The Electro-Voice

®

EP405 series loudspeaker systems are

complete full-range ceiling loudspeaker packages. The package

consists of a spring/bezel assembly, grille, rear enclosure, 4-inch

full-range loudspeaker and line-matching transformer. The

loudspeakers feature 4-inch curvilinear cones with high-linearity

treated surrounds together with high-temperature voice-coil

assemblies. The 405 series speaker components provide wide

and uniform dispersion throughout the critical speech bandwidth.

The EP405-8T utilizes a transformer that offers a selection of 1,

2, 4 and 8 watts delivered to the loudspeaker system using either

70-V or 100-V lines.

The EP405-16T utilizes a transformer that offers a selection of 2,

4, 8 and 16 watts delivered to the loudspeaker system using

either 70-V or 100-V lines.

The bezel and perforated grille are finished in semigloss white

powder-coated enamel. The rear enclosure is constructed from

zinc-plated cold-rolled steel.

The rear enclosure provides an optimum internal volume

ensuring extended low-frequency performance. It is constructed

from heavy-gauge, rugged cold-rolled steel, reinforced to prevent

panel resonance, and finished with rust-inhibiting zinc plating. A

rear cover, with provisions for a junction box fitting, provides

access to an 8-pin terminal block that allows direct connection to

each of the transformer taps.