Visit LivEnviro Website 
Qref Lightweight Sound Power Reference Source
Features & Benefits
- Weighs just 1.1 kg
- 50Hz – 8kHz (1/3rd Octaves) Frequency Range
- Axial directionality ± 1 dB and tangential directionality ± 5dB
- 88 ± 1 dB Lw for 2 minutes (output level stability better than ISO 6926)
Find Out more
-
View full product specification
Download PDF -
Enquire about Purchase
Purchase Enquiry
Product Details
Qref is a unique sound source for regular verification of rooms for product/machinery testing such as anechoic chambers and reverberation rooms. Another main application for this product is sound power evaluation of machinery or larger installations in-situ because of its small size, low weight and built-in signal control.