MTSub 218i

AUDIOFOCUS install High performance 2 x 18″ subwoofer

TransducersLF : 2 x 18″
SPL peak / 1m (measured)140 dB
Weight89,5kg / 197.31lbs
RiggingPole mount
Share this product


MTSub 218i is a powerful, state-of-the-art passive subwoofer, designed to complement our FR-X and ARES series in theatres, performance venues, houses of worship, and other installations requiring excellent audio quality at a real-world price point.

The MTSub 218i subwoofer houses two long-excursion 18″ neodymium drivers in a bass-reflex and T-lined design and delivers outstanding SPL in stand-alone or stacked configurations. Cardio and end fire on every version.

We recommend the AUDIOFOCUS amplifier range as the perfect companion to MTSub 218i. Powersoft presets are also available.

MTSub 218i is built with pride in Belgium and coated in tough, weather-resistant polyurea to safeguard your investment. The cabinet front is protected by a rigid metal grill, backed by acoustically transparent foam.


  • Cardioid / end fire setups
  • Compact format
  • Optimized for installation
  • 2.400 Wrms power handling
  • 2 x 18″
  • Pole mount socket
  • Passive

Technical specifications

DescriptionHigh-power subwoofer
Transducers LF: 2 x 18″
Frequency range (-6dB)38Hz-110 Hz
SPL peak (1)140 dB
ProcessingDedicated AUDIOFOCUS and Armonia/Powersoft omni and cardio presets
Connectors2 × 4-point speakON
Nominal Impedance4ohm
Watt RMS/peak2400/4800W
Dimensions (H x W x D)1200 x 605 x 800 mm
47.24 x 23.81 x 31.49 inches
Weight89.5kg / 197.31lbs
FinishHighly resistant polyurea coating

CabinetHigh grade birch plywood

(1) Peak level measured at 1 m under free field conditions using pink noise with crest factor 5

Gll files for Ease and Easefocus

MTSub 218

Gll • 1.69 Mo • 06/01/2022

MTSub 218 Stack

Gll • 1.88 Mo • 06/01/2022