Key Loudspeaker Updates for the Industry in Voice Coil October 2022

In this edition of Voice Coil, Mike Klasco writes about Dr. Kurt Müller's 100-Year Anniversary, Mike Klasco and Nora Wong compiled an updated Integrated Electronics for Loudspeakers directory, and James Croft reviews an intriguing patent of a Vertically and Horizontally Balanced Subwoofer. For this issue's Test Bench, Vance Dickason focused his full attention on another innovative driver from Purifi Audio, this time the PTT5.25X04-NFA-01 5.25” Midbass Woofer.

As always, the Klippel engineering team continuously introduces the results of its latest R&D efforts and customer feedback to improve its solutions. Klippel has now released their second software update for the Klippel Analyzer System with various new features for both R&D and QC applications. The update is free of charge for all users running dB-Lab 212 or QC7. It introduces a utility Documentation Module (DOC) for use in dB-Lab, TEDS integration for microphones, and updates for the QC Stand-alone Software.

Klippel has been keeping busy in the last months, continuously improving their measurement technology for loudspeakers and audio systems. With the dB-Lab 210.918 and QC 6.7 software updates, Klippel introduced new tools for testing DSP-enhanced speakers, headphones and connected audio systems, first with and hardware add-on for the SCN Scanning Vibrometer, and second with an extension for automatic testing at multiple excitation levels using the TRF module.

The specialists in electro-acoustical transducers and audio systems test equipment at Klippel GmbH continue hard at work on updating their range of products, recently expanded with the Klippel Controlled Sound Technology (KCS) and adding on the existing features for the Klippel Analyzer System. Here is a summary of the main things that the company implemented recently, including updates to its dB-Lab software and the QC Software Framework.

K&K Development has released a new analyzer specifically designed for high-speed quality control. The new P750 QC and measurement system connects to a PC by USB and was designed as an economic solution for testing of loudspeakers in a production environment or lab environment. The Danish company says it is the right solution for micro speakers, headphones and handsets testing.