The Clair Brothers CS218-M is the latest dual
18” sub-low frequency loudspeaker designed
to provide maximum sub bass reinforcement
and low frequency augmentation in mobile
applications.
The CS218-M’s high-output makes it an ideal
companion for a variety of Clair Brothers’ full
range loudspeakers such as i212, CAT214, R3T
and R4.
The two complementary 18“ transducers and
ports minimize thermal power compression and
airflow turbulence for unmatched performance.
The 18” transducers have weather-resistant
cones with exceptional linear excursion.
The result is a high power handling, highperformance subwoofer that provides tightly
controlled low frequency extension.

As with all Clair Brothers products, the CS218-M
is constructed of the finest Baltic birch plywood
with a rugged epoxy mastic finish to withstand
the most demanding conditions.
The speaker grille is constructed of a durable
14 gauge steel which is powder coated and
backed with a high-grade reticulated foam.
Four ergonomically designed handles and an
integrated dolly board facilitate transport.