CIS120 –
3
2. INTRODUCTION
The CIS120 is a high output ceiling-mounted coaxial
loudspeaker designed for fixed installation into high ceiling
plenum spaces or open structures. Utilizing a 12" coaxial
driver, the CIS120 delivers coherent point-source reproduction,
as well as superior low-frequency dispersion. The result is
superior full-range performance in any distributed loudspeaker
system.
The CIS120 is supplied with an integral 70V/100V line
transformer, rated to a maximum of 128 watts. Tap settings are
adjustable by means of a recessed rotary switch on the front
bezel, and allows selection of 128, 64, 32, and 16 watt taps at
70 V, and 128, 64, and 32 watt taps at 100 V. In addition, the
transformer can be bypassed, presenting an 8-ohm load to low-
impedance systems.
A sealed, paint-ready, 18-gauge steel back can is square
in shape, and designed to mount in a 24-inch ceiling grid.
The zinc-coated back can includes a recessed euroblock input
connector, with detachable mating plug, concealed behind a
hinged metal cover plate. A ceramic screw-terminal block is
also present. Four included eye-bolts are screwed into the back
can prior to suspending the assembly.
The baffle/can assembly is shipped with the transducer
installed. The powder-coated perforated steel grill is easily
installed once the wattage tap has been selected.
Optional installation kits include a 4-piece cable kit (AC-CK)
for suspension, and a 4-piece square trim ring kit (AC-TRK) that
dresses the baffle into suspended ceiling tile surrounds. (See
page 12 for more details of these kits.)
FEATURES
• High speech intelligibility at high power levels
• High output and smooth low-frequency dispersion
• Fast and easy installation
• Seamless, deep-drawn back can
• Integrated 4-point mounting system
• 12" coaxial driver
• 70V/100V transformer built-in
• 128, 64, 32, and 16 watt taps at 70 V
• 128, 64, and 32 watt taps at 100 V
• 8 ohm setting on selector switch (direct)
• Removable grill for access to transformer taps
• Euroblock Phoenix-type input connector
• Ceramic screw-terminal input connectors
• Through-outputs for easy parallel connections to other
loudspeakers
• Cable strain relief
• Input connection covers
• Refined design and appearance
• Optional 4-piece cable suspension kit (AC-CK)
• Optional 4-piece trim ring kit (AC-TRK) to dress the
installation into 24" x 24" ceiling tile
APPLICATIONS
• Foreground/background music systems
• Paging systems
• Continuous-duty applications
• Sound reinforcement systems
