900-LFC Loa sub active 18" Meyer Sound
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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. |