QC Unique Feature - Acoustic Measurement and Leakage Detection in One Step
The sound generation in loudspeaker systems requires the compression of air and generates high air pressure in the enclosure. If the enclosure is not well sealed, air at high velocity will be expelled at those leaks resulting in turbulences that produce characteristic air noise. In passive loudspeaker systems, those leaks usually occur at the dust cap, surround, or somewhere in the cabinet. In vented systems, the port itself generates turbulent noise which may mask the symptoms of leaks. Modern active loudspeaker systems use sealed enclosures combined with active filtering in order to extend the bandwidth to lower frequencies. This is however much more prone to air noise because the air pressure inside the enclosure is increased significantly and electronic components such as switches and connectors require careful sealing.

Traditional measurement techniques based on spectral analysis are not suitable because the power density is small and can easily be masked by microphone and ambient noise. But what is, if there were a special technique to exploits some properties of the modulated noise visible only in the time domain. Or if you have the opportunity to use a defined frequency band of the sine sweep to use to trigger air leak symptoms, and so air leak detection can be completed simultaneously with standard acoustic testing..

» Read more to learn how to optimal detect leaks like turbulence and characteristic air noise.

Typical Endurance Test Applications - Destructive Testing
Most devices undergo thorough testing within their specified limits, but it's important to also test their maximum capabilities. For example, the test level of a DUT can be increased every 5 minutes by 1 dB steps up to a maximum test level.

The test automatically stops if the device is damaged or exceeds individual power, current or temperature limits. The final 100 seconds of the test provide you with detailed information about the device's behaviour during this crucial phase. This allows you to reveal the root causes of a malfunction. Read more about one of the measurement examples of our KLIPPEL Endurance Test (KET).

» Discover more and explore the capabilities of KLIPPEL Endurance Test on your own with our complimentary example data.

We are excited to announce that KLIPPEL will be exhibiting at Integrated Systems Europe (ISE) 2025, the world’s largest AV systems integration show. ISE 2025 will feature numerous pre-show and at-show conferences, keynote speeches, off-site tech tours, and ample networking opportunities, adding significant value for both attendees and exhibitors.

Event Details:
📅 Dates: February 4^th to February 7^th, 2025
📍Location: Barcelona, Spain
📌 Booth: 7N640

We invite you to visit us at our booth to meet our engineers and experience our product demos first hand. Don’t miss this opportunity to network with us and explore the latest innovations. We look forward to seeing you there! .