All items tagged with horn (39)

Development & Design: Experimental and Theoretical Investigation of an Unusually Shaped Horn

December 18, 2024 by Joerg Panzer and Patrick Macey

Development & Design: Experimental and Theoretical Investigation of an Unusually Shaped Horn

In another example of cutting-edge experiments that deserve recognition, Joerg Panzer (R&D TEAM, Germany) and Patrick Macey (PACSYS, UK) detail an investigation of the sound pressure response and radiation impedance of a loudspeaker horn driven by an electro-dynamic transducer. The two authors (and creators of the respective software tools) combined measurements with simulation software using finite and boundary element methods and explored the associated issues with meshing for each method.

Test Bench: B&C Speakers’ DE640-16 Compression Driver

December 18, 2024 by Vance Dickason

Test Bench: B&C Speakers’ DE640-16 Compression Driver

The B&C Speakers DE640-16 Compression Driver is a 1.4" exit design, which along with the recent DCM414 midrange and the DE360 models represent a line of two-point suspension ring radiator type compression diaphragms. The DE640-16 features a 65mm (2.6") Polymer diaphragm and neodymium ring magnet and is specified for a recommended crossover frequency around 1kHz, and a 140W continuous power rating. For this Test Bench, the DE640-16 was matched with the Eighteen Sound XT1464 elliptical flare horn.

Test Bench: B&C Speakers 1” DH450-8 Compression Driver

November 21, 2024 by Vance Dickason

Test Bench: B&C Speakers 1” DH450-8 Compression Driver

The DH450-8 ultra-compact compression driver from B&C Speakers incorporates a 1.7" high temperature Polymer diaphragm driven by a 44mm voice coil wound with aluminum wire on a high Qm Kapton former. Its most fascinating feature is the patent-pending phase plug with a deliberately twisted internal channel, which is intended to improve the overall frequency response. For this characterization, the DH450-8 1" neodymium driver is measured along with the B&C Speakers ME10v2 90x60 hyperbolic cosine flare horn, made from injection-molded ABS. This article was originally published in Voice Coil, August 2024

You Can DIY! The Live-Edge Dipoles

September 13, 2023 by Perry Marshall

You Can DIY! The Live-Edge Dipoles

For the speaker builders, Perry Marshall details everything there is to know about his beautiful Live-Edge Dipoles project. A design that was inspired by two slabs of birch the author brought home, allowing to finally bring to fruition his idea to build these dipoles. Marshall reveals all the specifics of the driver choices, radiation pattern, and crossovers, while explaining the effects of the obtained radiation pattern and how the speakers behave in practice. This article was originally published in audioXpress, January 2021.

Test Bench: Beyma CD-11Nd Compression Driver and TD-194 Horn

August 4, 2021 by Vance Dickason

Test Bench: Beyma CD-11Nd Compression Driver and TD-194 Horn

This Test Bench characterizes the CD-11Nd compression driver and TD-194 1" horn from pro sound OEM, Acustica Beyma. The CD-11Nd has a diameter voice coil wound both inside and outside of a non-conduction Kapton-type former with aluminum wire. The diaphragm and surround are composed of a single piece of PM4, which is a proprietary high-tech polymer that, according to the company, has never before been used for audio. This article was published in Voice Coil, April 2021.

Test Bench: Eighteen Sound ND1TP Compression Driver and XT120 Horn

July 20, 2021 by Vance Dickason

Test Bench: Eighteen Sound ND1TP Compression Driver and XT120 Horn

The product on this Test Bench is Eighteen Sound’s ND1TP Compression Driver and XT120 Horn. Already the result of the company's efforts in the aftermath of the Eighteen Sound (and Ciare) acquisition by B&C Speakers in 2018. The ultra-compact ND1TP compression driver has a 25mm (1") throat diameter driven by a 44mm (1.75") diameter edge-wound voice coil wound with copper-clad aluminum wire (CCAW) on a non-conducting Nomex former with a proprietary treatment. This article was published in Voice Coil, April 2021.

Full-Range Loudspeaker Industry Coverage in Voice Coil April 2021

March 26, 2021 by audioXpress Staff

Full-Range Loudspeaker Industry Coverage in Voice Coil April 2021

The April 2021 edition of Voice Coil is now available and combines a wide range of topics for loudspeaker industry professionals. Starting with "Practical Considerations for Quality Control Testing of Loudspeakers," to an overview of innovations in wires and connectors, and a directory of cable and connector vendors. And, Vance Dickason looks at two compression drivers matched with factory-supplied horns - the ND1TP from Eighteen Sound and the CD-11Nd from Acustica Beyma. Now available in print and digital.

B&C Speakers Introduces Its Largest Horn to Extract Maximum Potential From New DCX Coaxial HF Driver Family

October 15, 2020 by Joao Martins

B&C Speakers Introduces Its Largest Horn to Extract Maximum Potential From New DCX Coaxial HF Driver Family

In the wake of innovation breakthroughs made possible by wide-bandwidth ring radiator drivers, B&C Speakers has now released the ME464 1.4-inch horn built especially to extract the full potential of the DCX family of coaxial drivers. The largest horn so far introduced by the Italian company and commercially available, the ME464 horn offers 70° x 55° nominal coverage with constant directivity and excellent loading down to 300 Hz. The development follows the introduction of the B&C DCM414 midrange compression driver, building on the DNA of the DCX464 HF coaxial design.

Test Bench: LaVoce DF10.172K 1” Compression Driver

March 25, 2020 by Vance Dickason

Test Bench: LaVoce DF10.172K 1” Compression Driver

Vance Dickason welcomes a new company that, for the first time, submitted products for characterization. The DF10.172K is a new 1" compression driver from LaVoce, an Italian company founded in 2008 by Elettromedia, with its R&D center located in Potenza Picena, Italy, and manufacturing based in Jiashan, China (near Shanghai), its own purpose-built ISO 9001-certified production facility. LaVoce submitted the 1” DF10.172K compression driver combined with its own HD1003 cast aluminum 90°×40° exponential horn. This article was originally published in Voice Coil, January 2020.

Capture All the Excitement of Audio with audioXpress February 2020!

January 10, 2020 by audioXpress Staff

Capture All the Excitement of Audio with audioXpress February 2020!

The February 2020 edition of audioXpress features a Market Update on Microphones, addressing the latest technology and application trends in this expanding product segment, including an article explaining how Nureva created a groundbreaking approach to gain control that cuts conference call annoyance. And Richard Honeycutt explains how to choose and position Choir Microphones, while Michael Steffes discusses interfacing measurement mics to Delta-Sigma ADCs. Get the new edition now!

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