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All items tagged with ferrite magnet (52)

Test Bench: The Wavecor SW275BD01 Home Audio Subwoofer

January 2, 2019 by Vance Dickason

Test Bench: The Wavecor SW275BD01 Home Audio Subwoofer

This month, I characterized the SW275BD01, a 10.75" high-end home audio subwoofer from OEM manufacturer Wavecor. This driver has a well-appointed feature set that includes a proprietary cast eight-spoke (four twin spokes) cast aluminum frame, a very stiff black mica/paper composite cone, further stiffened by a 4" convex black hard paper dust cap. Suspension is provided by a FEA optimized low-loss (high Qm) NBR surround plus dual 6” diameter black flat conex spiders (dampers). This article was originally published in Voice Coil, October 2018.

Voice Coil January 2019 is Here and Ready for Another Year!

December 28, 2018 by audioXpress Staff

Voice Coil January 2019 is Here and Ready for Another Year!

Voice Coil January 2019 is now available. This edition focuses on New Materials for Earphones and Headphones and also includes a valuable listing of Earphone and Headphone Manufacturers and a schedule of headphone-centric events for the year. In Acoustic Patents, James Croft looks at a new patent of a multilayer voice coil plate and flat speaker based on the same, while in this month's Test Bench Vance Dickason features a 1" compression driver from Radian Audio Engineering, and a 1" soft dome tweeter from Eminence. This is much more, now available in print and download.

Test Bench: B&C Speakers' 12FCX76 12” High-Performance Pro Sound Coaxial

December 26, 2018 by Vance Dickason

Test Bench: B&C Speakers' 12FCX76 12” High-Performance Pro Sound Coaxial

This edition of Test Bench characterizes the 12FCX76, 12” high-performance pro sound coaxial from B&C Speakers. This coaxial driver is similar to the 12FHX76, where the “H” designates that it uses a horn-loaded compression driver, while the “C” in the 12FCX76 stands for conical-loaded compression driver (the “F” is for ferrite). The 12FCX76 uses ferrite motors for both the woofer and the compression driver. In terms of features, the 12FCX76 woofer is built on a 12-spoke (six twin-leg spokes) cast aluminum frame with eight mounting holes. This article was originally published in Voice Coil, July 2014.

Test Bench: The Alpha-5-8 5" Midbass Driver from Eminence

October 31, 2018 by Vance Dickason

Test Bench: The Alpha-5-8 5" Midbass Driver from Eminence

For this test bench article, I characterized the New Eminence Alpha-5-8 5” line array/column array midbass driver. This a new 5” midwoofer from the American Standard Series, a 24-model transducer line of epoxy-acrylic finished stamped frame woofers and midranges. Applications for the Alpha 5-8 include use as a midrange in a multi-way speaker, as multiples in a line array, or as a compact column PA speaker. This article was originally published in Voice Coil, August 2018.

Test Bench: Tang Band W3-2088SOF Micro Home Audio Subwoofer

October 17, 2018 by Vance Dickason

Test Bench: Tang Band W3-2088SOF Micro Home Audio Subwoofer

This a Test Bench of Tang Band's W3-2088SOF, a high XMAX 3.5" home audio RBM Micro subwoofer. The W3-2088SOF is built on an injection-molded eight-spoke frame that supports an unusual rectangular housing. The really unusual feature is that the W3-2088SOF does not use a spider. Instead it gets its compliance from two surrounds like a dual spider configuration. The voice coil former is vented below the inside diaphragm and also vented between the two diaphragm. This article was originally published in Voice Coil, January 2014.

Test Bench: The 18HW1070 18” Pro Sound Woofer from FaitalPRO

October 10, 2018 by Vance Dickason

Test Bench: The 18HW1070 18” Pro Sound Woofer from FaitalPRO

In this Test Bench, Vance Dickason characterized a pro sound 18" ferrite woofer that quickly became one of FaitalPRO's best-sellers. This article was originally published in Voice Coil, January 2014 and it was missing from the online publications that we regularly post on the audioXpress.com website. As Vance Dickason noted at the time, the 18HW1070 is a carefully designed and crafted driver, with an impressive power handling capacity for PA applications.

Test Bench: Celestion CDX1-1742 1” Exit Pro Sound Compression Driver

July 31, 2018 by Vance Dickason

Test Bench: Celestion CDX1-1742 1” Exit Pro Sound Compression Driver

For this month's Test Bench, Vance Dickason characterizes the CDX1-1742 from legendary UK Pro Sound OEM manufacturer Celestion. This driver joins the CDX family of ferrite motor compression drivers, and is designed for use with 1” throat horns, featuring a FEA-optimized ferrite magnet motor structure, and a proprietary next-generation “Sound Castle” soft diaphragm clamping assembly that reduces diaphragm mechanical stress and distortion. For this Test Bench, Celestion supplied the H1-9040P horn, with a 90° × 40° coverage pattern. This article was originally published in Voice Coil, May 2018.

Test Bench: Wavecor WF259PA01 10-Inch PA Woofer

June 6, 2018 by Vance Dickason

Test Bench: Wavecor WF259PA01 10-Inch PA Woofer

This month, I characterized a a 10” PA woofer from Wavecor, model WF259PA01. This is an interesting driver since, until now, Wavecor has been known mainly for its high-end home hi-fi drivers. However, the company has decided to expand its coverage in the loudspeaker market and has introduced a well-designed 10” OEM pro sound PA woofer. The WF259PA01 is for now available only as an 8 Ω model, and uses a very stiff flat black coated curvilinear paper cone. This article was originally published in Voice Coil, February 2018.

Test Bench: Eton 4-512/C8/25 RP Bass-Midrange

April 28, 2018 by Vance Dickason

Test Bench: Eton 4-512/C8/25 RP Bass-Midrange

The driver for this month’s Test Bench explication came from a German OEM driver manufacturer and is from Eton’s home audio Orchestra line of drivers. I asked Eton to send a model from this line, the 4-512/C8/25 RP, mostly because of the unique cone. All of the cones in the Orchestra line are serrated paper cones, which is somewhat reminiscent of the orange sliced paper cones in the Scan-Speak Revelator line. This article was originally published in Voice Coil, December 2017.

Celestion Expands Ferrite Magnet CF Range with CF1230F and CF1540HD Cast Aluminum LF Drivers

April 11, 2018 by audioXpress Staff

Celestion Expands Ferrite Magnet CF Range with CF1230F and CF1540HD Cast Aluminum LF Drivers

At Prolight+Sound 2018 (April 10-13), Celestion announced two new additions to its CF range of high-quality cast-aluminum, ferrite-magnet drivers for demanding tour sound and fixed install applications. At the Frankfurt show Celestion introduced the 12-inch CF1230F and the 15-inch CF1540HD low frequency woofers, offering further options for manufacturers designing two or three way systems and extended bass response sound reinforcement solutions.

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