All items tagged with neodymium (195)

Magnets and Smart Electronics for Speakers in Voice Coil September 2023

August 30, 2023 by audioXpress Staff

Magnets and Smart Electronics for Speakers in Voice Coil September 2023

This issue of Voice Coil is packed full of great knowledge for speaker professionals. The September 2023 issue features three Test Bench characterizations: the Fountek NeoCD2.0 Ribbon Tweeter, the SB Acoustics WO24TX-4 Satori midbass, and the SEAS L22ROY2 8" subwoofer. This issue also features our annual overview of Magnetic Materials for the Loudspeaker Industry. Peter Larsen (Loudsoft) concludes his FINE Circle tutorial with a passive crossover for his design. This issue of Voice Coil is now available in print, online, and in digital formats.

Røde Releases the PodMic USB with XLR and USB Outputs and Advanced Features

May 24, 2023 by Joao Martins

Røde Releases the PodMic USB with XLR and USB Outputs and Advanced Features

Following the unveiling of multiple new products during the NAB 2023 show in Las Vegas, NV - most of which directly targeting podcasting and online content creation - Røde has now launched the PodMic USB. Based on the original PodMic, which was quickly established as an extremely popular choice for podcasters and streamers, the new PodMic USB takes versatility to new heights, offering both XLR and USB connectivity and built-in DSP and processing features.

Test Bench: Faital Pro’s New HF1460 Pro Sound Compression Driver

January 12, 2023 by Vance Dickason

Test Bench: Faital Pro’s New HF1460 Pro Sound Compression Driver

This article is a detailed characterization of the HF1460 1.4" exit neodymium motor compression driver from Faital Pro, oriented toward pro audio applications. The Faital Pro HF1460 features a carbon fiber diaphragm, which Faital Pro has been researching for some time, even before the first TeXtreme products were available in the market. The horn supplied for use with the HF1460 was the LTH142, an injection-molded, elliptical tractrix flare horn, with a 60° x 50° coverage pattern. This article was originally published in Voice Coil, September 2022.

Test Bench: Celestion CDX1-1412 Compact 1" Pro Sound Compression Driver

September 15, 2022 by Vance Dickason

Test Bench: Celestion CDX1-1412 Compact 1" Pro Sound Compression Driver

The Celestion CDX1-1412 Compression Driver is a compact 1" unit intended for professional audio applications, a traditional segment for the UK-based OEM manufacturer. This compression driver features a FEA-optimized neodymium ring magnet motor structure, a nominal power handling of 35W, a 2kHz recommended crossover frequency (with a minimum 12dB/octave high-pass network), and 106dB sensitivity (1W/1m) measured with its own 1" H1-9050 90°x50° constant directivity horn. This article was originally published in Voice Coil, June 2022.

FaitalPRO 2FE24 Pro Sound 2.5" Full-Range

September 1, 2022 by Vance Dickason

FaitalPRO 2FE24 Pro Sound 2.5" Full-Range

The focus for this Test Bench is the 2FE24 2.5” full-range driver from FaitalPRO, an interesting small diameter full-range design suitable for pro audio applications such as PA line source speakers. The 2FE24 is built on a proprietary injection-molded polycarbonate four-spoke frame, and the cone assembly consists of an uncoated paper cone and dust cap, low loss half-roll NBR surround, and elevated cloth spider. Powering the cone assembly is a neodymium ring magnet and a milled return cup fitted to a 19mm diameter voice coil wound with aluminum wire on a Kapton former. This article was originally published in Voice Coil, May 2022.

Headphone Testing and Lots of Speaker Knowledge in Voice Coil June 2022

May 27, 2022 by audioXpress Staff

Headphone Testing and Lots of Speaker Knowledge in Voice Coil June 2022

Another great issue of Voice Coil magazine. Vance Dickason writes about the Multi-Tone Measurement Module (MTON) available for the Klippel KA3 Analyzer. Mike Klasco and Nora Wong (Menlo Scientific) compiled an updated Directory of Headphone Test & Measurement Equipment for 2022. We revisit a 2004 patent of a speaker using an "Internal Negative Stiffness Mechanism." And in Test Bench, Vance Dickason characterizes the latest Celestion CDX1-1412 1" Compression Driver and a new 3" dome midrange from Tang Band Speaker (TB Speaker).

Test Bench: The 10NW76 Pro Sound High SPL 10” Driver from B&C Speakers

March 2, 2022 by Vance Dickason

Test Bench: The 10NW76 Pro Sound High SPL 10” Driver from B&C Speakers

The driver on this Test Bench is from B&C Speakers and clearly designed for professional audio. The 10NW76 was designed for uses in line arrays, small two-way monitors, and as a subwoofer, or as a midbass driver in multiway systems. It uses a proprietary 12-spoke (six double spokes) cast-aluminum frame with a series of cooling vents that allow air to move past the voice coil and across the front side of the neodymium motor assembly. The cone assembly consists of a curvilinear waterproof coated paper cone and dust cap. This article was originally published in Voice Coil, December 2021.

Test Bench: The 15DS100 15” Pro Sound Subwoofer from B&C Speakers

December 8, 2021 by Vance Dickason

Test Bench: The 15DS100 15” Pro Sound Subwoofer from B&C Speakers

This Test Bench explication characterizes the 15DS100 15” professional subwoofer from B&C Speakers. This new transducer from the Italian company is a very high power handling design, able to deliver 3kW continuous (1.6W nominal), thanks to B&C's latest generation of very long voice coils - a great asset in applications from discreet PA subwoofers to three-way PA speakers. The B&C 15DS100-4 uses a proprietary 12-spoke cast aluminum frame with cooling vents for the neodymium FEA motor, which uses a 4” four-layer voice coil wound with round aluminum wire on a non-conducting glass fiber former. This article was originally published in Voice Coil, October 2021.

Precision Devices Introduces Next Generation PD.1845-1N Sub Bass Driver

November 23, 2021 by audioXpress Staff

Precision Devices Introduces Next Generation PD.1845-1N Sub Bass Driver

The latest development from Precision Devices International, following the seismic abilities of the 24-inch and 21-inch sub bass woofers launched earlier in June 2021, the new 18” PD.1845-1N introduces clear design refinements, resulting in an ergonomic, vented cast aluminum chassis that offers improved thermal control, also featuring an aluminum demodulation ring for ultra-low distortion. The 4.5" split winding copper clad aluminum voice coil and vented long-throw motor system leverages a voice coil gap for reduced power compression and an optimized double silicone suspension system for ultimate cone control.

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.

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