Overview
Meyer Sound’s 900-LFC compact low-frequency control element reproduces low frequencies at high continuous output levels with extremely low distortion. The 900-LFC offers the same sonic linearity as Meyer Sound’s 1100-LFC low-frequency control element in a smaller, lighter cabinet, making it ideal for building scalable systems to suit touring applications or fixed installations of any size.
A newly designed class D amplifier affords unprecedented efficiency to the 900-LFC, significantly lowering distortion while reducing power consumption and operating temperature. A single, field-replaceable module contains the on-board amplifier and control circuitry.
In addition to pairing with LEOPARD™ systems, the 900-LFC integrates easily with other Meyer Sound loudspeaker systems, including LEO-M™, LYON™, and ULTRA Series loudspeakers.
Meyer Sound’s Galileo® GALAXY Network Platforms, which provide matrix routing, alignment, and processing for array components, can drive LEOPARD and 900-LFC loudspeakers. To guarantee optimum performance, use Meyer Sound’s MAPP™ system design tool to design systems with the 900-LFC.
LEOPARD and 900-LFC loudspeakers work with Meyer Sound’s RMS™ remote monitoring system, which provides comprehensive monitoring of system parameters from a Mac® or Windows®-based computer.
The 900-LFC is available with or without Meyer Sound’s QuickFly® rigging. When equipped with the optional MRK-900 rigging kit, the captive GuideALinks™ enable flying of the 900-LFC from the MG-LEOPARD/900 multipurpose grid in LEOPARD arrays without a transition frame. Also use the MG-LEOPARD/900 grid for groundstacks with uptilt or downtilt. Or fly 900-LFCs separately as a subwoofer array with variable splay angles of 0°, 1.25°, 2.5°, 3.75°, or 5°.
Transport both versions of the 900-LFC in stacks with the optional MCF-900 caster frame.
Features and Benefits
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- Compact cabinet with small footprint and extraordinary power-to-size ratio
- High peak power output with extremely low distortion
- Exceptional linearity, transient reproduction, and low-frequency clarity
- Self-powered for simplified setup and increased reliability
- Stackable and flyable in regular and cardioid arrays, with tilt and splay options
- Integral pole-mount receptacle easily pairs the subwoofer with ULTRA Series loudspeakers
Applications
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- Scalable low-frequency control (very long arrays possible) for touring applications or fixed installations of any size
- Clubs, theaters, houses of worship, corporate AV, and theme parks
- Low-frequency complement for LEO-M, LYON, and LEOPARD systems
Specifications
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ACOUSTICAL1 |
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Operating Frequency Range2 |
30 Hz – 125 Hz |
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Frequency Response3 |
32 Hz – 115 Hz ±4 dB |
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Phase Response |
40 Hz – 110 Hz ±30° |
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Linear Peak SPL4 |
133 dB with crest factor >10 dB (M-noise), 133 dB (Pink noise), 134.5 dB (B-noise) |
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COVERAGE |
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360° (single unit); varies with number of units and configurations |
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TRANSDUCERS |
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Low Frequency |
One 18-inch, dual-coil, long-excursion cone driver; 2Ω nominal impedance |
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AUDIO INPUT |
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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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Connectors5 |
XLR 5-pin female input with male loop output; XLR 3-pin female connectors available to accommodate only balanced audio (no RMS signals) |
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Input Impedance |
10 kΩ differential between pins 2 and 3 |
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Wiring |
Pin 1: Chassis/earth through 1 kΩ, 1000 pF, 15 V clamped network to provide virtual ground lift at audio frequencies Pin 2: Signal + Pin 3: Signal - Pin 4: RMS Pin 5: RMS Case: Earth ground and chassis |
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Nominal Input Sensitivity |
6.0 dBV (2.0 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 +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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AMPLIFIER |
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Type |
Two-channel, open-loop, class D |
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Total Output Power6 |
3100 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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Connectors |
powerCON 20 input with loop output |
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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 |
0.60 A rms (115 V AC), 0.49 A rms (230 V AC), 0.63 A rms (100 V AC) |
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Maximum Long-Term Continuous Current (>10 sec) |
4.9 A rms (115 V AC); 2.5 A rms (230 V AC); 5.2 A rms (100 V AC) |
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Burst Current (<1 sec)7 |
8.8 A rms (115 V AC), 4.7 A rms (230 V AC), 11.0 A rms (100 V AC) |
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Maximum Instantaneous Peak Current |
18.2 A peak (115 V AC), 9.2 A peak (230 V AC), 20.6 A peak (100 V AC) |
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Inrush Current |
< 20 A peak |
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RMS NETWORK |
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Equipped with two-conductor twisted-pair network, reporting all operating parameters of amplifiers to system operator’s host computer. |
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PHYSICAL |
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Dimensions without Rigging |
W: 27.43 in (697 mm) x H: 24.43 in (621 mm) x D: 24.89 in (632 mm) |
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Dimensions with Rigging |
W: 27.47 in (698 mm) x H: 24.43 in (621 mm) x D: 24.89 in (632 mm) |
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Weight without Rigging |
136 lb (61.7 kg) |
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Weight with Rigging |
159 lb (72.1 kg) |
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Enclosure |
Premium multi-ply birch with slightly textured black finish |
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Protective Grille |
Powder-coated, hex-stamped steel with acoustical black mesh |
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Rigging |
Optional end frames with captive GuideALinks secured with 0.3125 in x 0.63 in quick release pins that allow 0°, 1.25°, 2.5°, 3.75°, or 5° splay angles; detachable side handles. Rigging supports ground-stacked, flown, and cardioid configurations. |
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Pole Mount |
U.S. version: 1.5 in (38 mm) E.U. version: 1.375 in (35 mm and M20 thread at the bottom) |
