Audiofocus B 18i

Flyable 18″ installation LF extension for ARES 8 line arrays

Product Documentation

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LF : 1 x 18″

SPL peak 

132 dB


53,8 kg


From 0 to 5°


B 18i is a compact, powerful LF extension for installed ARES 8i line arrays, enhancing the system’s low end response and directivity.  ARES 8i and B 18i unite with S / MTSub Series subs to form a consistent, high performance, 4-way install line array system.  B 18i is fully compatible with the ARES 8i rigging system and can be flown alongside, on top of or behind ARES 8i elements, or deployed in ground stack / standalone configurations.

The B 18i houses a long excursion 18″ neodymium driver and combines front diffusion, bass reflex, and transmission line design for ultimate efficiency and performance.

B 18i 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.

We recommend AUDIOFOCUS or Powersoft amplifiers for use with B 18i.


  • LF extension for ARES 8i
  • Flown or ground stacked
  • Passive
  • Integrated rigging