Overview
The USW-112P compact narrow subwoofer provides big bass sound for very tight spaces. Its compact rectangular enclosure and slanted connector panel enable flush-mounting of the cabinet against wall surfaces, reducing required installation depth to 12 inches, including connectors.
Designed to be the ideal companion to Meyer Sound’s ULTRA-X20, it also complements the low frequencies in other Meyer Sound loudspeakers, such as the UP-4slim and those in the UPM family.
The USW-112P has an operating frequency range of 35–140 Hz with a linear peak SPL of 123 dB, measured in half-space at 4 m and referred to 1 m using M-noise. The bass reflex cabinet employs a low-velocity port design for high efficiency and low port distortion.
The cabinet houses an open-loop, Class-D power amplifier with signal processing including correction filters for phase and frequency response, and driver protection circuitry. The amplifier/ processing package incorporates Meyer Sound’s Intelligent AC™, which auto-selects the correct operating voltage, suppresses high voltage transients, filters EMI and provides soft-start power-up.
Audio connectors are XLR (analog version) or etherCON TOP (Milan™ Certified digital version1), and power input and looping output connectors are PowerCON 20 (analog version) or powerCON TRUE1 TOP (digital and weather-protected models).
Remote monitoring is possible on the analog version via the optional RMS remote monitoring module, which in conjunction with the optional RMServer™ hardware unit, provides comprehensive monitoring of loudspeaker parameters from a host computer running Compass® Control Software. The digital version provides integrated monitoring via Compass Control Software.
Meyer Sound builds the USW-112P cabinet from premium birch plywood coated with a slightly textured black finish and includes a powder-coated, round-perforated steel grille to protect the drivers.
With its versatile shape, the USW-112P can be placed on the ground in either horizontal or vertical positions to accommodate installation requirements.
The USW-112P comes standard with M8 mounting points at the top and bottom for use with the optional U-bracket that enables wall, ceiling, or truss mounting. It also features an integral 35 mm pole mount receptacle with M20 threads for added stability.
Weather protection and custom color finishes for specific cosmetic requirements are available options.
Specifications
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ACOUSTICAL1 |
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Operating Frequency Range2 |
35 Hz – 140 Hz |
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Frequency Response3 |
36 Hz – 125 Hz ± 4 dB |
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Phase Response |
45 Hz – 120 Hz ±30° |
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Linear Peak SPL4 |
123 dB with > 10.5 dB crest factor (M-noise), 123 dB (Pink Noise), 125 dB (B-noise) |
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TRANSDUCER |
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Low Frequency |
One 12-inch cone driver; 3 Ω nominal impedance |
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AUDIO INPUT |
ANALOG AUDIO VERSION |
DIGITAL AUDIO VERSION |
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Type |
Differential, electronically balanced |
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Maximum Common Mode Range |
±15 V DC, clamped to earth for voltage transient protection |
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Connectors |
XLR 3-pin female input with male loop output; optional XLR 5-pin connector to accommodate both balanced audio and RMS signals; XLR 3-pin TOP (Total Outdoor Protection) connectors on weather-protected units only. |
etherCON TOP |
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Input Impedance |
10 kΩ differential between Audio(+) and Audio(-) |
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Wiring5 |
Pin 1: Chassis/earth through 1 kΩ, 1000 pF, 15 V clamp network to provide virtual ground lift at audio frequencies Pin 2: Audio + Pin 3: Audio – Pin 4: RMS (polarity insensitive) Pin 5: RMS (polarity insensitive) Case: Earth ground and chassis |
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Nominal Input Sensitivity |
0 dBV (1.0 V rms) continuous is typically the onset of limiting for noise and music |
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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. |
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Digital Format |
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Milan Certified |
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AMPLIFIER |
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Type |
Open-loop, Class-D |
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Total Output Power6 |
1200 W peak |
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THD, IM, TIM |
< 0.02% |
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Cooling |
Convection |
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AC POWER |
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Connector |
powerCON 20 input with loop output; powerCON TRUE1 TOP with loop output on digital and weather-protected units |
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Automatic Voltage Selection |
90–265 V AC, 50–60 Hz |
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Safety Rated Voltage Range |
100–240 V AC, 50–60 Hz |
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Turn-on and Turn-off Points |
90 V AC turn-on, no turn-off; internal fuse protection above 265 V AC |
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CURRENT DRAW |
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Idle Current |
0.23 A rms (115 V AC); 0.18 A rms (230 V AC); 0.25 A rms (100 V AC) |
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Maximum Long-Term Continuous Current (>10 sec) |
1.2 A rms (115 V AC); 0.7 A rms (230 V AC); 1.4 A rms (100 V AC) |
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Burst Current (<1 sec)7 |
3.6 A rms (115 V AC); 1.8 A rms (230 V AC); 4.1 A rms (100 V AC) |
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Maximum Instantaneous Peak Current |
8.9 A peak (115 V AC); 4.5 A peak (230 V AC); 10.3 A peak (100 V AC) |
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Inrush Current |
< 20 A peak |
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REMOTE MONITORING |
ANALOG AUDIO VERSION9 |
DIGITAL AUDIO VERSION |
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Optional RMS module: two-conductor twisted-pair network that reports all operating parameters of amplifiers to system operator’s host computer via the RMServer hardware unit |
Integrated monitoring via Compass Control Software |
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PHYSICAL |
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Dimensions |
W: 13.5 in (343 mm) x H: 23.5 in (597 mm) x D: 12 in (305 mm) |
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Weight |
45 lb (20 kg) |
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Enclosure |
Premium multi-ply birch with slightly textured black finish |
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IP Rating |
Weather-protected version rated IP54. See the USW-112P Operating Instructions for details |
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Protective Grille |
Powder-coated, round-perforated steel |
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Rigging |
Two integrated M8 threaded points; 35 mm Pole Mount with M20 thread; optional U-bracket for wall, ceiling, or truss mounting |
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