APPENDIX B
ACOUSTICAL
Note: The
Operating frequency range | 28 Hz - 160 Hz | |
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| Note: Recommended maximum operating frequency range. Response depends upon | |
| loading conditions and room acoustics. | |
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Frequency response | 30 Hz - 140 Hz ±4 dB | |
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| Note: Free field, measured with 1/3 octave frequency resolution at 4 meters. | |
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Phase response | 40 Hz to 100 Hz ±45° | |
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Maximum peak SPL | 138 dB | |
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| Note: Measured with music at 1 meter. | |
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Dynamic range | >110 dB | |
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Horizontal coverage | 360° |
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Vertical coverage | Varies, depending on array length and configuration. | |
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TRANSDUCERS |
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Low frequency | Two 15" cone drivers with neodymium magnets | |
| Nominal impedance: 4 Ω | |
| Voice coil size: 4" | |
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| Note: Power handling is measured under AES standard conditions: transducer driven | |
| continuously for two hours with band limited noise signal having a 6 dB | |
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AUDIO INPUT |
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Type | Differential, electronically balanced | |
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Max. common mode range | ±15 V DC, clamped to earth for voltage transient protection | |
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Connectors | Female XLR input with male XLR loop output or VEAM | |
| audio and network) | |
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Input impedance | 10 kΩ differential between pins 2 and 3 | |
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Wiring | Pin 1: Chassis/earth through a 220 kΩ, 1000 pF, 15 V clamp network to provide virtual | |
| ground lift at audio frequencies | |
| Pin 2: Signal + | |
| Pin 3: Signal - | |
| Case: Earth ground and chassis | |
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DC Blocking | None on input; DC blocked through signal processing | |
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CMRR | >50 dB, typically 80 dB (50 Hz – 500 Hz) | |
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RF filter | Common mode: 425 kHz; Differential mode: 142 kHz | |
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TIM filter | <80 kHz, integral to signal processing | |
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Nominal input sensitivity | 0 dB V (1 V rms, 1.4 pk) continuous is typically the onset of limiting for pink noise and | |
| music. | |
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