Overview:
Compact Passive Low-Frequency Supplementary System
Waterproof Mesh Perforated Steel Grill
Ergonomically Designed Handles
2 x 18" (460mm) Drivers with 4" (100mm) Voice Coils
Recessed Grooves for Stable Horizontal Stacking
2 x Neutrik® NL4 Professional Connectors
35mm Pole Mount Socket
 
 
Application Scenarios:
Fixed Installations: Ideal for venues requiring permanent, high-quality sound systems.
Large, Medium, and Small Mobile Performances: Perfect for various scales of events where portability and flexibility are key.
Indoor Sports Arenas and Multi-Purpose Halls: Suitable for spaces hosting multiple events and activities.
Theaters and Concert Halls: Provides clear and powerful audio for performances and productions.
Adventure Parks: Enhances the audio experience in outdoor entertainment areas.
Bars and Auditoriums: Ideal for social gatherings, live music, and public speaking events.
Weddings and Parties: Ensures high-quality sound for special occasions and celebrations.
Large, Medium, and Small Live Music Clubs: Suitable for intimate to large-scale live performances.
Music Bars and Live Houses: Enhances live music experiences in dedicated venues.
TV Studios: Reliable for precise audio in broadcasting environments.
Performance Spaces and Public Spaces: Versatile for various small venue applications.
Restaurants: Creates an immersive audio atmosphere for dining experiences.
 
The SI218 is a dual 18" passive subwoofer designed for high-quality sound reinforcement in theaters, auditoriums, TV studios, multi-purpose halls, clubs, nightclubs, live houses, stadiums, bars, and theme parks.
 
Key Features:
Dual High-Performance Neodymium 18" Drivers: Utilizes 100mm voice coils and waterproof-coated paper cones, equipped with long-excursion drivers to minimize air turbulence at high output levels.
Wide Frequency Response: Extends down to 35Hz (-10dB), delivering high-efficiency, wide dynamic range output.
Versatile Usage: Can be used individually or horizontally stacked, compatible with CA or SI series full-range speakers. Should be operated with SICA dedicated electronic controllers for deep and powerful low-frequency output.
Robust Construction: Made from 18mm Finnish birch plywood and coated with durable waterproof polyurea paint, providing comprehensive protection in harsh environments.