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 Electro-Voice 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 Electro-Voice 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 Electro-Voice C4.2
ceiling systems in a drop ceiling that uses mineral wool, or other fiber-based
ceiling tiles. The Electro-Voice 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.
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