Nettuno L28 | Line Array | NEW PRODUCT

• 1000 W RMS Class D amplifier  
• 135.5 dB max SPL  
• 2 × 8” LF transducers  
• 1.4” HF compression driver with 3” voice coil  
• 100° horizontal coverage  
• Plywood enclosure with polyurea coating  
• Weight: 23.4 kg 

The Nettuno L28 is equipped with two 8” ferrite woofers and a 1.4” neodymium compression driver with a 3” voice coil, powered by a 1000 W RMS amplifier module designed byMontarbo, featuring onboard DSP and FIR filtering. Its symmetrical waveguide and phase plug design ensure high efficiency, achievingan optimalbalance between compact formfactor, refined industrial design, and impressive acoustic performance.

Setup is quick and intuitive: up to 20 modules can be configured using just two rotary encoders, with array coupling and HFC (High Frequency Compensation) presets easily accessible. With a 100° horizontal dispersion, the L28 ensures smooth and consistent coverage in medium to large, acoustically challenging venues. No external processing isrequired: the integrated HF compensation provides precise controlover throwfor each module, enabling straightforward system optimization.

The modular design and wide range of accessories make theMontarboL28 suitable for both small PA systems and medium-scale live events with audiences of up to 5,000 people. Its flexible configuration options allow it to adapt to a variety of environments, including outdoor festivals, public events, theatres, concert halls, and houses of worship. Whether deployed as a ground-stacked array or flown within a larger system, the L28 maintains consistent performance and coverage, making it a reliable choice for rental companies, touring productions, and fixed installations.

1. What is the Nettuno L28 system? 

The Nettuno L28 is a compact, high-performance line array module designed by Montarbo for professional sound reinforcement. It combines advanced acoustic design, onboard processing, and ease of deployment, making it ideal for medium to large-scale live events. 

2. What are the key components of the L28? 

The L28 features: 

• Two 8” ferrite woofers for solid low-mid performance 
• A 1.4” neodymium compression driver with a 3” voice coil for detailed high frequencies 
• A 1000 W RMS amplifier module 
• Integrated DSP with FIR filtering for precise signal control 

3. What makes the acoustic design of the L28 unique? 

The L28 uses a symmetrical waveguide and optimized phase plug design. This ensures: 

• High efficiency 
• Balanced sound dispersion 
• Consistent tonal response across the listening area 

4. How easy is it to set up the L28 system? 

Setup is designed to be fast and intuitive. Users can: 

• Configure up to 20 modules 
• Use just two rotary encoders for system control 
• Quickly access array coupling and HFC (High Frequency Compensation) presets 

This minimizes setup time and reduces the need for complex external tools. 

5. Does the L28 require external processing? 

No. The L28 includes onboard DSP and FIR filtering, eliminating the need for external processors. Its integrated HF compensation allows precise control of sound throw directly from the module. 

6. What is HFC (High Frequency Compensation)? 

HFC is a built-in feature that adjusts high-frequency response depending on array configuration and throw distance. It ensures consistent clarity and tonal balance across the audience area. 

7. What coverage can the L28 provide? 

With a 100° horizontal dispersion, the L28 delivers: 

• Smooth and even coverage 
• Reliable performance in acoustically challenging environments 
• Consistent sound quality across medium to large venues 

8. How do Nettuno S181 and S182 subwoofers integrate with the L28? 

When paired with Nettuno S181 or S182 subwoofers, the L28 system becomes a full-range solution. The subwoofers add: 

• Deep, focused low-frequency energy 
• Enhanced impact for music and live performances 
• Improved system balance 

9. How scalable is the L28 system? 

The system is highly scalable. By adding more L28 modules and subwoofers, it can be adapted for different venue sizes while maintaining consistent performance. 

10. What audience size can the L28 system handle? 

When combined with S181 or S182 subwoofers, the L28 system is capable of delivering consistent, high-quality sound for audiences of up to 5,000 people. 

11. What types of events is this system best suited for? 

The L28 system is ideal for: 

• Live concerts 
• Festivals 
• Corporate events 
• Theaters and touring productions 

12. What are the main advantages of the L28 system? 

• Compact and elegant design 
• High power and efficiency 
• Integrated DSP (no external processing needed) 
• Fast and intuitive setup 
• Scalable for different audience sizes 
• Consistent coverage and sound quality