easily using two L-Track strips
on the top panel that work with
the cabinet’s center of gravity
for easy angle adjustment. A
short bottom strip serves as
an anchor point for fixing tilt
angles. The two USM-P Series
monitors are identical except
for the HF horn configurations.
The USM-1P has a narrow
beamwidth of 45° H x 45° V
to allow close placement with
minimal interaction. The USM-
100P offers a wider 100° H x
40° V pattern for broad
coverage in either wedge or
flown applications. Both horns
were developed in Meyer
Sound’s anechoic chamber,
with prototype designs
measured to 1 degree
resolution at 1/36 octave
intervals. The horns exhibit a
Constant Q characteristic, with
uniform beamwidth across the
horn’s operating range in both
the horizontal and vertical
planes. Amplitude attenuation
outside the beamwidth is rapid
and uniform at all frequencies,
with minimal side lobing.
The dual channel power
amplifier, a proprietary Meyer
Class AB/bridged design with
complementary power MOSFET
USM-P Series self-powered
stage monitors incorporate a
15-inch low frequency cone
driver, a 3-inch diaphragm
compression driver, phase-
corrected processing
electronics and a dual channel
power amplifier in a rugged
enclosure. Compared to
conventional designs, USM-P
Series monitors are uniquely
capable of producing flat
phase and amplitude response,
full bandwidth reproduction
and a near-perfect impulse
response. Performance
characteristics include a
maximum output of 132
dB peak SPL at 1 m with
exceptionally low distortion.
USM-P Series systems
excel in stage monitoring
applications that require
efficient response down to
30Hz for clean, high level
reproduction of bass and
drums. An additional benefit
of the design engineering and
system packaging of the USM-
P is its improved linearity and
lower susceptibility to feedback.
USM-P monitors can
be deployed as stage wedges
or flown as side-fill or choir
monitors. Rigging is accomplished
FEATURES
output stages, produces 350
Wrms per channel with less
than 0.02% distortion. The
integral driver protection circuit
effectively prevents voice coil
overheating and cone over
excursion, but without the
glaring compression effects
typical of many limiters. The
Intelligent AC
TM
power supply
provides automatic voltage
selection, EMI filtering, high
voltage transient suppression
and soft start at power-up.
The standard audio input
module includes an XLR-F
input connector, a loop-thru
XLR-M output connector and
24V fan connector (fan optional).
Other input module options are
available. Another optional
module allows integration into
Meyer Sound’s RMS (Remote
Monitoring System
TM
), a
Windows
TM
-based computer
network and software application
for monitoring a full range of
amplifier and driver operating
parameters. Both RMS and
audio input modules may be
installed in the field using only
a Phillips screwdriver.
Self-Powered Reinforcement Loudspeaker
USM-1P/100P
Integrated control
electronics and amplifiers
Bi-amplified
(350 Wrms/channel)
High-power, flat
frequency response
Phase-corrected
Constant-Q, HF coverage
Narrow (UMS-1P) or wide
(UMS-100P) HF coverage
Modular audio
input options
Intelligent AC
TM
System
Compatible with the
Remote Monitoring
System
TM
(RMS)
L-Track rigging system
Superior
engineering
for the art
and science
of sound.
USM-1P
USM-100P
PRELIMINAR
Y
