All items tagged with neodymium (194)

Test Bench: Eminence N151M-8 1” Compression Driver

December 20, 2017 by audioXpress Staff

Test Bench: Eminence N151M-8 1” Compression Driver

For this Test Bench, Vance Dickason characterizes an Eminence N151M-8 1” throat ring radiator compression driver coupled with the Eminence STI1 90° × 40° constant directivity horn. The N151M-8 includes a mylar diaphragm driven by a 1.5” voice coil wound on a polyimide former and cast aluminum body, neodymium ring magnet motor, and field-replaceable diaphragm. This article was originally published in Voice Coil, June 2017.

Test Bench: The New D4400Ti-Nd Compression Driver from PRV Audio

November 29, 2017 by Vance Dickason

Test Bench: The New D4400Ti-Nd Compression Driver from PRV Audio

Voice Coil characterizes a new compression driver from Brazilian pro sound OEM PRV Audio, a company that started operations in 2006, created by a group of former executives and engineers from one of Brazil’s most prestigious loudspeaker manufacturers, and which has not stopped producing high quality products. This edition of Test Bench looks at the D4400Ti-Nd compression driver, complemented with PRV Audio’s WGP22-50 2” bolt on 60° × 60° waveguide. This article was originally published in Voice Coil, May 2017.

Test Bench: ETON 29HD2 Magnesium/Ceramic 28mm Dome Tweeter

November 11, 2017 by Vance Dickason

Test Bench: ETON 29HD2 Magnesium/Ceramic 28mm Dome Tweeter

These Test Bench samples came from Germany. From Eton I received the 29HD2, its neodymium motor tweeter, with a fairly rich feature set that includes an aluminum faceplate, a 28 mm diameter magnesium diaphragm with a ceramic coating on both sides protected by a cosmetically attractive grill/phase plug, and driven by an aluminum former wound with round copper-clad aluminum wire (CCAW). This article was originally published in Voice Coil, April 2017.

Ultrasone Introduces Signature DXP Closed-back Headphones

November 7, 2017 by audioXpress Staff

Ultrasone Introduces Signature DXP Closed-back Headphones

Bavarian headphone manufacturer Ultrasone introduced the Signature DXP, dynamic closed-back headphones specifically tailored to DJs’ needs. With their hinged ear cups and shielding from background noise, the Signature DXP headphones are designed for use in the club. Ultrasone says the sound quality delivered by these headphones also makes them a great choice for studio environments or even living room enjoyment.

Test Bench: Accuton C30-6-358 High-End Tweeter

November 6, 2017 by Vance Dickason

Test Bench: Accuton C30-6-358 High-End Tweeter

The samples for this Test Bench came from respected German home/car audio OEM transducer manufacturer Accuton. I received the Accuton C30-6-358, its new “Cell Concept” neodymium motor ceramic diaphragm 30 mm tweeter. The Accuton C30-6-358 is an interesting tweeter for several reasons. The mounting system, which is part of the “Cell Concept,” is definitely unique, with its proprietary clapping mechanism. This article was originally published in Voice Coil, April 2017.

Test Bench: FaitalPRO HF142 Compression Driver Coupled with LTH142 60°×50° Horn

October 26, 2017 by Vance Dickason

Test Bench: FaitalPRO HF142 Compression Driver Coupled with LTH142 60°×50° Horn

Test Bench of the HF142 1.4” neodymium motor compression driver with the LTH142 60° × 50° horn, from Italian pro sound OEM FaitalPRO. Features for the HF142 include a ketone polymer diaphragm, with proprietary perforated suspension for acoustic tuning and a Finite Element Analysis (FEA) modeled and optimized four-slot annular phase plug. The phase plug’s design and its coupling with the diaphragm uses Faital’s proprietary simulation / modeling software. This article was originally published in Voice Coil, March 2017.

The SB Acoustics Satori TW29BN Beryllium Dome Tweeter

October 11, 2017 by Vance Dickason

The SB Acoustics Satori TW29BN Beryllium Dome Tweeter

For this Test Bench, SB Acoustics sent its new high-end Satori line neodymium 29 mm beryllium dome tweeter, the TW29BN. Features include a 29 mm wide surround beryllium diaphragm sourced from Materion, a non-reflective cast-aluminum rear cavity, a two-part aluminum faceplate with integrated mechanical decoupling, dual balanced compression chambers, a high-saturation neodymium ring type motor magnet with a T-shaped pole and dual copper cap shorting rings. This article was originally published in Voice Coil, February 2017.

SB Acoustics Satori MR13P-4. A New Home Audio 5.25” Midrange Driver

October 4, 2017 by Vance Dickason

SB Acoustics Satori MR13P-4. A New Home Audio 5.25” Midrange Driver

The subject of this month’s explication is the SB Acoustics 5.25” MR13P-4 Satori midrange. As with the MR16P-4, the MR13P-4 is nominally a midrange version of the SB Acoustics MW13P-4 5.25” woofer, but with higher sensitivity and shorter Xmax. The MR13P-4 is built on a cosmetically attractive six-spoke frame that has a minimal reflective footprint behind the cone to reduce reflections and a completely open area beneath the spider mounting shelf for enhanced cooling— both highly desirable attributes. This article was originally published in Voice Coil, February 2017.

B&C Speakers 6MBX44 MBX Mid-Bass Woofer

September 21, 2017 by Vance Dickason

B&C Speakers 6MBX44 MBX Mid-Bass Woofer

This edition of Voice Coil Test Bench characterizes the 6.5” 6MBX44 driver, from Italian pro sound OEM, B&C Speakers. The new MBX series of pro sound mid-bass woofers is especially well suited for small two-way loudspeaker applications. Features for the 6MBX44 include a proprietary four twin spoke cast-aluminum frame, enhanced voice coil cooling, curvilinear waterproof paper cone and inverted paper dust cap, and a neodymium ring magnet. This article was published originally in Voice Coil, January 2017.

Eighteen Sound Expands Subwoofer Range with High Performance Tetracoil Technology

August 10, 2017 by audioXpress Staff

Eighteen Sound Expands Subwoofer Range with High Performance Tetracoil Technology

Targeting the most demanding sound reinforcement applications, particularly touring systems, Eighteen Sound continues to design better-performing low frequency solutions with reduced size and less weight. Already a recognized leader in low frequency designs, the Italian brand continues to extend its subwoofer range featuring Tetracoil technology, with the introduction of the 15TLW3000 Very Low Frequency 15” woofer, and the announcement of the new 21TNLW5000 21” Neodymium woofer.

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