Test Bench: Faital Pro's 10PR330 10" PA Woofer

The 10PR330 is Faital Pro's new high-power handling 10" woofer intended for line arrays and large PA systems, or as a midbass driver in multiway systems — and apparently it has also been also used successfully in bass guitar applications. The cone assembly for the Faital Pro 10PR330 woofer consists of a curvilinear paper cone along with a very stiff coated dust cap. Compliance is supplied by a coated polycotton cloth M-roll type surround and from a cloth-type flat spider.

The driver characterized in this Test Bench is a new 8.25" paper cone woofer, which is only the second pro audio design from the Wavecor, renowned for its high-end home hi-fi drivers. The company decided to expand its catalog with new OEM pro audio woofers, and the WF211PA01 is basically a smaller version of the WF259PA01 10" woofer explicated in the February 2024 issue of Voice Coil. This article was originally published in Voice Coil, June 2024.

Before computers were broadly available for loudspeaker bass reflex box simulations, engineers relied on "Alignments" for their designs - typically named after equivalent filter functions that the high-pass response of the box was aligned after — for example, Butterworth (B4) and Bessel (BL4) — to name a few. In this article, Claus Futtrup now focuses on the Linkwitz-Riley (LR4) Bass Reflex Alignment.

This article explains how multiphysics modeling and simulation can be used to analyze electroacoustic transducers. Using a balanced armature transducer as example, the analysis combines the electromagnetic field with structural vibrations and acoustic radiation using multiphysics coupling features. A moving mesh is also used to model the back Electromotive Force (EMF).

MEMS microspeakers are a completely new class of product with its unique challenges. MEMS drivers are now commercially available and seeing fast evolution and adoption in true wireless stereo (TWS) earbuds and in-ear monitors (IEM). With the emergence of these small form-factor transducers comes the need to address how to measure its performance and ensure product quality, even before its integration in finished products.

As computational demands can be very high when doing simulations involving coupled physics - such as is often the case for vibroacoustical transducers - this article looks at how to reduce the computational demands and associated cost utilizing symmetry schemes and dimensional reductions techniques, and the potential associated issues. This article was originally published in audioXpress, June 2024.

In the June 2024 issue of Voice Coil, Claus Futtrup explores the Linkwitz-Riley (LR4) Bass Reflex Alignment, in Acoustic Patents, James Croft revisits an important invention from Bang & Olufsen, which has been granted the respective patent, and Vance Dickason characterizes the new Wavecor WF211PA01 8.25" woofer and the Faital Pro 10PR330 10" woofer, both suitable for PA systems and professional applications. Finally, there's an updated industry directory of Headphone Test & Measurement Equipment.

audioXpress June 2024 puts automotive audio development into perspective. Starting with how AI and SDV are impacting the industry, an analysis of Integrated Audio Development Frameworks, how sound defines the driving experience of Electric Vehicles, and lessons learned from aftermarket car audio. Learn how to measure MEMS microspeakers, enjoy two great multiphysics simulation articles by Jinlan Huang and René Christensen, and much more.