x650 mm [SUB]
Weight
28.5 Kg [TOP]
52.64 Kg [SUB]
Cabinet
Plywood with black coating

APPLICATION
Nettuno 20 is a versatile compact PA system designed for a wide range of professional sound applications. Its balanced output, wide dispersion and controlled low end make it ideal for live music, DJs, corporate events and multimedia productions, providing clear and articulate sound for both speech and music in small to medium spaces.
With its modular design and flexible system topology, Montarbo Nettuno 20 adapts easily to different setups, from compact front-of-house configurations to more distributed systems for extended coverage. It also performs reliably in fixed installations such as cafés, bars, retail spaces, houses of worship and multipurpose venues, offering fast deployment, efficient footprint and consistent sound quality in daily operation.





