
Montarbo Nettuno L28 is a compact and highly adaptable active line array engineered to integrate seamlessly into a wide range of professional configurations. Delivering robust output, exceptional flexibility, and uniform coverage, it represents an optimal solution for touring and permanent applications. Purpose-built for demanding applications, the Nettuno L28 ensures consistent reliability and a sonic character that stands out in any environment.
OVERVIEW
Montarbo L28: adaptive nature in a lightweight enclosure.
Nettuno L28 incorporates two 8-inch ferrite woofers and a 1.4-inch neodymium compression driver with a 3-inch voice coil, powered by a Montarbo-engineered 1000 W RMS amplifier featuring integrated DSP and FIR filtering. Its symmetrical waveguide and phase-plug architecture deliver exceptional efficiency, achieving an optimal balance of compact form factor, refined industrial design, and impressive acoustic output.
Deployment is streamlined and intuitive: up to 20 cabinets can be configured using only two rotary encoders, with coupling and HFC presets readily accessible. With a 100° horizontal dispersion, the Nettuno L28 ensures smooth, uniform coverage across wide or acoustically challenging medium-size environments. External processing is unnecessary—the built-in high-frequency compensation provides precise control over each cabinet’s throw, enabling effortless system optimization.
When paired with the Nettuno S181 or S182 subwoofers, the L28 forms a coherent and scalable system capable of delivering focused energy and consistent performance for audiences of up to 5,000 people.
FEATURES
1000W RMS class D amp
135,5 dB SPL
2×8” LF transducers
1.4” HF driver with 3” V.C.
100° horizontal dispersion
Plywood enclosure with polyurea finish
23,4 Kg
TECHNICAL SHEET
Acoustical Data
Speaker Type
Two-way, Active Line Array Element
Frequency Response [-6 dB]
75Hz – 15.6 KHz
Max SPL
135.5dB
Dispersion
H 100°
HF
1.4″ – 3″ V.C.
LF
8″ – 2″ V.C.
Crossover Frequency
940 Hz
Amplifier
RMS Power
1000 W
Cooling
Conventional
Processing
DSP
FIR – Linear phase filters
AD/DA Converter
24Bit / 48kHz
Limiter
Dual stage signal limiter
RMS
Thermal
Controls
Sensitivity Knob
Speaker Coupling Rotary
HF Compensation Rotary
Limiter/Signal/Status/ON Leds
USB C-Type Port
Input/Output Section
Signal
1x XLR IN
1x XLR OUT
Power
PowerCON IN/OUT
Enclosure
Suspension points
Integrated rigging system with locking pins
Pole Mounting
No
Handles
2 x Built-in on back
2 x Side
Dimensions
W x H x D
600 x 260 x 390 mm
[23,62” x 10,24” x 15,35”]
Weight
23.4 kg
[51.6 lbs]
Cabinet Material
Polyurea

APPLICATION
The modular design and wide range of accessories make the Montarbo L28 ideal for small PA setups as well as medium-size concerts reaching audiences of up to 5,000 people. Its flexible configuration options allow the system to adapt to a variety of environments, from outdoor festivals and public gatherings to theatres, concert halls, and houses of worship. Whether deployed in ground-stacked arrangements or flown as part of a larger system, the L28 maintains consistent performance and coverage, making it a dependable choice for rental companies, touring productions, and permanent installations alike.
ACCESSORIES

DRK-28

DSA-L28










