Test Bench: Wavecor TW030TU03 30mm Graphene-Coated Soft Dome Tweeter

This latest Wavecor soft dome tweeter is specifically intended for car audio applications. Like other models, the new 4Ω TW030TU03 includes a 30mm wide surround with a precision-coated graphene-reinforced cloth diaphragm optimized for high-frequency cutoff above 20kHz. The design also features internal chambers below the dome and surround edge, dual neodymium magnets vented into a damped rear chamber, copper-clad aluminum voice coil winding with a vented voice coil former, and flexible lead wires.

Being primarily known as a pro sound driver OEM, with a great reputation for both guitar speakers and PA drivers, it may come as a surprise that this Eminence driver, the SD28, is a 1” soft dome tweeter — a staple of the home and car audio businesses. I should note however, that while Eminence has a rather large catalog of pro audio transducers, the company also produces drivers for home and car audio companies. This article was originally published in Voice Coil, January 2019

The new Tang Band Speaker 25-2176S 1” dome tweeter features a 25 mm wide surround coated fabric diaphragm optimized for high-frequency cutoff above 20 kHz, a unique aluminum assembly that is both self-shielding and acts as a heatsink, a unique aluminum mounting ring for screw down mounting up to 0.5” mounting depth, ferrofluid voice coil cooling and resonance damping, plus gold-plated terminals. This article was originally published in Voice Coil, July 2016.