ADAM Audio Unveils A4V and A7V Limited Edition White Studio Monitors

On the occasion of the company’s 25th anniversary in 2024, ADAM Audio announced a limited-edition run of the A4V and A7V studio monitors. To celebrate the first quarter of a century of the Berlin, Germany -based brand, a restricted quantity of these two nearfield monitor models from the A Series will feature a decadent high-gloss arctic white finish. These will be available from June 2024 through selected official ADAM Audio retailers worldwide as well as the ADAM Audio webstore.

Voice Coil March 2024 focuses on speaker enclosures with a unique directory of innovative material ideas, followed by an always insightful patent review, where James Croft revisits the pivotal Dinaburg invention. For Test Bench, this month Vance Dickason characterizes the SIG180-4 6.5” woofer from Dayton Audio’s Signature Series, and a midbass shallow-profile 6.5” driver, the Stereo Integrity TM65 mkIV.

Playing (almost) at home, Acustica Beyma leveraged the opportunity of another Integrated Systems Europe show to welcome his vast network of OEM customers and distributors to its booth, and present the results of the company's latest engineering efforts. Beyma introduced several new products at the Barcelona show, including a new high-performance subwoofer for the LEX series, a new generation line array waveguide, and a high performance 8" coaxial transducer.

Voice Coil June 2023 features an extensive patent review in James Croft's Acoustic Patents column. The topic is a 2014 patent awarded to Nokia, offering an opportunity to revisit the history of electrostatic loudspeakers, with insights from Tim Mellow, one of the two listed inventors. In Test Bench, Vance Dickason focuses on the D8404-552000 Ellipticor cloth diaphragm dome midrange from Scan-Speak, and characterizes the SB Acoustics TW29BNWG beryllium dome and waveguide from the brand's prestigious Satori line.

Funktion-One has introduced what the company believes to be its most versatile loudspeaker to date. Evo X is a significant development of the full range, completely horn-loaded loudspeaker, featuring the latest Funktion-One waveguide technology to provide 90° horizontal dispersion and high SPL. An evolution of the decades-long research the company has conducted based on the work of Tony Andrews, the new Evo X features an advanced driver technology to achieve an even horizontal coverage suitable for live events and club dancefloors.

James Croft reviews another patent of a concept ignoring abundant prior art, which apparently wasn’t scrutinized by industry experts - as it should. The patent "Dynamic Acoustic Waveguide," was awarded to William Eugene Wheeler (High Ridge, MO) as inventor and assignee, and describes a “loudspeaker and a method of operation that allow for the production and emphasis of extremely low bass tones.

This Test Bench article characterizes Eighteen Sound’s AMT200P Air Motion Transformer and accompanying XMT200 6.5” waveguide. This driver is the brand's latest entry into the high-frequency transducer category, specifically designed for the pro sound community. The Eighteen Sound AMT200P includes a rectangular throat with a Kapton diaphragm with a neodymium magnet structure, and is rated for a power handling of 90W AES above 1.2kHz, with a sensitivity of 105dB, and a recommended crossover frequency of 1.2kHz at 48dB/octave. While the AMT200P can be used as a standard planar device it can be also coupled with a dedicated constant directivity horn, the 90°x 20° XMT200, featured in the characterization.

Martin Audio has extended its list of notable patents with the addition of a United Kingdom Patent for its XE stage monitor waveguide. The patent covers the use of Martin Audio’s differential dispersion coaxial drive units and the continuation of their waveguide shape to form the baffle, as seen in the XE monitors to achieve the desired HF coverage. The geometry of the static HF horn, the LF cone/moving waveguides and the static baffle combine to form a single HF horn.

Allen Sides' Ocean Way Audio announced its new Pro3 monitor (nicknamed 'Fat Boy'), the latest addition to the company's high-resolution monitor line. The new two-way active monitor system is its most compact design and delivers a frequency response of 45Hz to 20kHz and 110 dB maximum SPL between channels. A nearfield monitor designed for project and commercial recording studios, as well as in professional broadcast and post facilities where optimal performance is required, and space is at a premium.

This patent review looks at a “Loudspeaker with a Wave Guide” (Patent Number: US20140369543) by inventors Jussi Vaisanen and Ilpo Martikainen from Finish company Genelec. This patent relates to the Genelec 8351 Acoustically Coaxial Smart Active Monitor (SAM) monitor, originally launched in 2016. Later in 2017, Genelec expanded the concept into a complete series of Coaxial Active Monitors, “The Ones”. This article was originally published in Voice Coil, February 2015.