Voice Coil

Voice Coil April 2018

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IN THIS ISSUE V O L U M E 3 1 , I S S U E 6 A P R I L 2 0 1 8 1 INDUSTRY NEWS & DEVELOPMENTS By Vance Dickason 6 DIRECTORY Microspeakers 2018 Key Vendors for Mobile Electronics By Mike Klasco and Nora Wong 10 SPOTLIGHT Headphone and Earbud Testing By David Mathew and JoeBegin 16 TEST BENCH The New Ellipticor Drivers from Scan-Speak By Vance Dickason 29 INDUSTRY WATCH By Vance Dickason By Vance Dickason Dayton Audio Releases two New Epique Line Woofers Dayton Audio, the OEM Driver division of Parts Express, has released two new woofers for its new Epique (pronounced Epic) product line. These drivers are intended to be Dayton's top-of-the-line no compromise transducers and have a very rich feature set. There are two models, the 5.25" E160CF-8 and the 8" E220CF-8 (see Photo 1). Both drivers feature FEA-optimized underhung motors utilizing neodymium ring magnets, a NBR suspension system, damped carbon fiber cones (one of my favorite timbres), and oversized 55 mm titanium formers. The cooling system includes venting of an under spider mounting shelf (an exposed former), a pole piece vent, as well as peripheral vents out the back of the motor. Both drivers also have open aluminum diecast frame that reduces power compression and minimizes reflections back into the cone. Distortion is minimized with a large aluminum shorting ring (Faraday shield). Both have substantial excursion capability with an Xmax of 4 mm for the E160CF-8 and 5 mm for the E220CF-8. The RMS-rated power handling is 100 W for the 5.25" version, and 150 W for the 8". For more information, visit www.daytonaudio.com. Photo 1: The 5.25" E160CF-8 and the 8" E220CF-8 are two woofers in Dayton Audio's new Epique product line. Industry News & Developments

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