All items tagged with neodymium magnets (22)

Kemper Kone NEO Speakers Custom Made By Celestion

August 19, 2022 by Joao Martins

Kemper Kone NEO Speakers Custom Made By Celestion

Kemper announced availability of a new Kemper Kone NEO replacement speaker for its 12" guitar cabinets. This is the same speaker manufactured for the German company by Celestion and used in the Kemper Kabinets, now with a new lightweight neodymium magnet. Also available for a wider range of cabinet designs, these speakers were designed for guitar tone monitoring with a choice of 19 classic guitar speaker imprints activated by Kemper Profile PowerRacks and PowerHeads.

April 13, 2022 by Mike Klasco and Salvador Magdaleno-Adame

Next-Generation Rare-Earth-Free Magnets Are Coming

When a speaker development project is initiated, one of the first decisions is usually the magnet type — ferrite or neodymium — each one with its associated benefits, and problems. This article introduces the most promising alternative based on Iron Nitride (FeN), soon be available from Niron Magnetics, and offering the best characteristics of neo, without the supply chain drama, at a price point that rests somewhere between ferrite and neodymium. This article was originally published in Voice Coil, January 2022.

Voice Coil October 2021 Loudspeaker Magnetics Focus

September 27, 2021 by audioXpress Staff

Voice Coil October 2021 Loudspeaker Magnetics Focus

The October 2021 edition of Voice Coil discusses "The State of Loudspeaker Magnetics," with an annual overview of these critical industry components and materials for loudspeakers, complemented with an updated industry directory focused on Integrated Electronics. James Croft covers a patent awarded to Coastal Source for the variable waveguide speaker control, while Vance Dickason characterizes the powerful 15DS100 professional subwoofer from B&C Speakers, and Eighteen Sound's latest ND2T 1.4” neodymium compression driver. Now available in print, immediate online access or download.

Test Bench: BDNC’s BGF-46166-18-4-003 Glass-Composite Flat Diaphragm Woofer

September 15, 2021 by Vance Dickason

Test Bench: BDNC’s BGF-46166-18-4-003 Glass-Composite Flat Diaphragm Woofer

This article characterizes a cutting-edge product from BDNC, a patented “race track” shaped driver, and the first of its kind to use a glass diaphragm composite made up of two layers of “Schott AS87 Glass” with an internal layer of viscoelastomic damping material and aluminum alloy foil. The motor structure uses two neodymium bar magnets driving a two-layer race track-shaped voice coil wound with round copper wire on an aluminum former. This article was originally published in Voice Coil, June 2021.

Precision Devices Unveils Seismic Product Expansion with New 24-inch and 21-inch Sub Bass Woofers

June 18, 2021 by audioXpress Staff

Precision Devices Unveils Seismic Product Expansion with New 24-inch and 21-inch Sub Bass Woofers

British manufacturer of professional audio transducers Precision Devices announced the release of two large-sized sub bass drivers. The new PD.24603BR and PD.2155-1N were developed with the support of the latest Klippel KA3 measurement systems and further ongoing research into performance optimized magnetic assembly design, cone geometry and suspension technology. The result is defined by Precision Devices as a dynamic and powerful line-up of new flagship products.

Scan-Speak Unveils New Ellipticor D2404/552000 1" Dome Tweeter

December 21, 2020 by audioXpress Staff

Scan-Speak Unveils New Ellipticor D2404/552000 1" Dome Tweeter

Scan-Speak has saved some last minutes surprises to end the year of the company's 50th anniversary in full force. The Danish engineering team just unveiled a new Ellipticor driver, expanding the rapidly growing family with the new Ellipticor D2404/552000 dome tweeter. This latest addition offers an impressive set of specifications according to the released datasheet, and should strongly motivate many speaker designers targeting high-end designs.

Test Bench: The LT2 Ribbon Transducer and Waveguide from Radian Audio Engineering

November 12, 2020 by Vance Dickason

Test Bench: The LT2 Ribbon Transducer and Waveguide from Radian Audio Engineering

For this Test Bench, Vance Dickason characterized the LT2 Ribbon Transducer and corresponding waveguide from Radian Audio Engineering. This is effectively a smaller version of the LT6 ribbon transducer reviewed in the July 2020 issue of Voice Coil, but offering much more diverse possibilities, as Vance Dickason discovers. And as the compact LT2 shows, this was designed to be more of a hi-fi or home theater substitute for any high frequency driver. This article was originally published in Voice Coil, August 2020.

Celestion’s Innovative Axi2050 Axiperiodic Driver Now Available at Parts Express

August 25, 2020 by audioXpress Staff

Celestion’s Innovative Axi2050 Axiperiodic Driver Now Available at Parts Express

Celestion announced that their highly-anticipated Axi2050 Axiperiodic driver is now available for purchase at Parts Express. Performing the role of two speakers in one, the Axi2050 is a high power, high-output driver which reproduces a frequency range of 300Hz-20,000Hz without the need for a midband crossover. This Celestion innovation with a 2-inch exit throat and standard mounting delivers superior intelligibility and perceived audio performance.

Test Bench: Eminence’s Tour Grade NSW4018-8 18” Woofer

July 22, 2020 by Vance Dickason

Test Bench: Eminence’s Tour Grade NSW4018-8 18” Woofer

Vance Dickason characterizes a very high power handling 18" woofer from Eminence’s recently announced Tour Grade pro sound product line, the NSW4018-8. The Tour Grade family consists of two 18" options, including the ferrite magnet FSW4018-8, the neodymium magnet NSW4018-8, and the massive neodymium magnet 21” NSW6021-6, and was developed over two years to support the undisputed growth of professional audio. Applications for the new Eminence NSW4018-8 include use as a bass driver in multiway systems, or as a dedicated subwoofer in bass reflex designs. This article was originally published in Voice Coil, May 2020.

Test Bench: The Celestion CDX14-3040 Compression Driver

July 8, 2020 by Vance Dickason

Test Bench: The Celestion CDX14-3040 Compression Driver

The transducer Celestion sent for this Test Bench joins the extensive CDX line of neodymium motor compression drivers. Designed for use with 1.4” throat horns, the CDX14-3040 is driven by a 75 mm (3") diameter voice coil wound with edge-wound copper clad aluminum wire (CCAW) on a non-conducting former driving a single-piece titanium diaphragm and surround. Celestion also supplied its new 1.4” H14-7050 70°x50° constant directivity horn. This article was originally published in Voice Coil, April 2020.

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