Voice Coil Focus: Acoustical Characteristics of Adhesive Joints and Cone Treatments

There seems to be a lack of consideration and understanding of the acoustical characteristics of the loudspeaker’s many glue joints. In this article for Voice Coil, Mike Klasco and Steve Tatarunis detail how the influence and use of glue joints and diaphragm treatments can be used as a design tool. The report also details some significant new material options and design and measurement tools available. This article was originally published in Voice Coil, July 2017.

For several years, Mike Klasco and Steve Tatarunis wrote a series of articles under the header Parts is Parts where they have explored loudspeaker drivers, how they work, and all the different parts and components. In this specific article, the two audio industry experts provide an excellent introduction to high frequency drivers, revisiting some key historical designs. This article was originally published in audioXpress, January 2013.

Audio test and measurement specialists Listen announced its biggest ever training event on the West Coast the week of Feb 4– 8 (Chinese New Year week) with 5 full days of training events. Two of the days are not SoundCheck specific, and the last one, focusing on smart speaker testing, is free! Listen also simplified pricing this year so that each day is the same cost and attendees can combine any number of days, with a discount for each additional day they take. In addition, support contract holders and multiple attendees from the same company receive additional discounts.

The application of acoustic resistance as a design element in the optimization of transducers and enclosures has been given short shrift in audio engineering. Controlling the acoustic resistance of the driver radiation is a quality factor that is overlooked in most loudspeaker predictive modeling software. This article explores applications of acoustic resistance for audio.

Worldwide shipments of headphones keep on growing year after year and are already one of the top consumer electronics categories. The problem is, with all the excitement, it seems that many companies are not actually doing proper marketing research. Both in mass-market oriented designs and those models targeting high-end users the market is also being flooded with “me too” products.

The September edition of Voice Coil is already available online and in print. Highlights include a Voice Coil Guide by Mike Klasco and Steve Tatarunis and Vance Dickason’s Test Bench on the 8NDL64 High-Power 8” Pro Sound Woofer from B&C Speakers.