Electro-Voice EVID C4.2 User manual

Key Features:
• 4" coaxial two-way
• Waveguide coupled Ti tweeter
• Full bandwidth overload protection
• Front baffle wattage tap adjustment
• Integrated low loss matching transformer
allows for either 70v/100v or 8-ohm
operation
• Includes tile bridge and mounting ring for
easy installation
• Integrated ported enclosure for extended
bass response
EVID C4.2 Ceiling
4” Two-Way
Coaxial Ceiling
Loudspeaker System
General Description:
The Electro-Voice ® EVID C4.2 loudspeaker system is a
complete two-way ceiling loudspeaker package. The package
consists of a bezel assembly, grille, rear enclosure, 4-inch coax
two-way loudspeaker and internal line-matching transformer. The
loudspeaker features a waveguide coupled titanium coated dome
tweeter. The EVID C4.2 loudspeaker utilizes a 2nd order
crossover network at 3.3 kHz, with a comprehensive protection
circuit to protect the network, woofer, and tweeter drivers from
excessive power levels. The C4.2 utilizes a transformer that
offers a selection of 1.88 (70-V only), 3.75, 7.5, 15 or 30 watts
delivered to the loudspeaker system using either 70-V or 100-V
lines, or 8 ohm bypass. Selection is via a convenient switch on
the front baffle. The perforated grille is finished in semi-gloss
white powder-coated enamel. The baffle and bezel are
constructed from UL 94V-0 rated ABS. The rear enclosure is
constructed from zinc-plated, heavy gauge steel. The rear
enclosure, with fiberglass damping material, provides an optimum
internal volume for extended low-frequency performance. A rear
cover, with provisions for a junction box fitting, provides access
to a 4-pin terminal block that allows direct connection to the
speaker with 12 gauge wire and provides pass through to
additional speakers. A tile bridge is included for safe suspension
of the C4.2 ceiling systems in a drop ceiling that uses mineral
wool, or other fiber-based ceiling tiles. The EVID line of ceiling
speakers has been designed to work together as a complete
system in a wide range of different ceiling constructions. They
provide wide dispersion, high-efficiency, high-maximum output,
ease of installation, and wide-range reproduction of music or
voice.
Technical Specifications:
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All Specifications based on Half Space Environment in ceiling.

Architects’& Engineers’Specifications: Frequency Response:
Block Diagram: Beamwidth:
Directivity:
PerformanceMatch:
• EVID C10.1 Subwoofer
• CPS-1 Power Amplifier
• CPS-2 Power Amplifier
• CPS-2T Power Amplifier
• MA-1206 Mixer Amplifier
• MA-1212 Mixer Amplifier
EVID C4.2 Part Number
• 301258-000
12000 Portland Avenue South, Burnsville, MN 55337
Phone:[phone], Fax:[phone]
www.electrovoice.com
© Telex Communications, Inc. 8/2002
Part Number 38110-125 Rev B
U.S.A. and Canada only. For customer orders, contact Customer Service at:
800/392-3497 Fax: [phone]
Europe, Africa, and Middle East only. For customer orders, contact Customer Service at:
+ 49 9421-706 0 Fax: + 49 9421-706 265
Other International locations. For customer orders, contact Customer Service at:
+ 1 952 884-4051 Fax: + 1 952 736-4212
For warranty repair or service information, contact the Service Repair department at:
800/685-2606
For technical assistance, contact Technical Support at: 866/78AUDIO
Specifications subject to change without notice.
Dimension Drawings:
The EVID C4.2 loudspeaker system shall be comprised of a UL 94V-0
fire rated ABS baffle/bezel assembly, zinc plated steel rear enclosure,
powder coated grille with safety tether, transformer with 8 ohm bypass
and 4-inch polypropylene low frequency transducer with coaxially-
mounted waveguide loaded 3/4-inch titanium coated dome tweeter. The
loudspeaker shall meet the following criteria: power rating shall be 80
watts of EIA RS-426A pink noise (6 dB crest factor). Frequency response,
uniform from 65 Hz to 20 Hz. Pressure sensitivity, 86 dB SPL at 1 meter
(3.3 feet) on axis with one watt of pink noise (ref. 20µPa). Minimum
impedance, 6.0 ohms. The loudspeaker shall be 181 mm (7.1 in.) in
diameter and 176 mm (6.9 in.) deep. Weight shall be 2.7 kg. (6.0 lb) The
coaxial ceiling loudspeaker shall be the Electro-Voice ® model EVID
C4.2.