The pinnacle of
low-frequency innovation

Pure and powerful low-end has been a staple of PK Sound's acoustic signature since the beginning. T218 represents the pinnacle of our innovation in LF reproduction thus far, with performance and output that rivals any subwoofer on the market today.



145.1 dB
25 Hz-100 Hz
T218 is the flagship subwoofer in the Trinity series, the industry’s first series of robotically controlled line array elements. This high-output, low-profile enclosure offers outstanding low-frequency performance with an operating range of 25 Hz-100 Hz.

T218 features dual front-loaded, long-excursion 18” transducers in a bass reflex design for clean and punchy output. A large, unrestricted vent produces high SPL performance with minimal port distortion. A single field-replaceable module located on the rear of the cabinet contains the 4,000 W Class D amplifier, control electronics, and power supply. Advanced onboard DSP simplifies set-up and calibration and maximizes performance.

Network-based Auto-Array within PK .dynamics software allows each T218 to recognize its position within the system for improved accuracy and simplifies advanced deployments like cardioid configurations and arc delays.

Integrated rigging hardware allows for up to 16 T218 modules to be flown in a column, or securely ground-stacked. A low-profile design allows T218 to slide under any stage and efficiently pack for global transport, ideal for both mobile and performance installation applications.

25 Hz-100 Hz

2 x 18" Bass Reflex

Class D
4,000 W
Auto-Switching 100-240 V, 50-60 Hz
1,800 W (at max power)

Multipin Amphenol – IP65
powerCON TRUE1 – IP65

104 kg/229 lb.
1395 x 518 x 780
54.9 x 20.4 x 30.7
16 Modules
IP65 Connectors
Void Free, High Grade Baltic Birch
6061-T6 Aluminum
EXL Polyurea
Powder Coated Aluminum
* Maximum SPL with Pink Noise Crest Factor 4 at 1 m (with limiters & DSP active)






Alliance Hub

Alliance Hub

Release DateCategoryFile TypeSize kBLanguage
T218 (Letter)Spec Sheetapplication/pdf487.97ENGDownload 'T218-Spec Sheet-Letter.pdf'
T218 (A4)Spec Sheetapplication/pdf487.86ENGDownload 'T218-Spec Sheet-A4.pdf'
T218User Manualapplication/pdf2,158.51ENGDownload 'T218-User-Manual-v1.0.pdf'
T218 (A4)EU Declaration of Conformityapplication/pdf107.60ENGDownload 'T218-CE Declaration-A4.pdf'
T218 (Letter)EU Declaration of Conformityapplication/pdf107.24ENGDownload 'T218-CE Declaration-Letter.pdf'
Trinity Range Power ConsumptionTechnical Specsapplication/pdf225.10ENGDownload 'Trinity Range Power Consumption.pdf'

t218 suspension frame


t218 caster board


t218 cover top wrap


Discover T218

Engineered for the future

T218 is loaded with the most advanced system components ever offered in a subwoofer.

Integrated power electronics and DSP allow users to dynamically control and tune low frequency response while auto-identification via .dynamics means complex solutions like cardioid configurations and arc delays are easily realized with unmatched power and headroom to spare.

PK Sound

235075 Ryan Rd.
Rocky View, AB T1X 0K3

PK Europe

Kasteelstraat 223
9255 Buggenhout