INFRA-QSOURCES Qohm30
Omni-directional mid frequency sound source
Developed to exceed all standard requirements in accuracy and with extreme high levels for any application. Focussing on better high frequency measurements, the multiple driver technology allowes much higher high frequency levels and better directionality, and without a sacrifice in low frequency performance. Using the same high-tech 4 inch driver technology as the Qohm sources to controle weight, this larger source is still lighter then any dodecahedron in the industry.
Features:
- High accuracy omni-directional source, well beyond the ISO standard requirements
- Efficient field work due to the lightweight construction
- More then enough level for critical isolation testing and or large site applications, 130 dB Lw.
- Smooth frequency response up to 16000 Hz.
Specifications*:
Application frequency range: 50-16000 Hz
Omni-directionality: +-1 dB, up to 2800 Hz/ +- 3 dB up to 5600 Hz
(far better then the ISO3382 and ISO140 requirements)
Maximum sound power level: 130 dB Lw during 2 minutes, 125 dB Lw during 15 minutes**
Source weight: 8.5 kg
Dimension: 35.5 cm diameter
Power requirement: 2* 500 Watt RMS**
*These specifications may be adapted if necessary to improve the quality of the product.
**When excited with low crest-factor pink noise between 90 and 5600 Hz during two minutes.
*** See also the light weight measurement power amplifier Qam and QamS
Applications:
- Airborne sound isolation, reverberation and absorption measurements
- Buildings, industry, power-, road- and railway- large infrastructure testing
- Reference sound power testing
- Road and other sound barrier performance testing
- Reverberation, and room acoustics testing
- Isolation and absorption testing on building elements - General airborne excitation