Test Bench - SB Acoustics SB65WBAC25-4 2.5” full-range driver

Unquestionably, the 2” to 2.5” diameter full-range drivers are one of the most used transducers in consumer electronics. They are finding broad use in soundbars, and desktop speakers). Indonesian-based SB Acoustics sent its entry into this crowded field of play, the new SB65WBAC25-4.

Its no wonder these speakers look familiar. Bose Panaray 802 and Panaray 402 sound-reinforcement loudspeakers have been used for so long that even those Asian companies producing knockoffs have already introduced multiple generations of “improved” iterations (!). Now Bose decided it was time for “Series IV” models with updates to facilitate simple and versatile mounting.

In this tutorial Charlie Hughes addresses the question of “How do I align a subwoofer with a full-range loudspeaker system?”. He answers the problem by addressing the three main issues of crossover frequencies, relative output level and delay. This article was originally published in Voice Coil November 2011.

Primax Acquires 70% Share of Tymphany Primax Electronics, based in Taiwan and founded in 1984, will acquire a 70% share in Tymphany. Hong Kong, China-based Tymphany is an ODM and OEM speaker supplier for home, car, and pro audio brands. …