The UPM‑1XP, with IntelligentDC technology, is a compact,
externally‑powered, wide‑coverage loudspeaker for professional
sound reinforcement. It offers the same high sound pressure levels,
low distortion, and uniform directional control as the UPM‑1P but
with the added flexibility of external DC power—enabling lengthy
cable runs without AC conduits. Ideal usage of the UPM‑1XP is
for applications requiring wide‑coverage in a small, inconspicuous
cabinet where AC cabling is not feasible.
As a standalone loudspeaker, use the UPM‑1XP for vocal
reinforcement, frontfill coverage, or delay coverage for
under‑balcony applications. For full‑range systems, pair the
UPM‑1XP with Meyer Sound’s UMS‑1XP ultracompact subwoofer
with IntelligentDC technology.
The UPM‑1XP’s high‑frequency section includes a 1‑inch metal
dome tweeter on a constant‑directivity, high‑frequency horn with
a 100° beamwidth. The low/mid‑frequency section includes two
5‑inch cone transducers that work in parallel at low frequencies—
delivering a combined acoustic output—with one of the drivers
rolling off above 320 Hz to prevent interference in the crossover
region due to comb filtering effects. A three‑channel amplifier,
which includes active crossover, driver protection, and frequency
and phase correction circuitry, powers the proprietary drivers that
Meyer Sound manufactures at its factory in Berkeley, California.
With IntelligentDC technology, the UPM‑1XP receives DC power
and balanced audio from a single loudspeaker connector, available
as Phoenix™ 5‑pin male, sealed SwitchCraft® EN3™ 5‑pin male,
or sealed ECO‑M 7‑pin male. Powering the unit from an external
7.70 in
[196 mm]
6.85 in
[174 mm]
4.25 in
[108 mm]
[230 mm]
9.05 in
3.90 in
[99 mm]
3.70 in
[94 mm]
source eliminates the need for wiring conduits while still preserving
the advantages of self‑powered systems. The UPM‑1XP’s amplifier
and signal‑processing circuits store DC power and tolerate voltage
drops, thereby accommodating light‑gauge cables and lengthy
cable runs.
The UPM‑1XP requires a Meyer Sound IntelligentDC external
power supply. For larger installations, the single‑space rack‑mount
MPS‑488HP IntelligentDC power supply unit distributes DC power
and balanced audio to up to eight UPJunior‑XP loudspeakers
or other Meyer Sound IntelligentDC loudspeakers. For smaller
installations, the MPS‑482HP IntelligentDC power supply offers
two channels of audio and DC power. Composite multiconductor
cables, such as Belden®1502 or equivalent, can deliver both DC
power and balanced audio to loudspeakers at cable lengths up
to 150 feet with just 1 dB of loss in peak SPL using 18 AWG wire.
Longer cable runs are possible with heavier gauge wires.
Meyer Sound’s RMS™ remote monitoring system, which offers
comprehensive monitoring of loudspeaker parameters from a
®
Mac
or Windows®‑based computer running Compass® control
software, is optionally available for the MPS‑488HP.
Meyer Sound coats the UPM‑1XP cabinet with a slightly textured
black finish and includes three threaded, recessed nut plates
(3/8 in‑16 or metric M10). Optional rigging hardware includes the
MYA‑UPM mounting yoke, MUB‑UPM U‑bracket, and MSA‑UPM
stand adapter. Other UPM‑1XP options include weather protection
and custom color finishes for fixed installations and installations
with specific cosmetic requirements.
Page 2
FEATURES AND BENEFITS
• IntelligentDC technology affords the flexibility of lengthy cable runs without AC conduits
• Extraordinary fidelity and power capability delivered in an ultracompact package
• Metal dome tweeter provides a smooth high‑frequency response
• Wide, symmetrical pattern covers a broad listening area
• Unique crossover design eliminates combing and yields a consistent midrange response
• Exceptional SPL to size ratio supports a variety of applications
APPLICATIONS
• Frontfill and under‑balcony fill coverage
• Theatrical sound reinforcement
• Portable and installed AV systems
• Houses of worship
• Compact voice reinforcement systems
ACCESSORIES AND ASSOCIATED PRODUCTS
MUB-UPM U-Bracket: Allows a UPM‑1XP loudspeaker to be mounted to a wall (in either vertical or horizontal orientations), to the ceiling or on the
floor.
MYA-UPM Yoke: Cradle‑style mounting yoke that suspends a single UPM‑1XP loudspeaker and supports a wide range of horizontal and vertical
adjustment. The yoke attaches to the top and bottom nut plates and includes 3/8‑inch‑16 and M10 hardware.
MSA-UPM Stand Adapter: Mount the UPM‑1XP loudspeaker on a stand using the MSA‑UPM stand adapter along with a third‑party loudspeaker
stand. The MSA‑UPM kit includes 3/8‑inch‑16 and M10 hardware.
MPK-POLE 35MM Adjustable Pole: Pole with adjustable length of 32–55 in, 35 mm diameter; includes a 38 mm adapter to be used with 38 mm stand
adapters.
Galileo GALAXY Network Platform: The Galileo GALAXY Network Platform provides state‑of‑the‑art audio control technology for loudspeaker
systems with multiple zones. With immaculate sonic performance, it provides a powerful tool set for corrective room equalization and creative fine‑
tuning for a full range of applications.
MPS-488HP External Power Supply: Rack‑mount unit that delivers balanced audio and high‑current DC power to up to eight loudspeakers; versions
available with either Phoenix or EN3 channel output connectors.
MPS-482HP External Power Supply: 1RU 1/2 width rack unit that delivers balanced audio and high‑current DC power to up to two audio channels;
rack mount or use available options to mount on ceiling, wall, pole or truss configurations.
MPK-POLE 35MM Adjustable
Pole
MUB-UPM U-BracketMYA-UPM YokeMSA-UPM Stand Adapter
GALAXY Network PlatformMPS-488HP External Power
Supply
MPS-482HP External Power
Supply
Page 3
SPECIFICATIONS
ACOUSTICAL
1
COVERAGE
TRANSDUCERS
AUDIO INPUT
Operating Frequency Range275 Hz – 20 kHz
Frequency Response
3
80 Hz – 16 kHz ±4 dB
Phase Response 300 Hz – 18 kHz ±60 degrees
Linear Peak SPL
4
118.5 dB with crest factor >14 dB (M-noise), 113 dB (Pink noise), 115.5 (B‑noise)
Horizontal Coverage 100°
Vertical Coverage 100°
Low Frequency Two 5‑inch cone drivers; 8 Ω nominal impedance
High Frequency One 1‑inch metal dome tweeter; 8 Ω nominal impedance
Type Differential, electronically balanced
Maximum Common Mode Range ±15 V DC, clamped to earth for voltage transient protection
Connectors
Phoenix 5‑pin Male; SwitchCraft 5‑pin Male; ECO‑M 7‑pin Male (two pins for 48 V DC power, three
pins for balanced audio)
Input Impedance 10 kΩ differential between positive (+) and negative (–) audio pins
Wiring
Phoenix 5‑pin Male
Pin 1: DC Power (‑)
Pin 2: DC Power (+)
Pin 3: Chassis/earth through
5
1 kΩ, 1000 pF, 15 V clamp
network to provide virtual
ground lift at audio frequencies
Pin 4: Audio (‑)
Pin 5: Audio (+)
SwitchCraft EN3 5‑pin Male
Pin 1: DC Power (‑)
Pin 2: DC Power (+)
Pin 3: Chassis/earth through
1 kΩ, 1000 pF, 15 V clamp
network to provide virtual
ground lift at audio frequencies
Pin 4: Audio (‑)
Pin 5: Audio (+)
ECO‑M 7‑pin Male
Pin 1: DC Power (‑)
Pin 2: DC Power (+)
Pin S: Chassis/earth through
1 kΩ, 1000 pF, 15 V clamp
network to provide virtual
ground lift at audio frequencies
Pin 5: Audio (‑)
Pin 6: Audio (+)
Nominal Input Sensitivity –8.0 dBV (0.4 V rms) continuous average is typically the onset of limiting for noise and music
5
AMPLIFIER
DC POWER
RMS NETWORK (OPTIONAL)
Input Level
Audio source must be capable of producing of +20 dBV (10 V rms) into 600 Ω to produce the
maximum peak SPL over the operating bandwidth of the loudspeaker.
Type 3‑channel, class D
6
Total Output Power
650 W peak
THD, IM, TIM < 0.02%
Cooling Convection
Connector
Phoenix 5‑pin Male; SwitchCraft 5‑pin Male; ECO‑M 7‑pin Male (two pins for 48 V DC power, three
pins for balanced audio)
Safety Rated Voltage Range 48 V DC
Equipped with two‑conductor twisted‑pair network, reporting all operating parameters of amplifiers to
system operator’s host computer.
Page 4
SPECIFICATIONS, CONT’D.
PHYSICAL
Dimensions W: 6.85 in (174 mm) x H: 18.00 in (457 mm) x D: 7.70 in (196 mm)
Weight 17 lb (7.7 kg)
Enclosure Premium multi‑ply birch with slightly textured black finish
Protective Grille Powder‑coated, hex‑stamped steel with black mesh
Rigging Three 3/18‑inch‑16 or metric M10 nut plates
NOTES
1. Loudspeaker system predictions for coverage and SPL are available in Meyer Sound’s MAPP System Design Tool.
2. Recommended maximum operating frequency range. Response depends on loading conditions and room acoustics.
3. Free‑field, measured with 1/3 octave frequency resolution at 4 m.
4. Linear Peak SPL is measured in free‑field at 4 m referred to 1 m. Loudspeaker SPL compression measured with M‑noise at the onset of limiting,
2‑hour duration, and 50‑degree C ambient temperature is < 2 dB.
M-noise is a full bandwidth (10 Hz–22.5 kHz) test signal developed by Meyer Sound to better measure the loudspeaker’s music performance.
It has a constant instantaneous peak level in octave bands, a crest factor that increases with frequency, and a full bandwidth Peak to RMS
ratio of 18 dB. The presence of a greater‑than (>) symbol with regard to crest factor indicates it may be higher depending on EQ and boundary
loading.
Pink noise is a full bandwidth test signal with Peak to RMS ratio of 12.5 dB.
B-noise is a Meyer Sound test signal used to ensure measurements reflect system behavior when reproducing the most common input spectrum,
and to verify there is still headroom over pink noise.
5. Pins 3 and 4 not used in ECO‑M connector.
6. Peak power based on the maximum unclipped peak voltage the amplifier will produce into the nominal load impedance.
ARCHITECTURAL SPECIFICATIONS
The loudspeaker shall be a self‑powered, full‑range system. Its transducers
shall include two 5‑inch cone drivers and one 1‑inch metal dome tweeter.
The loudspeaker system shall incorporate internal processing and a
three‑channel amplifier, one channel for each driver. Processing functions
shall include equalization, phase correction, signal division, and driver
protection. Amplifier burst output power shall be 650W total. Distortion
(THD, IM, TIM) shall not exceed 0.02%.
Performance specifications for a typical production unit shall be as follows:
operating frequency range, 75Hz–20kHz; phase response, 300Hz–18kHz
±60°; linear peak SPL is 118.5 dB with crest factor >14 dB, measured with
M‑noise, free‑field at 4 m referred to 1m; coverage shall be 100° horizontal
by 100° vertical.
The loudspeaker shall receive DC power and balanced audio from a
single input connector, available as Phoenix 5‑pin male, sealed EN3 5‑pin
Meyer Sound Laboratories, Inc.
2832 San Pablo Avenue
Berkeley, CA 94702
male, or sealed ECO‑M 7‑pin male (two pins for DC power, three pins for
balanced audio). The audio input shall be electronically balanced with a
10kΩ impedance and accept a nominal –8.0dBV (0.4V rms) input signal.
Power requirements for the loudspeaker shall be a Meyer Sound
IntelligentDC power supply capable of delivering 48V DC.
All components shall be mounted in an acoustically vented trapezoidal
enclosure constructed of premium multi‑ply birch with a slightly textured
black finish. The protective grille shall be powder‑coated, hex‑stamped
steel with black mesh screen. Rigging shall be three 3/8‑inch‑16 or M10
nut plates. Dimensions shall be W: 6.85 in (174 mm) x H: 18.00 in (457 mm)
x D: 7.70 in (196 mm). Weight shall be 17lb (7.7kg).