750-LFC Loa sub active 15" Meyer Sound
Tính năng nổi bật
Thích hợp lắp đặt âm thanh hội trường, phòng hòa nhạc, âm thanh sân khấu,âm thanh quán bar.
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ACOUSTICAL1 |
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Operating Frequency Range2 |
35 Hz – 125 Hz |
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Frequency Response3 |
37 Hz – 110 Hz ±4 dB |
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Phase Response |
43 Hz – 110 Hz ±30° |
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Linear Peak SPL4 |
130.5 dB with crest factor >9 dB (M-noise), 130.5 dB (pink noise), 132 dB (B-noise) |
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COVERAGE |
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360° (single unit); varies with number of units and configuration |
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TRANSDUCERS |
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Low Frequency |
One 15-inch, dual-coil, long-excursion cone driver; 2 Ω 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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Connectors |
XLR 3-pin female with male loop. Optional 5-pin connectors to accommodate both balanced audio and RMS signals |
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Input Impedance |
10 kΩ differential between pins 2 and 3 |
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Wiring5 |
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 |
2-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 Agency Rated Voltage Range |
100–240 V AC, 50–60 Hz |
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Turn-on and Turn-off points |
Turn-on: 90 V AC; Turn-off: none; internal fuse protection above 265 V AC |
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CURRENT DRAW |
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Idle |
0.39 A rms (115 V AC), 0.38 A rms (230 V AC), 0.42 A rms (100 V AC) |
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Maximum Long-Term Continuous |
5.3 A rms (115 V AC), 2.7 A rms (230 V AC), 6.2 A rms (100 V AC) |
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Burst (<1 sec)7 |
9.2 A rms (115 V AC), 4.4 A rms (230 V AC), 10.7 A rms (100 V AC) |
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Maximum Instantaneous Peak |
15.3 A peak (115 V AC), 7.8 A peak (230 V AC), 18 A peak (100 V AC) |
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Inrush Current |
< 20.0 A peak |
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RMS NETWORK (OPTIONAL) |
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Two-conductor, twisted-pair network, capable of reporting all operating parameters of amplifiers to system operator’s host computer. |