The Clair Brothers CS218 is the latest dual
18” sub-low frequency loudspeaker designed
to provide maximum sub bass reinforcement
and low frequency augmentation in fixed
installations.
The CS218’s high-output makes it an ideal
companion for a variety of Clair Brothers’ full
range installation 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, high-performance subwoofer that
provides tightly controlled low frequency
extension.

As with all Clair Brothers products, the
CS218 is constructed of the finest Baltic
birch plywood with a rugged epoxy 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.

AUDIO SPECIFICATIONS

Loudspeaker Type    

Dual 18in. Sub-Low

Frequency Response (+/-2dB)

Single Cabinet

-10 dB Point

38Hz–180Hz
32Hz
Recommended Power Amplifier   2400–4800W @ 4 Ohms
Sensitivity(1Watt @ 1 Meter)

LF

103 dB SPL

Maximum Output

Cont.
Peak

131 dB SPL
134 dB SPL

Drivers LF (2) 18 in. (457.2mm)
Nominal Impedance LF

(2) 8 Ohms

Power Handling

 

Nominal

Peak

1400W

2800W

Dispersion

 

 

Input Connection Standard
Optional
(2) EP4 Connectors
(1 Male, 1 Female)
(1) 4-Position Terminal Strip

 

MECHANICAL SPECIFICATIONS

Enclosure

Shell

Finish

18mm Baltic Birch

Black Epoxy Mastic

Grille   Perforated Steel, Foam Backed
Dimensions Height
Width
Depth
25.11 in. (637.7mm)
41.96 in. (1065.7mm)
28.50 in. (723.9mm)
Weight   203 lbs. (92.1kg)
Shipping Weight   230 lbs. (104.3kg)
Rigging Attachments