Qsources is a highly specialized company, leading in smart noise and vibration excitation technology.

Qsources overview

Qsources Qohm is an extremely lightweight, high power dodecahedron sound source.

The measurement can be conducted very fast and accurately at high broadband output levels (122 dB Lw). Another advantage of using Qohm is that no subwoofers are needed and it offers the highest quality in material within the smallest dimensions and extremely lightweight. This means that the product can easily be taken on-site by only one single consultant.

Weight3.1 kg
Broadband high output122 dB Lw
The frequency range in third-octave bands50-16000 Hz
Diameter260 mm

Download Qsources Datasheet Qohm

Qsources Qohm2 is a Monopole omnidirectional sound source.

Qohm2 offers a solution to take measurements of room acoustics, reverberation and speech transfer measurements. This solution is perfect for assignments related to the sound quality of buildings such as concert halls, theatres etc. The product offers a lot of benefits compared to currently marketed speakers as its very small, lightweight and is highly accurate at a maximum sound power level of 108 dB.

Weight1.3 kg
Broadband high output108 dB Lw
The frequency range in third-octave bands50-16000 Hz

Download Qsources Datasheet Qohm2


Qsources Qohm72 is an extreme level omni-directional sound source.

Qohm72 features high sound pressure levels for large site testing or other airborne excitation applications such as road- and railway infrastructure and barrier testing.

Weight18.5 kg
Broadband high output140 dB Lw // 100 dB Lw
The frequency range in third-octave bands100 Hz to 16000 Hz // 20 Hz to 160000 Hz

Download datasheet Qohm72


Qsources Qref is a monopole sound power reference source.

Qref can be used as a sound reference suitable for identification of equivalent sound power of machinery on-site, Statistical Energy Analysis (SEA) type of measurements of rooms, halls and other acoustically coupled systems and other airborne excitation applications. Qref offers a unique solution to measure in non-ideal acoustic conditions. The shipment includes a dedicated Infra-Qsources QamR amplifier.

Weight0.8 kg
Broadband high output97 dB Lw
The frequency range in third-octave bands100-5000 Hz

Download Qsources Datasheet Qref


Qsources Qam is fully DSP Controlled sound power amplifier for noise and vibration measurements with a very high power/ weight ratio for maximum portability and a straightforward, easy to use button operation. It includes an internal white/pink noise signal generator.

Weight2.4 kg
Max. Power output1200 Watt
Frequency range20-40000Hz
Dimensions245 x 190 x 90 mm
Internal noise generator√ white + pink Noise
External signal√ max. 1 Volt pk-pk
Equalization function

Download Qsources Datasheet Qam


Qsources Qca is a compact measurement amplifier with high power + low weight.

Weight0.9 kg
Max. Power output250 Watt
Frequency range10-50000HZ +0/-3 dB
Dimensions240 x 105 x 55 mm

Download Qsources Datasheet Qref