All items tagged with Vance Dickason (280)

Voice Coil Test Bench: Wavecor's WF182BD13-04 7" Midbass Driver

November 15, 2023 by Vance Dickason

Voice Coil Test Bench: Wavecor's WF182BD13-04 7" Midbass Driver

The Wavecor WF182BD13 is a midbass driver that utilizes a unique proprietary cone material made with interwoven Kevlar/Carbon fibers with beneficial properties for midrange reproduction - a combination of low mass, rigidness, and damping. Unique features include a vented inverted dome-type phase plug (no dust cap), a shallow profile low loss high Qm NBR surround, accompanied by a flat 4” diameter black cloth spider.

Voice Coil Test Bench: The 10NMFS 10” Subwoofer from Beyma’s Near and Mid Field (NMF) Line

November 8, 2023 by Vance Dickason

Voice Coil Test Bench: The 10NMFS 10” Subwoofer from Beyma’s Near and Mid Field (NMF) Line

Beyma's Near and Mid Field (NMF) line includes this compact woofer aimed at the studio/home audio market, one of three models with a similar feature set that includes carbon fiber cones and dust caps, Malt Cross cooling technology, triple aluminum, and copper shorting rings, dual Bimax spiders, and Quattro inside/outside voice coil windings. This article was originally published in Voice Coil, August 2023.

Vance Dickason's Loudspeaker Design Cookbook Celebrates 46 Years in Print with Expanded 8th Edition!

October 20, 2023 by Vance Dickason

Vance Dickason's Loudspeaker Design Cookbook Celebrates 46 Years in Print with Expanded 8th Edition!

More than 150,000 copies in print and acclaimed as the loudspeaker engineering "bible," Vance Dickason's Loudspeaker Design Cookbook celebrates 46 Years with an expanded 8th Edition. Vance Dickason explains what is new in this much expanded edition, published in color for the first time, and available softbound or hardbound.

Test Bench: Fountek Electronics' NeoPro 5i 5" Diaphragm Ribbon Tweeter

October 3, 2023 by Vance Dickason

Test Bench: Fountek Electronics' NeoPro 5i 5" Diaphragm Ribbon Tweeter

This Test Bench article characterizes a ribbon tweeter from Fountek Electronics. This company from Shanghai, with manufacturing operations located in Hefei (Anhui Province), sent its NeoPro 5i high-end ribbon tweeter, which combines a large 145mm × 15mm reinforced sandwich ribbon diaphragm with a closed-back injection-molded rear cavity, two aluminum heatsinks and a built-in transformer. This article was originally published in Voice Coil, July 2023.

The Latest in Loudspeaker Knowledge and Developments in Voice Coil October 2023

September 29, 2023 by audioXpress Staff

The Latest in Loudspeaker Knowledge and Developments in Voice Coil October 2023

In the October 2023 issue of Voice Coil, James Croft reviews an active noise control enclosure system, and Mike Klasco and Nora Wong provide an updated directory of Integrated Electronics for Loudspeakers. Vance Dickason offers three different driver characterizations, starting with the AMT100H driver from Eighteen Sound. Next up, he tests an updated version of the popular TW030WA23/24 tweeter from Wavecor. And finally, measures the Scan-Speak D2008/2010, the revised version of the classic dome tweeter from the Danish brand.

Test Bench: The SB29SDNC-C000-4 29mm Compact Neo Cloth Dome Tweeter from SB Acoustics

September 20, 2023 by Vance Dickason

Test Bench: The SB29SDNC-C000-4 29mm Compact Neo Cloth Dome Tweeter from SB Acoustics

This Test Bench characterizes the SB29SDNC-C000-4 29mm cloth dome tweeter from SB Acoustics, a shielded neodymium motor driver with a compact 72mm diameter injection-molded face plate and large surround, featuring a copper cap shorting ring on the pole piece, internal pressure equalization, and a flow resistor for non-resonance cavity coupling. Another characterization of the innovative tweeter designs launched by Sinar Baja, developed by Ulrik Schmidt and Frank Nielsen at Danesian Audio.

Test Bench: The TW29BNWG Beryllium Dome and Waveguide from SB Acoustics

September 13, 2023 by Vance Dickason

Test Bench: The TW29BNWG Beryllium Dome and Waveguide from SB Acoustics

The SB Acoustics TW29BNWG is a great evolution of the Satori TW29BN tweeter. The new high-end 29mm beryllium diaphragm neodymium dome, this Satori driver incorporates a 170mm (6.7") diameter aluminum waveguide, an 8mm wide coated cloth surround, a 29mm (1.14") beryllium diaphragm, dual copper caps on the T-shaped pole piece, dual balanced compression chambers, non-reflective optimally damped rear cavity, and CCAW round voice coil wire. This article was originally published in Voice Coil, June 2023.

Test Bench: B&C Speakers DCX354 High-Powered Coaxial Compression Driver and Horn

August 2, 2023 by Vance Dickason

Test Bench: B&C Speakers DCX354 High-Powered Coaxial Compression Driver and Horn

The B&C Speakers DCX354 ring radiator coaxial dual-diaphragm compression driver is a similar design to its big brother, the B&C Speakers DCX464 that was featured in the October 2019 issue of Voice Coil. The DCX354 has a 3" midrange diaphragm and a 2" and is good down to 400Hz. The horn tested with the DCX354-16 was the new B&C ME464, a very large horn device made of durable polyurethane plastic with an 80°×60° nominal coverage pattern. This article was originally published in Voice Coil, May 2023.

Test Bench: SB Audience 44CDN-PK 1" PEEK Diaphragm Compression Driver

July 26, 2023 by Vance Dickason

Test Bench: SB Audience 44CDN-PK 1" PEEK Diaphragm Compression Driver

The SB Audience Rosso 44CDN-PK is combined with the H250 90°×60° exponential horn. The driver features a 44.3mm (1.75") diameter voice coil driving a single piece PEEK diaphragm and surround, and including a FEA-optimized neodymium ring magnet motor structure, annular phase plug design, and a cast-aluminum damped rear chamber. This driver has a 60W AES power handling rating (120W maximum), with a 1.8kHz recommended crossover frequency.

Test Bench: Wavecor’s TW045WA01 Coaxial Cloth Dome/Ceramic Cone Tweeter

June 21, 2023 by Vance Dickason

Test Bench: Wavecor’s TW045WA01 Coaxial Cloth Dome/Ceramic Cone Tweeter

This Test Bench characterizes the innovative TW045WA01 dual-diaphragm coaxial tweeter from Wavecor. This driver's dual-diaphragm assembly combines a 22mm coated textile dome for high-frequency extension and a 45mm ceramic/aluminum cone, which adds low-frequency output and efficiency. The hybrid design incorporates a dual neodymium magnet motor structure and sculpted foam damping ring attached to the faceplate. A very unique driver that is certain to appear in new two-channel high-end audio loudspeakers.

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