Test Bench: Tymphany GBS-135F25AL02-04 5.25-Inch Woofer

The driver I received for testing in this edition of Test Bench came from Tymphany, and is a patent-pending thin profile 5.25” aluminum cone mid-woofer from the company’s GBS line of thin profile woofers and midranges. Features for the GBS-135F25AL02-04 include a four-spoke stamped steel frame with a mere 27.4 mm (1.08”) total depth. The depth is significant as the motor assembly is obviously housed inside the frame. This article was originally published in Voice Coil, September 2016.