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DATASHEET LF
USW-210P Compact Narrow Subwoofer
The USW-210P compact narrow subwoofer provides robust,
extended low frequency response for installed sound applications
that require convincing bass impact from a slender, low profile
loudspeaker. Its dual-driver configuration permits a narrow form
factor that fits into restricted architectural spaces to produce
output levels equal to or exceeding systems with single 12-inch
(or larger) drivers. Its slanted connector panel enables flushmounting the cabinet against wall surfaces, reducing required
installation depth to 12 inches, including connectors.
The USW-210P is ideal for installations requiring high
performance and versatility along with an appealing, discreet
aesthetic appearance. The USW-210P integrates easily with
Meyer Sound loudspeaker systems, such as CAL™ and ULTRA
Series loudspeakers.
The USW-210P has an operating frequency range of
with a conservatively rated linear peak SPL of 126 dB with crest
factor >11.5 dB, measured in half-space at 4 m and referred to
1 m using M-noise
the same port design as Meyer Sound’s flagship 1100-LFC
low frequency control element for high efficiency and low port
distortion.
The cabinet houses a two-channel Class D power amplifier with
signal processing including crossover, driver protection, and
frequency and phase correction. The built-in crossover accepts
full-range signals, which enables daisy-chain signal distribution,
and eliminates the need for external crossovers in smaller
systems.
3
. The long skinny bass reflex cabinet employs
30–140 Hz
The Intelligent AC™ power supply provides automatic voltage
selection, EMI filtering, soft current turn-on, and surge
suppression.
The optional RMS™ remote monitoring system module provides
comprehensive, real-time information about loudspeaker
parameters from a Mac
Compass
XLR 5-pin connectors allow composite cables to carry both
balanced audio and RMS signals.
Meyer Sound constructs the USW-210P cabinet from premium
birch plywood coated with a durable black-textured finish and
includes a stamped-steel grille to protect the drivers. Weather
protection and custom color finishes for specific cosmetic
requirements are available options.
With its versatile shape, the USW-210P can be placed on the
ground in a horizontal or vertical position to accommodate
installation requirements.
The USW-210P comes standard with M8 mounting points at the
top and bottom for use with the optional U-bracket that enables
wall or ceiling mounting.
In addition, the USW-210P can be securely mounted in a vertical
orientation (connectors at top or bottom) using an optional
aluminum base plate.
®
control software via the
®
or Windows®-based
RMServer interface. Optional
computer running
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FEATURES AND BENEFITS
• High power-to-size ratio
• Discrete appearance and versatile, as it accommodates either vertical or horizontal placement
• Fits into tight architectural spaces at only 12 inches deep including connectors
• Clean and low distortion output due to its low air velocity port
APPLICATIONS
• Commercial installation
• Theatrical sound reinforcement
• Houses of worship
• Conference rooms
• High-end home theatre
• AV systems
ACCESSORIES
MBP-USW-210P Base Plate: Aluminum base plate enhances stability when placing the USW-210P free-standing vertically (connectors at top or
bottom).
MUB-USW-210P U-Bracket: U-shaped mounting bracket allows mounting of the USW-210P against a wall or ceiling.
MUB-USW-210P U-bracket (ceiling mount)
MBP-USW-210P Base Plate MUB-USW-210P U-bracket (wall mount)
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SPECIFICATIONS
ACOUSTICAL
TRANSDUCERS
AUDIO INPUT
Operating Frequency Range130–140 Hz
Frequency Response
2
32–123 Hz ±4 dB
Phase Response 40–123 Hz ±30°
Linear Peak SPL
3
126 dB with crest factor >11.5 dB (M-noise), 126 dB (Pink noise), 127 dB (B-noise)
Coverage 360° (single unit), varies with number of units and configuration
Low Frequency Two 10-inch cone drivers, nominal impedance 4 Ω
Type Differential, electronically balanced
Maximum Common Mode Range ±15 V DC, clamped to earth for voltage transient protection
Connectors
4
XLR 3- or 5-pin female input with male loop output
Input Impedance 10 kΩ differential between pins 2 and 3
Pin 1: Chassis/earth through 1 kΩ, 1000 pF, 15 V clamp network to provide virtual ground lift at audio
frequencies
Pin 2: Signal +
Wiring
Pin 3: Signal -
Case: Earth ground and chassis
AMPLIFIERS
AC POWER
CURRENT DRAW
Max Long-Term Continuous Current (>10 sec) 1.4 A rms (115 V AC); 0.7 A rms (230 V AC); 1.6 A rms (100 V AC)
Nominal Input Sensitivity 0 dBV (1 V rms) continuous is typically the onset of limiting for noise and music
Input Level
Audio source must be capable of producing a minimum of +20 dBV (10 V rms) into 600 Ω to produce
maximum peak SPL over the operating bandwidth of the speaker
Type 2-channel (class D) with crossover
Total Output Power
5
1800 W peak
THD, IM, TIM < 0.02%
Load 4 Ω per channel
Cooling Convection
Connector
powerCON 20 input with loop output
Automatic Voltage Selection Automatic
Safety Agency Rated Operating Range 100–240 V AC, 50–60 Hz
Turn-on and Turn-off Points
90 V AC turn-on, no turn-off; internal fuse-protection above 265 V AC
Idle Current 0.27 A rms (115 V AC); 0.25 A rms (230 V AC); 0.29 A rms (100 V AC)
Burst Current (<1 sec)
6
4.5 A rms (115 A AC); 2.1 A rms (230 V AC); 4.8 A rms (100 V AC)
Maximum Instantaneous Peak Current 9.7 A peak (115 V AC); 4.6 A peak (230 V AC); 10.8 A peak (100 V AC)
Inrush Current <20 A peak
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SPECIFICATIONS, CONT’D.
PHYSICAL
Dimensions W: 12.00 in (304.8 mm) x H: 41.33 in (1049.8 mm) x D: 12.00 in (304.8 mm)
Weight 56 lb (25.40 kg)
Enclosure Premium birch plywood, slightly textured black finish; powder-coated, stamped-steel, protective grille
Rigging Top and bottom mounting points with M8 threads
RMS NETWORK (OPTIONAL)
Equipped for two-conductor, twisted-pair network; reports all amplifier operating parameters to host
Type
computers
NOTES
1. Recommended maximum operating frequency range. Response depends upon loading conditions and room acoustics.
2. Measured in half-space with pink noise at 4 meters, 1/3-octave frequency resolution.
3. Linear Peak SPL is measured in half-space 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, (10Hz–22.5kHz) 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.
4. XLR 5-pin connectors accommodate both balanced audio and RMS signals.
5. Peak power based on the maximum unclipped peak voltage the amplifier will produce into the nominal load impedance.
6. AC power cabling must be of sufficient gauge so that under burst current rms conditions, cable transmission losses do not cause the
loudspeaker’s voltage to drop below the specified operating range.
ARCHITECTURAL SPECIFICATIONS
The loudspeaker shall be a self-powered, sub-bass system. The
transducers shall consist of two 10-inch cone drivers. The loudspeaker
shall incorporate internal processing electronics and a two-channel
amplifier, one channel for each driver. Processing functions shall include
crossover, driver protection, and frequency and phase correction. Amplifier
channels shall be class D. Amplifier output power shall be 1800W peak
total. Distortion (THD, IM, TIM) shall not exceed 0.02%.
Performance specifications for a typical production unit shall
be as follows, measured at 1/3-octave resolution: operating
frequency range shall be 30 Hz – 140 Hz; phase response shall be
40 Hz – 123Hz ±30°; linear peak SPL shall be 126 dB with crest factor
>11.5 dB, measured in half-space with M-noise at 4 m referred to 1 m. The
coverage shall be 360° (single unit).
The loudspeaker shall be equipped with a XLR 3-pin or 5-pin female
connector with male loop output. The audio input shall be differential and
electronically balanced with 10 kΩ impedance, and a continuous 0dBV
(1V rms) input signal shall typically drive the speaker to the onset of limiting
for noise and music.
Meyer Sound Laboratories, Inc.
2832 San Pablo Avenue
Berkeley, CA 94702
+1 510 486.1166
www.meyersound.com/contact
www.meyersound.com
Power requirements for the loudspeaker shall be 100–240 V AC, 50-60
Hz. Maximum long-term continuous current draw for the loudspeaker
(>10sec) shall be 1.4 A rms (115 V AC), 0.7 A rms (230 V AC), or 1.6 A rms
(100 V AC). The power supply shall provide automatic voltage selection,
EMI filtering, soft current turn-on, and surge suppression.
All components shall be mounted in an acoustically vented, box-shaped
enclosure constructed of premium birch plywood coated with a durable,
black-textured finish. Top and bottom shall incorporate M8 threads. The
front protective grille shall be powder-coated, stamped steel.
Dimensions for the loudspeaker shall be W: 12.00 in (304.8 mm) x
H:41.33in (1049.8 mm) x D: 12.00 in (304.8 mm) without mounting bracket.
Weight shall be 56lb (25.40 kg).
The loudspeaker shall be the Meyer Sound USW-210P.
USW-210P
04.277.001.02 B2
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