QSC PL-SUB18 Passive 18-inch installation subwoofer

Q-SYS PL-SUB18 | 18-Inch Passive Installation Subwoofer

Powerful, Configurable Low-Frequency Support for Q-SYS Venues

The Q-SYS PL-SUB18 is an 18-inch passive installation subwoofer purpose-built for Q-SYS networked audio environments. Featuring a weatherized wooden enclosure in a compact bass-reflex form factor, it delivers exceptional low-frequency performance for a wide range of commercial applications—from entertainment venues and sports arenas to higher education lecture halls and corporate auditoriums.

When deployed in multiples, the PL-SUB18 can operate in omnidirectional or cardioid radiation modes, configurable directly within Q-SYS Designer Software, allowing precise LF coverage control. With integrated flyware compatibility, it can be flown with the PL-LA12 line array using the PL-LA12-AF array frame (sold separately).

Key Features and Benefits

• 18-Inch LF Transducer
  High-performance low-frequency driver in a tuned bass-reflex enclosure for impactful, extended bass response.
• Weatherized Construction
  Built to IP54 standards, the durable wooden enclosure supports use in indoor and protected outdoor installations.
• Configurable Radiation Patterns
  Supports omnidirectional or cardioid output modes (requires 2+ units) via Q-SYS Designer Software—ideal for controlling bass dispersion in sensitive acoustic spaces.
• Q-SYS Native Integration
  Fully compatible with Q-SYS Reflect Enterprise Manager and Q-SYS control interfaces, allowing on-site or remote monitoring and diagnostics.
• Flyable with Line Array
  Designed to be flown with PL-LA12 line arrays using the PL-LA12-AF array frame, supporting consistent LF distribution in flown systems.
• Part of the Q-SYS Ecosystem
  Seamlessly integrates into the Q-SYS platform, offering a unified approach to audio, video, and control throughout the venue.

Ideal Applications

• Indoor & Covered Outdoor Entertainment Venues
• Corporate Presentation Spaces & Auditoriums
• Higher Education Lecture Halls
• Performing Arts Centers
• House of Worship Installations
• Small Stadiums and Sporting Facilities
• Multipurpose AV Installations

Competitive Advantages

• Integrated System Design: Combines audio control, configuration, and performance management within a single Q-SYS software ecosystem.
• Precision LF Coverage: Cardioid option minimizes unwanted stage and rear-wall bass reflections.
• Scalable Deployment: Flexible design supports single-unit installs or multi-sub array configurations.
• Remote System Management: Monitor and manage system health from anywhere via Q-SYS Reflect Enterprise Manager.
• Installation-Ready: Weatherized, flyable, and compact—ideal for architects and AV integrators working with tight specs.

Comparison Table