Loudspeaker Knowledge and Resources in Voice Coil May 2024

Loudspeaker Knowledge and Resources in Voice Coil May 2024
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audioXpress May 2024 Glass Audio Special Issue Now Available

audioXpress May 2024 Glass Audio Special Issue Now Available
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The Audio Voice - Weekly Newsletter for audioXpress and Voice Coil Communities

The Audio Voice - Weekly Newsletter for audioXpress and Voice Coil Communities
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Advertise in the Loudspeaker Industry Sourcebook 2024!

Advertise in the Loudspeaker Industry Sourcebook 2024!
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Patent Review: Inverse Horn Loudspeakers
by James Croft

Patent Review: Inverse Horn Loudspeakers

This article reviews a patent originally granted to inventors Philip R. Clements; (Tempe, AZ), Boaz Shalev; (Needham, MA), and James Joseph Croft, III; (Bellevue, WA), which has now expired. The patent describes a low-frequency transducer system with a multi-compression chamber, where an inverse horn structure is employed in combination with a resonance-distortion filter chamber. This was the third patent granted on Atlantic Technology’s low frequency system known by the trademark name H-PAS (High Pressure Acceleration System). This article was originally published in Voice Coil, September 2016.
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You Can DIY! Meet the Pentriode
by Alan Kimmel

You Can DIY! Meet the Pentriode

This DIY-focused article introduces the Pentriode, a concept to explore the familiar idea of connecting commonly available pentode tubes as triodes, creating a circuit that excels in linearity. The Pentriode is formed by making one simple change to connect the screen grid to the cathode of a cathode follower. The article proposes different possible approaches, including for a mu stage, a design that the author previously wrote about for audioXpress. This article was originally published in audioXpress, May 2022.
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Linear Systems Announces LSK489 Premier Performance JFET Re-Release
by audioXpress Staff

Linear Systems Announces LSK489 Premier Performance JFET Re-Release

Linear Integrated Systems, the world class producer of ultra-low-noise JFETS and other small-signal discrete semiconductors, has announced the re-release of its LSK489 discrete component with specialized parameter grading. The LSK489 is one of the world's premier JFETs optimized for use in high-end sensor front-end amplification designs, and the re-release in 2022 introduces improved manufacturing consistency.
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    Tube Amp Doctor Introduces New TAD 6V6GT-STR REDBASE Premium Selected Tubes
    by audioXpress Staff

    Tube Amp Doctor Introduces New TAD 6V6GT-STR REDBASE Premium Selected Tubes

    With the entirely new TAD 6V6GT-STR REDBASE, German company Tube Amp Doctor Musikhandels GmbH introduced a new family member to their REDBASE high quality premium tube series. An ideal tube for Fender Deluxe Tweed 5E3 or Blackface Princeton Reverb guitar amps, single ended Class A amps like the Fender Tweed Champ, Vibro Champ, Fender Champion 600 or the Univalve. As the company explains, many boutique amp builders have already embraced the TAD 6V6GT-STR REDBASE and the company is ready to ship worldwide!
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    USound Introduces Ultra-Compact MEMS Audio Module for Hearables
    by Joao Martins

    USound Introduces Ultra-Compact MEMS Audio Module for Hearables

    USound, the Austrian pioneer of MEMS speakers, announced the release of an audio module designed to enhance the performance of true wireless earbuds and hearing aids, enabling new degrees of design freedom. As USound underscores, with this new integrated solution, manufacturers can create more ergonomic and comfortable designs, with extended battery life and audio quality, while the form factor of hearing aids and TWS earbuds can be considerably reduced.
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    Lithe Audio Enters US Market With All-in-One Discrete Wireless Audio Systems
    by audioXpress Staff

    Lithe Audio Enters US Market With All-in-One Discrete Wireless Audio Systems

    Lithe Audio, the UK-based manufacturer of wireless audio systems for residential and commercial installations, announced that its lineup of all-in-one ceiling, surface, and garden speakers is now available to the US market. Featuring an integrated amplifier, connectivity, and high-quality speaker components in one device, each system requires only a power source for installation, making it simple for integrators to deliver pristine audio streaming in single rooms, distributed systems, and outdoors while enabling the creation of wireless surround-sound home theater systems.
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    Inovonics Changes Ownership as Jim Wood Retires
    by Joao Martins

    Inovonics Changes Ownership as Jim Wood Retires

    Broadcast equipment manufacturer Inovonics, Inc. was initially financed and has been wholly owned by Jim Wood and his immediate family following the founding of the company in 1972. Jim managed Inovonics until 2006, the year he turned day-to-day operations over to COO Ben Barber. Ben was elevated to President/CEO in 2012. Now, after 50 years leading Inovonics, Jim Wood steps down and passes the torch to CEO Ben Barber.
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    Pro-Ject Introduces Two New Balanced Output High-End Turntables
    by audioXpress Staff

    Pro-Ject Introduces Two New Balanced Output High-End Turntables

    Pro-Ject announced the first products in its upcoming collection of truly balanced high-performance turntables. The new X1 B and X2 B are the brand’s first turntables with dedicated, fully balanced mini XLR outputs. This connection optimizes the performance of Moving Coil cartridges when used with a compatible phono preamplifier. For out-of-box compatibility with the widest array of equipment and to keep the price down, a Sumiko Rainier Moving Magnet cartridge is factory installed for immediate enjoyment via the turntables’ RCA unbalanced outputs.
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    Donner Music Unveils Dobuds ONE True Wireless Active Noise Canceling Earbuds with Hybrid Drivers
    by Joao Martins

    Donner Music Unveils Dobuds ONE True Wireless Active Noise Canceling Earbuds with Hybrid Drivers

    Donner, a music technology company, announced the US debut of Dobuds ONE, its first true wireless and active noise canceling earbuds featuring both dynamic driver and balanced armature driver. The Donner Dobuds ONE feature a combination of a super-sized 12mm liquid-crystal polymer dynamic driver and a balanced armature driver with onboard ANC, and are available in matte black, mint green, snow white and navy blue for $49.99 MSRP.
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    Shure Announces Limited-Edition MV7 White Noir Microphone
    by audioXpress Staff

    Shure Announces Limited-Edition MV7 White Noir Microphone

    Launched in October 2020 in direct response to the popularity of the classic Shure SM7B for home streaming and podcasting, the Shure MV7 XLR/USB microphone was available only in black and silver finishes. Now Shure announced an elegant new limited-edition MV7 White Noir model, which features a black and white color combination, providing streamers and content creators with a contemporary option that will look even better on camera.
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