All items tagged with Test Bench (276)

Test Bench: The Excel 29mm T29X001 Home Audio Tweeter from SEAS

May 15, 2024 by Vance Dickason

Test Bench: The Excel 29mm T29X001 Home Audio Tweeter from SEAS

The SEAS T29X001 tweeter, from the company's high-end Excel line of transducers, is a wide surround format type, like the original Vifa DX/XT tweeters, and combines the latest Composite Sound metamodal thin-ply carbon diaphragm (TPCD) technology with the seriously outstanding SEAS Excel radially charged Hexadym motor structure. This new tweeter makes the Norwegian manufacturer effectively the first company in the market to offer the latest metamodal TPCD diaphragm solution.

Test Bench: The New LM10n Wide Band Midrange Ribbon Transducer from Radian Audio Engineering

May 8, 2024 by Vance Dickason

Test Bench: The New LM10n Wide Band Midrange Ribbon Transducer from Radian Audio Engineering

This is the eagerly awaited characterization of the new LM10n planar ribbon from Radian Audio, one of the most interesting drivers launched in 2023. Like all of Radian's latest planar transducers this one was designed by 35-year loudspeaker engineering veteran Igor Levitsky, with the LM10n being the latest and larger sized model, described as a wide range 120Hz to 20kHz ribbon planar transducer, which excels as a midrange and can be utilized in both open-back (dipole) and closed-back (monopole) formats.

Test Bench: The New DE350-8 Ultra-Compact 1" Compression Driver from B&C Speakers

May 1, 2024 by Vance Dickason

Test Bench: The New DE350-8 Ultra-Compact 1" Compression Driver from B&C Speakers

This Test Bench characterizes an ultra-compact (under 60mm diameter) compression driver, along with the B&C Speakers ME10v2 90°x60° coverage horn. The really cool feature of the DE350-8 is the patent-pending phase plug. Inside, the DE350 has a round symmetrical outside channel, and an inside channel with a patent-pending twist for overall improved frequency response. Weighing in at a mere 275 gram, it is an ideal candidate for the new generation of lighter, more compact line array loudspeakers.

Test Bench: The Purifi Audio PTT8.0X04-NAB-02 8” Aluminum Cone Woofer

April 10, 2024 by Vance Dickason

Test Bench: The Purifi Audio PTT8.0X04-NAB-02 8” Aluminum Cone Woofer

The PTT8.0X04-NAB-02 is the fifth Purifi woofer to be examined in Test Bench. The new 8" aluminum cone woofer includes the same constant Sd surround, cone edge stiffening ring, and low magnetic hysteresis motor design as previous models. The addition of the unique Purifi NBR surround, make the PTT8.0X04 like no other in the history of woofer development. The PTT8.0X04e is rated for 350W IEC268 long-term power handling, and a 9.3mm Xmax.

March 13, 2024 by Vance Dickason

Test Bench: The UF295FAS Thin-Profile Dipole 10" Woofer from Neotera

This new 10" thin-profile woofer comes from Neotera, a new company headquartered in Sweden, founded by a diverse group of loudspeaker/electronic design veterans. Maurizio Servadio is the engineer who invented the Neotera Ultraflat technology and is based in Italy where the UF295FAS is manufactured. This thin-profile woofer with a depth of 2.6" and with a low-frequency response down to 29Hz, is specifically designed for dipole system applications. This article was originally published in Voice Coil, November 2023.

Test Bench: The New 6” WF152BD09-04 Midbass Driver from Wavecor

March 6, 2024 by Vance Dickason

Test Bench: The New 6” WF152BD09-04 Midbass Driver from Wavecor

This Test Bench characterizes the 6" WF152BD09-04 midbass driver from Wavecor, part of a new line of midbass models using a unique proprietary interwoven Kevlar and carbon fiber cone material. The WF152BD09 has a generous feature set that includes a vented inverted dome-type phase plug (no dust cap) and a shallow profile low loss high Qm NBR surround, accompanied by a flat 4" diameter black cloth spider. This article was originally published in Voice Coil, November 2023.

Test Bench: The D2008/2010 Revised Classic Dome Tweeter from Scan-Speak

February 21, 2024 by Vance Dickason

Test Bench: The D2008/2010 Revised Classic Dome Tweeter from Scan-Speak

Vance Dickason measures the Scan-Speak D2008/2010, the revised version of the classic dome tweeter from the Danish brand. The D2010 and the D2008 are two revised classic Scan-Speak 19mm soft dome tweeters, originally launched more than 35 years ago. Scan-Speak basically discontinued production of the original 19mm ferrite magnet soft dome models and replaced them with these new 19mm textile dome neodymium motor versions.

Test Bench: The New TW030WA23/24 Tweeters from Wavecor

February 14, 2024 by Vance Dickason

Test Bench: The New TW030WA23/24 Tweeters from Wavecor

This Test Bench characterizes an updated version of the popular TW030WA23/24 tweeter from Wavecor, the latest in the company's 30mm tweeter lineup. The A23 is the 4Ω version, while the A24 is the 8Ω version and they are both available without a faceplate for custom mounting (the TW030A25/26 model). While the TW030WA23/24 have a very similar feature set to the Wavecor TW030WA13/14 tweeters, the biggest difference is a new graphene reinforced textile (Tetoron) 30mm soft dome.

Test Bench: The AMT100H Driver from Eighteen Sound

February 7, 2024 by Vance Dickason

Test Bench: The AMT100H Driver from Eighteen Sound

The AMT100H driver from Eighteen Sound is the "little brother" of the AMT200P (with the XMT200 horn) air motion transformer (characterized in the November 2021 issue). Features for the AMT100H, include a rectangular throat with a Kapton diaphragm, a neodymium magnet structure, and a net weight of 1.84lb (0.835kg). This driver has a recommended crossover frequency of 1.2kHz at 24dB/octave. This article was originally published in Voice Coil, October 2023.

Test Bench: SEAS’ New L22ROY2 8” Subwoofer from Its Extreme Line

January 31, 2024 by Vance Dickason

Test Bench: SEAS’ New L22ROY2 8” Subwoofer from Its Extreme Line

The new L22ROY2 8" subwoofer from Norwegian OEM manufacturer SEAS offers a well-appointed feature set that includes a proprietary cast 16-spoke (8 twin spokes) cast-aluminum frame, completely open 1" deep below the spider mounting shelf. Other features include a very stiff black anodized aluminum cone and dust cap, NBR surround, driven by a 2" voice coil. This article was originally published in Voice Coil, September 2023.

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