Datasheet (mps-481_ds_b)
DATASHEET
Industrial Series
MPS-481 : Power Supply
9.95
[252.69mm]
2 x Ø0.22
[Ø5.54mm]
4.64
[117.86mm]
3.89
[98.81mm]
1.00
[25.40mm]
2.76
[70.10mm]
5.28
[134.21mm]
2.54
[64.52mm]
1.51
[38.35mm]
1.58
1.64
[41.74mm] [40.13mm]
MPS-481 (shown without mounting bracket)
The MPS‑481 external power supply provides
DC power for a single MM‑4XP loudspeaker.
The MM‑4XP is a self powered, miniature
loudspeaker designed for high‑quality
distributed systems. Housed in a compact
aluminum enclosure, the MM‑4XP is especially
suitable for installations involving space
limitations and visibility concerns.
The MPS Power Supplies are the required
method of powering MM‑4XP loudspeaker
systems. The compact MPS‑481 is designed
for powering single loudspeakers, while the
rackmount 8-channel MPS‑488HP IntelligentDC
power supply is ideal for larger installations
with multiple loudspeakers.
The MPS‑481 includes a 10-foot cable that
receives balanced audio from its XLR female
input connector and routes the audio, along
with DC power from the power supply to
a Switchcraft® EN3™ 5-pin connector that
attaches to the MM‑4XP input connector.
The MPS‑481 can deliver DC power to the
MM‑4XP loudspeaker at cable lengths of up
to 300 feet with just 1 dB of loss in peak
SPL using 18 AWG wire. The use of composite
multiconductor cables (such as Belden ®
1502) allows a single cable to carry both
audio and DC power from the MPS‑481 to
the loudspeaker. Longer cable lengths are
possible for moderate applications that don't
drive the loudspeakers to maximum output,
as well as for installations with heavier wire
gauges.
Amplifier and signal processing circuits for
the MM‑4XP are designed to tolerate voltage
drops up to 30 percent, thereby accommodating
light‑gauge cables and long cable runs. Internal
energy storage circuits for the MM‑4XP
minimize the system's peak‑to‑average
current demands, ensuring efficient use of the
MPS‑481's DC output.
The MPS‑481 includes a bracket for mounting
the power supply on walls and ceilings.
* The MPS-481 power supply is only compatible
with MM-4XP loudspeakers and can power a
maximum of one unit. The MPS-481 is not
compatible with other larger loudspeakers
with IntelligentDC technology, like the UP-4XP,
HMS‑10, and MM-10XP models.
Specifications
Operational Voltage Range
Safety Agency Voltage Rating
Automatic
90–264 V AC
100–240 V AC; 50/60 Hz
Current Draw
Idle Current
Max. Long-Term Continuous Current (>10 sec)
Bust Current (<1 sec)
Inrush Current
0.19 A rms (110 V AC), 0.10 A rms (230 V AC), 0.20 A rms (100 V AC)
0.43 A rms (110 V AC), 0.30 A rms (230 V AC), 0.50 A rms (100 V AC)
0.52 A rms (110 V AC), 0.34 A rms (230 V AC), 0.60 A rms (100 V AC)
26.4 A peak (110 V AC), 41.2 A peak (230 V AC), 25.2 A peak (100 V AC)
Output Voltage
AC Input Connector
DC Output Connector
Power Indicator
48 V DC
IEC 320 C6
Molex® 43645-0200, cable length approximately 6 ft (1.83 m)
Green LED on top of unit
Dimensions9.95" w x 1.58" h x 2.54" d
(252.69 mm x 40.13 mm x 64.52 mm)
(with bracket)9.95" w x 1.64" h x 2.76" d
(252.69 mm x 41.74 mm x 70.10 mm)
Weight
1.0 lbs (0.46 kg)
V
R h e i nl a
Meyer Sound
Galileo 408
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Note: Voltages above 264 V AC may cause permanent damage
to the power supply. Voltages below 90 V AC may result in
intermittent operation.
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Voltage Selection
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MPS-481 — 04.163.036.01 B
Copyright © 2014
Meyer Sound Laboratories Inc.
All rights reserved
meyer sound laboratories inc.
2832 San Pablo Avenue
Berkeley, CA 94702
T: +1 510 486.1166
F: +1 510 486.8356
techsupport@meyersound.com
www.meyersound.com
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