All items tagged with Kapton (9)

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: 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.

August 20, 2019 by Vance Dickason

Test Bench: Bianco 44CD-K Compression Driver from SB Audience, a New Brand from SB Acoustics

This Test Bench characterizes the Bianco 44CD-K from SB Audience, a new brand from SB Acoustics. The FEA-optimized ferrite compression driver arrived with its H-250 90° × 90° exponential horn. The SB Audience 44CD-K features a 44 mm (1.75”) diameter voice coil wound with round copper wire on a high-temperature Kapton non-conducting former, driving a single piece Kapton diaphragm and surround. This article was originally published in Voice Coil, May 2019.

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: Volt RV3143 Studio Monitor Woofer

May 8, 2018 by Vance Dickason

Test Bench: Volt RV3143 Studio Monitor Woofer

The driver for this month’s Test Bench explication comes from the UK. Volt sent the 12” RV3143 Studio Monitor woofer, which is probably the most uniquely designed woofer to come across my desk in a while — there is no frame on the back side of the driver! The Volt Radial Technology consists of a front-mounted eight-spoke proprietary cast aluminum frame that is mechanically coupled to both the back plate and to the top of the pole structure/phase plug, in contrast to a normal rear frame that is only coupled to the motor front plate. This article was originally published in Voice Coil, December 2017.

Test Bench: RCF ND950 Neodymium Compression Driver and HF950 Horn

March 23, 2016 by Vance Dickason

Test Bench: RCF ND950 Neodymium Compression Driver and HF950 Horn

In this Test Bench, Vance Dickason characterizes for the first time a transducer from RCF. In this case, a combination of the ND950 1.4 neodymium compression driver along with the HF950 injection-molded composite horn specifically designed to work with the ND950. This article was originally published in Voice Coil, April 2013.

Test Bench: Beston Technology RT002A Ribbon Tweeter

March 16, 2016 by Vance Dickason

Test Bench: Beston Technology RT002A Ribbon Tweeter

This Test Bench is dedicated to the Beston RT002A ribbon tweeter. Beston Technology was founded in 2002 in Taipei, Taiwan. Since its inception, Beston has focused on high-frequency ribbon devices using a Kapton substrate. The first transducer Beston sent to Voice Coil’s Test Bench column was the RT002a ribbon tweeter. This article was originally published in Voice Coil, April 2013.

Test Bench - Faital Pro’s HF108/HF108R compression drivers coupled with LTH102 60° × 50° horn

March 2, 2016 by Vance Dickason

Test Bench - Faital Pro’s HF108/HF108R compression drivers coupled with LTH102 60° × 50° horn

In this Test Bench, Vance Dickason looks in depth at Faital Pro’s HF108/HF108R compression drivers coupled with Faital Pro’s LTH102 60° × 50° horn. The HF108/HF108R are the latest in Faital Pro’s series of Keytone Polymer diaphragm 1” compression driver series. This article was originally published in Voice Coil, April 2015.

Test Bench - PRV Audio Brazil 6MR500-NDY-4 Pro Sound Driver

February 6, 2016 by Vance Dickason

Test Bench - PRV Audio Brazil 6MR500-NDY-4 Pro Sound Driver

On its first Test Bench of a product designed and manufactured by PRV Audio Brazil, Vance Dickason characterized the 6MR500-NDY-4, a new 6.5” from the brand’s Midrange Series for professional audio applications. This article was originally published in Voice Coil, February 2015.