All items tagged with low frequency (43)

Speaker Builder: Open-Baffle Subwoofer Simulation with Akabak

December 11, 2024 by George Ntanavaras

Speaker Builder: Open-Baffle Subwoofer Simulation with Akabak

Confronted with the impossibility to conduct reliable measurements in the low-frequency domain for his DIY speaker project, George Ntanavaras explores the alternative of relying solely on simulation software. To validate the design of an open-baffle subwoofer using the AKABAK software, created by German company R&D Team, he also explores the transition from measurements to simulation. His experiments contrast the near-field response measurements of his loudspeaker with the accuracy of the simulation using AKABAK.

Simulation Techniques: Double Bass Arrays

November 21, 2024 by René Christensen

Simulation Techniques: Double Bass Arrays

Although the sound field in a room at low frequencies is one of the most discussed topics, approaches to dealing with room modes are typically treated as an optimization problem, and not correctly defined. This article explores a different strategy: the so-called Double Bass Array layout, using several subwoofers placed in a pattern, on the front and rear walls. Using advanced simulation techniques in order to understand what truly happens in the resulting room mode behavior, sound pressure levels, and resonances, this article builds upon existing research (Geddes, Welti, Devantier, et al.)

Celestion Launches the Ten Squared (Ten2) Low-Frequency Pro Audio Driver Series at ISE 2024

January 30, 2024 by audioXpress Staff

Celestion Launches the Ten Squared (Ten2) Low-Frequency Pro Audio Driver Series at ISE 2024

Celebrating the company’s 100th anniversary in 2024, Celestion introduced the new Ten Squared (Ten2) Series of pro audio low frequency drivers at ISE 2024 in Barcelona. Born out of a specialist development program at Celestion’s UK-based R&D facility the new Ten Squared Series comprises five drivers meticulously engineered for applications in subwoofers or as bass units in two- or three-way loudspeakers and larger format line arrays.

The AudioChiemgau ModeCompensator: A Quick Basic Test

November 15, 2023 by Rens Tellers

The AudioChiemgau ModeCompensator: A Quick Basic Test

The principles applied by Dr. Reinhold Lutz's for precise measurement of the sound pressure frequency response in the presence of room modes, are available in its AudioChiemgau Mode-Compensator solution. Jan Didden and Rens Tellers did a basic functional test to find out how well they could make it work and they were pleasantly surprised with the results. This article was originally published in audioXpress, October 2023.

Celestion Introduces FTR12-4080DL 4-Ohm Low Frequency Driver for Uncompromising Bass

July 26, 2023 by audioXpress Staff

Celestion Introduces FTR12-4080DL 4-Ohm Low Frequency Driver for Uncompromising Bass

Celestion introduced the FTR12-4080DL 12-inch, low frequency 4-ohm driver which is specifically designed for subwoofer applications, offering a compact and powerful alternative with a cast aluminum chassis and ferrite magnet. Well-established as an 8-ohm driver, this purpose-built subwoofer is now available in 4-ohm, making it ideal for applications that are hungry for every watt of amplifier power when delivering uncompromising bass.

SUBPAC and JLR Partner to Bring A New Dimension of Sound to Range Rover

May 31, 2023 by Joao Martins

SUBPAC and JLR Partner to Bring A New Dimension of Sound to Range Rover

High-fidelity tactile audio company, SUBPAC, teamed up with Jaguar Land-Rover (JLR) to improve the in-vehicle audio experience in the new Range Rover Sport SV Edition One system. The tactile experience was added to the Body and Soul Seat (BASS), which delivers audio vibrations allowing front-seat occupants to actually feel the music. According to the companies, this new approach to sound in-vehicle comes complete with wellness benefits, too, setting a new standard in immersive audio.

Genelec Introduces Large Size 8381A Point Source Main Monitor

May 16, 2023 by Joao Martins

Genelec Introduces Large Size 8381A Point Source Main Monitor

As part of its 45th anniversary year, Genelec has unveiled the 8381A Smart Active Monitoring system, a flagship floor-standing Adaptive Point Source design. According to the company, the large 8381A monitor fuses "exceptional precision and envelopment with unrivaled LF control, huge headroom and high-resolution imaging." Designed for high end music recording, mastering and audiophile listening, the 8381A creates a free-standing full range monitoring solution that can intelligently adapt to any acoustic environment.

IsoAcoustics Launches Aperta Sub XL Isolator for Large Subwoofers

May 15, 2023 by audioXpress Staff

IsoAcoustics Launches Aperta Sub XL Isolator for Large Subwoofers

Scheduled for presentation at the High End 2023 show in Munich, Germany, the new IsoAcoustics Aperta Sub XL subwoofer isolator expands on the Aperta Sub and makes the patented IsoAcoustics technology available for subwoofers of up to 160 lbs (72.5 kg). The subtle design does not get in the way of the feet on the subwoofer and remains visually subdued while unleashing the speaker’s full potential. Carpet disks for anchoring the subwoofer into carpeted surfaces are included.

Patent Review: Rotary Transducer with Improved High-Frequency Output

April 26, 2023 by James Croft

Patent Review: Rotary Transducer with Improved High-Frequency Output

This article examines an important patent filed in 2014 by F. Bruce Thigpen (Tallahassee, FL) and granted in June 2016. Appearing both as the inventor and assignee, Thigpen describes a rotary sound transducer having an improved output at higher frequencies. Thigpen has been working on this type of device for more than a decade and has advanced what was already a very difficult engineering achievement, to a more sophisticated structure that apparently raises the general performance and high frequency limits beyond what was thought possible with this architecture. This article was originally published in Voice Coil, July 2017.

Meyer Sound Introduces 2100-LFC Low-Frequency Control Element With New Four Voice Coil 21" Woofer

January 25, 2023 by Alfred Moody

Meyer Sound Introduces 2100-LFC Low-Frequency Control Element With New Four Voice Coil 21" Woofer

Meyer Sound announced a new 2100-LFC low-frequency control array element, a powerful new loudspeaker design that extends the advanced technology of its latest Phanter large-format linear line array loudspeaker down to the lowest limits of audibility. By pairing a potent Class-D amplifier with a single, all-new 21-inch driver with four voice coils, the 2100-LFC produces an extended frequency response from 30Hz to 125Hz.

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