All items tagged with neodymium (194)

Test Bench: The Peerless by Tymphany PMT-40N25AL01-04 Mini Full-Range Driver

December 19, 2018 by Vance Dickason

Test Bench: The Peerless by Tymphany PMT-40N25AL01-04 Mini Full-Range Driver

The 1" diameter full-range drivers are among the most used transducers in consumer electronics. They are finding broad use in numerous Bluetooth speakers. The driver submitted by Tymphany for this Test Bench fits into that category. The Peerless by Tymphany PMT-40N25AL01-04 is a 25-mm (1”) diameter full-range driver built on a proprietary injection-molded two-piece polycarbonate (one piece for the motor assembly structure and one piece for the protective grill). This article was originally published in Voice Coil, July 2014.

One More Time for 2018! Your Voice Coil December Edition Now Available!

November 27, 2018 by audioXpress Staff

One More Time for 2018! Your Voice Coil December Edition Now Available!

In this last issue for 2018, we share with you what you need to know about the forthcoming CES 2019 show, Robert Werner tells us everything about the latest software release for the Klippel Analyzer System, and Mike Klasco discusses recycling neodymium magnets. James Croft revisits an Acoustic Passive Radiator Rocking Mode Reducing patent awarded to Bose, Vance Dickason puts a compression driver from Celestion and another from Radian on his Test Bench. This and much more, not to be missed in Voice Coil December 2018.

Test Bench: B&C Speakers DE780TN-8 Compression Driver

November 14, 2018 by Vance Dickason

Test Bench: B&C Speakers DE780TN-8 Compression Driver

For this test bench article, I characterized the DE780TN, a 1.4" exit titanium diaphragm pro sound compression driver from B&C Speakers. This compression driver is one of the latest additions to B&C Speakers’ extensive 17-model ferrite and neodymium motor 1.4" exit compression drivers. B&C Speakers supplied the ME90 horn for use with the DE780TN-8. This constant directivity horn has a 1.4" exit bolton type made from cast aluminum, and provides an 80° × 60° coverage pattern and a 900 Hz cut-off frequency. This article was originally published in Voice Coil, August 2018.

Feel the Pulse Of the Loudspeaker Industry with Voice Coil November 2018

October 26, 2018 by audioXpress Staff

Feel the Pulse Of the Loudspeaker Industry with Voice Coil November 2018

Celebrating its 32nd anniversary, Voice Coil carefully looks at future prospects, starting with an overview of the neodymium supply chain and its implications for the loudspeaker industry, while Test Bench characterizes two full-range neodymium drivers from Eastech’s Punktkilde compact line, typically used in smart speakers and soundbars. In acoustics patents, James Croft reviews the "Acoustic Filter for Omnidirectional Loudspeaker" patent recently awarded to Samsung Electronics. Download now!

Test Bench: Acustica Beyma TPL200/H Pro Sound Air Velocity Transformer

October 3, 2018 by Vance Dickason

Test Bench: Acustica Beyma TPL200/H Pro Sound Air Velocity Transformer

In this edition of Test Bench, Vance Dickason characterized a different high-frequency transducer: the TPL200/H, a horn-loaded pro sound AMT from the Valencia, Spain, company Acustica Beyma. The TPL200/H is one of the Air Motion Transformers (AMT, aka AVT Air Velocity Transformer) that Beyma has developed for pro sound applications and is a Kapton horn-loaded version of the highest power handling AMT in their AMT line, rated at 120 W AES (24 W program), with a sensitivity of 104 dB 1 W/1 m. This article was originally published in Voice Coil, July 2018.

Test Bench: The 951PB 1.4" Compression Driver from Radian Audio Engineering

September 26, 2018 by Vance Dickason

Test Bench: The 951PB 1.4" Compression Driver from Radian Audio Engineering

In this Test Bench, Vance Dickason looks at an interesting new high-frequency transducer: the 951PB, a 1.4” exit pro sound compression driver from Radian Audio Engineering, based in Orange, CA. The 951PB shares an almost identical feature set with the existing 950PB. Both have neodymium ring magnet motors, high temperature 101.6 mm (4”) diameter polyimide voice coil formers wound with copper-clad aluminum-edge wound ribbon wire voice coils. This article was originally published in Voice Coil, July 2018.

Test Bench: Radian Audio Engineering 950PB and 760NEOPB Compression Drivers

September 20, 2018 by Vance Dickason

Test Bench: Radian Audio Engineering 950PB and 760NEOPB Compression Drivers

This was the first time Test Bench featured a product from the highly respected Radian Audio Engineering. Radian sent the 950PB and the 760NEOPB, two of the company’s flagship compression drivers. The 950PB and the 760NEOPB share several features. They are both 2” exit compression drivers, with a useful response above 10 kHz. The 950PB and the 760NEOPB use neodymium motor structures and pure aluminum diaphragms with a proprietary mylar suspension that greatly reduces second- and third-order harmonic distortion. The two transducers mainly differ with regard to their voice coil diameters. This article was originally published in Voice Coil, November 2014.

Waterproof Micro Speakers with Compact Frame Sizes Carry IP67 Ratings

September 20, 2018 by audioXpress Staff

Waterproof Micro Speakers with Compact Frame Sizes Carry IP67 Ratings

CUI’s Audio Group from Tualatin, Oregon, announced the addition of several waterproof micro speaker models, with Ingress Protection (IP) ratings of IP67, to its CMS product family. Housed in compact packages measuring as small as 15 x 11 mm with profiles as low as 2.5 mm, these waterproof speakers are ideal for portable and handheld electronic devices subject to the moisture and environmental contaminants found in industrial and outdoor applications.

Dynaudio Completely Redesigned Confidence High-End Speaker Range Introduced at CEDIA 2018

September 7, 2018 by audioXpress Staff

Dynaudio Completely Redesigned Confidence High-End Speaker Range Introduced at CEDIA 2018

Following an earlier presentation to the market at the High End Show in Munich, Danish loudspeaker specialist Dynaudio is offering the North American market its first look at an update to the company's legendary Confidence hi-fi speaker range at CEDIA 2018, in San Diego. With this update, Dynaudio brings its most celebrated technologies — including soft-dome tweeters, Magnesium Silicate Polymer (MSP) cones, and Dynaudio Directivity Control (DDC) — to new heights with new materials, manufacturing techniques and designs.

Test Bench: B&C Speakers DE680TN 1.4" Exit Pro Sound Compression Driver

September 5, 2018 by Vance Dickason

Test Bench: B&C Speakers DE680TN 1.4" Exit Pro Sound Compression Driver

The transducer I examined in this Test Bench came from Italian OEM manufacturer B&C Speakers. The DE680TN-8 compression driver is the latest addition to B&C Speakers’ extensive ferrite and neodymium motor 1.4” exit compression drivers. In terms of features, the titanium diaphragm has been redesigned and incorporates a new bent-edge former along with a new dome and surrounds geometry. This article was originally published in Voice Coil, June 2018.

«
1
2
...
6
7
8
9
10
11
12
...
19
20
»