The new Meyer Sound DF-4
is a medium-throw down fill selfpowered
loudspeaker system
designed for supplementing
coverage in systems employing
suspended loudspeaker arrays.
It provides even coverage to the
areas below and to the front
of the arrayed loudspeakers
above, with frequency and phase
response similar to Meyer Sound
loudspeaker components
typically used in medium-tolarge
loudspeaker systems. The
self-powered DF-4 produces a
maximum peak output of 138
dB SPL (@ 1 meter) within its
operating frequency range of 60
Hz to 18 kHz.
All aspects of the DF-4
design have been tailored for
this specific application. The
enclosure shape and the highfrequency
horn coverage pattern
were carefully selected to ensure
that adequate coverage is
provided, minimal overlap is
maintained and rigging is
streamlined. The DF-4 can be
incorporated easily into arrays
consisting of Meyer Sound’s
Type 4 (MSL-4, DS-2P, DS-4P,
PSW-2) and Type 6 (MSL-6,
MSL-5, PSW-6) self-powered
loudspeaker systems. Standard
L-Track rigging hardware allows
easy integration into QuickFly™
systems, with ring and stud
fittings available as an option.
Additionally, the DF-4 works
very well in other supplemental
fill applications such as underbalcony,
effects or surround
sound. It also can be used to
build small, stand-alone arrays.
The compact, vented
enclosure houses a direct radiating MS-815 15” low
frequency driver, and an
MS-2001C 4-inch diaphragm
compression driver coupled
to a symmetrical 50° horn.
The amplifier, controller and
power supply electronics are
integrated into a single, fieldreplaceable
module. The twochannel
class AB/H power
amplifier employs complementary
power MOSFET
output stages and produces
a total maximum output of
1240 W (620 Wrms/channel).
TruPower limiting technology
ensures maximum driver
protection, reduces power
compression and permits
higher constant output for
extended periods. The DF-4’s
Intelligent AC power supply
provides automatic voltage
selection, EMI filtering, soft current turn-on and surge
suppression. Phase-corrected,
active processing circuits help
maintain excellent performance
and reliability, while the high
common-mode rejection of the
laser-trimmed differential input
permits long signal runs
through a simple twisted pair
cable
The DF-4 cabinet is coated
with a textured black paint finish
(other colors to order) with
carpet covering available as an
option. The DF-4 is compatible
with Meyer Sound’s optional
RMS (Remote Monitoring Sys–
tem), which provides comprehensive
monitoring of system
performance parameters over a
Windows™-based network
is a medium-throw down fill selfpowered
loudspeaker system
designed for supplementing
coverage in systems employing
suspended loudspeaker arrays.
It provides even coverage to the
areas below and to the front
of the arrayed loudspeakers
above, with frequency and phase
response similar to Meyer Sound
loudspeaker components
typically used in medium-tolarge
loudspeaker systems. The
self-powered DF-4 produces a
maximum peak output of 138
dB SPL (@ 1 meter) within its
operating frequency range of 60
Hz to 18 kHz.
All aspects of the DF-4
design have been tailored for
this specific application. The
enclosure shape and the highfrequency
horn coverage pattern
were carefully selected to ensure
that adequate coverage is
provided, minimal overlap is
maintained and rigging is
streamlined. The DF-4 can be
incorporated easily into arrays
consisting of Meyer Sound’s
Type 4 (MSL-4, DS-2P, DS-4P,
PSW-2) and Type 6 (MSL-6,
MSL-5, PSW-6) self-powered
loudspeaker systems. Standard
L-Track rigging hardware allows
easy integration into QuickFly™
systems, with ring and stud
fittings available as an option.
Additionally, the DF-4 works
very well in other supplemental
fill applications such as underbalcony,
effects or surround
sound. It also can be used to
build small, stand-alone arrays.
The compact, vented
enclosure houses a direct radiating MS-815 15” low
frequency driver, and an
MS-2001C 4-inch diaphragm
compression driver coupled
to a symmetrical 50° horn.
The amplifier, controller and
power supply electronics are
integrated into a single, fieldreplaceable
module. The twochannel
class AB/H power
amplifier employs complementary
power MOSFET
output stages and produces
a total maximum output of
1240 W (620 Wrms/channel).
TruPower limiting technology
ensures maximum driver
protection, reduces power
compression and permits
higher constant output for
extended periods. The DF-4’s
Intelligent AC power supply
provides automatic voltage
selection, EMI filtering, soft current turn-on and surge
suppression. Phase-corrected,
active processing circuits help
maintain excellent performance
and reliability, while the high
common-mode rejection of the
laser-trimmed differential input
permits long signal runs
through a simple twisted pair
cable
The DF-4 cabinet is coated
with a textured black paint finish
(other colors to order) with
carpet covering available as an
option. The DF-4 is compatible
with Meyer Sound’s optional
RMS (Remote Monitoring Sys–
tem), which provides comprehensive
monitoring of system
performance parameters over a
Windows™-based network
Datasheet Pdf