The T218 is the flagship subwoofer of the Trinity series, the industry’s first robotically controlled line array system. This high-output, low-profile enclosure delivers exceptional low-frequency performance with an operating range of 25 Hz to 100 Hz.

Advanced onboard DSP

Equipped with dual front-loaded, long-excursion 18” transducers in a bass reflex design, the T218 delivers clean, punchy low-frequency output. Its large, unrestricted vent minimizes port distortion while enabling high SPL performance. The rear-mounted, field-replaceable module integrates a powerful 4,000 W Class D amplifier, control electronics, and power supply into a single, serviceable unit. Advanced onboard DSP streamlines setup, calibration, and system optimization.

Auto-Array functionality

Through PK Sound’s .dynamics software, network-based Auto-Array functionality allows the T218 to self-recognize its position in the system, enhancing precision and simplifying advanced configurations such as cardioid arrays and arc delays.

Designed for versatility, the T218 includes integrated rigging hardware, enabling up to 16 units to be flown in a column or securely ground-stacked. Its low-profile design fits under stages and optimizes packing for efficient global transport, making it a top-tier choice for both mobile and permanent performance installations.