The NTi Audio δ-Clapper is a portable mechanical impulse source for accurate reverberation time and sound insulation measurements. It produces a clean, bounce-free impulse over 128 dB SPL and is ideal for use from 100 Hz upward. Designed for ease of use, it includes a carrying bag and hearing protection.
The NTi Audio δ-Clapper is a robust and easy-to-use mechanical impulse source designed for accurate reverberation time measurements in room and building acoustics. It delivers a clean, bounce-free, wide-spectrum impulse that is ideal for testing in spaces from 100 Hz upward. The carefully engineered design includes an air-brake mechanism and tuned plywood structure to ensure consistent and repeatable results with minimal effort from the operator.
With a peak sound pressure level exceeding 128 dB at 1 metre, the δ-Clapper provides sufficient output for effective RT60 and sound insulation measurements. It is housed in an oiled wood surface enclosure and comes complete with a carrying bag, δ-Clapper unit, and EP1 hearing protector. Its portable design and straightforward operation make it a practical solution for acoustic professionals working on-site or in the field.
$2,575 Inc GST
