DESCRIPTION

The Meyer Sound DF-4 is a medium-throw downfill loudspeaker designed
for supplementing coverage in flown sound reinforcement systems. It
provides even coverage to the areas below and to the immediate front
of arrayed loudspeakers, and exhibits frequency and phase response
similar to other Meyer Sound loudspeakers that are typically used in
medium-to-large arrays. The enclosure shape and the high-frequency
horn coverage pattern are carefully selected to ensure adequate
coverage, minimize overlap and streamline rigging procedures.

The compact, vented DF-4 enclosure houses a direct-radiating 15-inch
low-frequency driver, and a 4-inch diaphragm compression driver
coupled to a symmetrical 50° horn. The two-channel class AB/H power
amplifier employs complementary power MOSFET output stages and
produces a total burst output of 1240 watts (620 watts per channel).
The integrated, field-replaceable amplifier and control unit is
equipped with TruPower limiting technology, and the power supply
incorporates Intelligent AC for fail-safe international operation.
Phase-corrected, active signal processing circuits help maintain
excellent performance and reliability, while the high input CMRR
permits long signal runs over shielded twisted-pair cable.

The DF-4 cabinet is coated with a textured black finish. The DF-4 is
compatible with Meyer Sound’s RMS remote monitoring system, which
provides monitoring of system performance over a Windows-based network.