OmniPower Omnidirectional Sound Source Type 4292 (see Fig. 1) uses a cluster of 12 loudspeakers in a dodecahedral configuration that radiates sound evenly with a spherical distribution. All 12 speakers are connected in a series-parallel network to ensure both in-phase operation and an impedance that matches the power amplifier. The entire assembly weighs less than 14 kg and is fitted with a convenient lifting handle that does not measurably interfere with the sound field.
When connected via Bridging Cable AQ-0667, OmniPower Type 4292 can utilise the combined output power of both channels of Power Amplifier Type 2716 and deliver a maximum sound power of 122 dB re 1 pW (100 – 3150 Hz). The high power output of the OmniPower Sound Source makes it ideal for sound insulation measurements.
Type 4292 satisfies the requirements of DIN 52210, ISO 140 and ISO 3382 standards (see Fig. 2 through Fig. 5). Type 4292 directional response for the horizontal plane is shown in Fig. 6.
For a full Description and Specifications, see Product Data
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