Omni-directional sound source
The highly uniform sound radiation from the Qohm source allows controlled excitation of the acoustics of small and large sites, such as classical theaters, factory halls, schools, offices, apartments and machinery rooms. Thanks to the omni-directionallity of the Qohm sound source, as specified in ISO 16283, only a few measurement locations are needed in each space for typical airborne isolation and reverberation testing. The extreme light weight of 3.1 kg. and small dimensions allow fast and efficient work by a single consultant. With the smooth broadband spectrum at 122 dB Lw the level is more than sufficient from 50 to 16000 Hz. A high output at 50 Hz, 97 db Lw, also means that a separate subwoofer is not needed for all common measurement situations.
260 MM. DIAMETER
COMPACT TRIPOD & SOFT CARRY CASE
1/3 OCTAVES: 50-16000 Hz.
BROADBAND HIGH OUTPUT: 122 dB Lw
HIGH OUTPUT AT 50Hz: 97 dB LW
EASY & FAST SET UP BY 1 SINGLE PERSON
EXCEEDING THE STANDARDS
ISO 140 / 3382 / 16283
The most powerful, lightweight sound source & amplifier for building acoustics: Qohm Qam
Qohm & Qam are used by engineers, consultants and researchers worldwide
The light weight makes it comfortable to change positions within a room and to travel from room to room, which consumes often a large time of a measurement campaign, since the measurements themselves only take a couple of minutes. The maximum power is overwhelmingly loud and sufficient for measurement of very well insulated partitions.”Dr. Ir. Pieter Schevenels, PS-Acoustics BVBA Belgium
Photo credits: Altia acoustique France – Akron Benelux – Guillaume Bourdin – University of Montpellier – Dr. Monika Rychtarikova – Dr. Voijtech Chmeliken – Dr. Daniel Urban – Faculty of Civil Engineering STU Bratislava