5. Technical specification*
Frequency range:
47-16000 Hz
Omni-directionality:
+-1 dB from 50-1600 Hz
+-3 dB from 1600-2500 Hz
Sound power level:
123 dB SPL, 2 minutes**
116 dB SPL, 15 minutes**
Output level stability:
better than 0.5 dB,
10 minutes at 116 dB**
better than 0.5 dB,
1.5 minutes at 122 dB**
Mounting thread:
UNC 3/8-16
Dimension, weight:
27 cm diameter (+- 0,5 cm), 3.15 Kg (+-0,1 Kg)
Power requirement:
800 Watt RMS to 4 Ohm***
*These specifications may be adapted if necessary to improve the quality of the product.
**When driven with Qam generated low crest-factor pink noise at 22 Celsius ambient temperature or lower.
*** For maximum performance a dedicated power amplifier type Qam is available from Infra-Qsources.
The source output spectrum for white and pink noise in free field condition are shown below.
1/12 octave band spectra, white noise, pink noise
octave band and 1/3 octave spectra white,pink noise
The sliding 30 degrees averaged directionality is given in the graphs below for 1/3 octave and
octave bands.
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