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ACOUSTICAL1
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Operating Frequency Range2
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55 Hz - 20 kHz
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Frequency Response3
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66 Hz - 18 kHz ±4 dB
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Phase Response
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750 Hz - 18 kHz ±45°
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Linear Peak SPL4
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125 dB with 18 dB crest factor (M-noise), 122.5 dB (Pink noise), 125 dB (B-noise)
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COVERAGE5
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80° x 50° (rotatable horn)
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TRANSDUCERS
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Low Frequency
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One 10-inch cone driver with neodymium magnet; 4 Ω nominal impedance
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High Frequency
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One 3-inch diaphragm compression driver; 16 Ω nominal impedance
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AUDIO INPUT
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Type
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Differential, electronically balanced
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Maximum Common Mode Range
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±15 V DC, clamped to earth for voltage transient protection
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Connectors6
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XLR 3-pin female input with male loop output; optional 5-pin XLR connectors accommodate both balanced audio and RMS signals
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Input Impedance
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10 k& OMEGA; differential between pins 2 and 3
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Wiring
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Pin 1: Chassis/earth through 220 kΩ, 1000 pF, 15 V clamp network to provide virtual ground lift at audio frequencies
Pin 2: Signal +
Pin 3: Signal - (optional polarity reversal switch)7
Case: Earth ground and chassis
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Nominal Input Sensitivity
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0 dBV (1.0 V rms) continuous is typically the onset of limiting for noise and music
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Input Level
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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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AMPLIFIER
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Type
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Two-channel complementary MOSFET output stages (class AB/bridged)
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Total Output Power7
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550 W peak
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THD, IM, TIM
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< 0.02%
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Cooling
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Forced air cooling over amplifier heat sink
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AC POWER
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Connector
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powerCON 20 input with loop output
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Automatic Voltage Selection
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90–264 V AC
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Safety Rated Voltage Range
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100–240 V AC, 50–60 Hz
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Turn-on and Turn-off Points8
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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
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0.41 A rms (115 V AC); 0.33 A rms (230 V AC); 0.42 A rms (100 V AC)
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Maximum Long-Term Continuous Current (>10 sec)
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3.2 A rms (115 V AC); 1.6 A rms (230 V AC); 3.7 A rms (100 V AC)
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Burst Current (<1 sec)
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5 A rms (115 V AC); 2.5 A rms (230 V AC); 5.8 A rms (100 V AC)
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Maximum Instantaneous Peak Current
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17 A pk (115 V AC); 8.5 A pk (230 V AC); 20 A pk (100 V AC)
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Inrush Current
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15 A pk (115 V AC); 13 A pk (230 V AC); 15 A pk (100 V AC)
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RMS NETWORK (OPTIONAL)
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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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