All items tagged with subwoofer (111)

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.

Test Bench: The UF 295 CBS Ultra-Thin 10” Subwoofer from Neotera

July 31, 2024 by Vance Dickason

Test Bench: The UF 295 CBS Ultra-Thin 10” Subwoofer from Neotera

Another exciting driver from Neotera, the UF 295 CBS is a new ultra-thin 10" subwoofer primarily intended for high-quality applications in home audio or automotive systems. The UF 295 CBS impresses immediately with its single piece black anodized concave cone assembly suspended by two large rubber surrounds, one on each side, not using a spider for compliance. The cone is driven at its perimeter by a large aluminum voice coil and a unique motor structure of 72 neodymium bar magnets, covered by no less than 10 international patents. This article was originally published in Voice Coil, April 2024.

Test Bench: The 10NMFS 10” Subwoofer from Beyma’s Near and Mid Field (NMF) Line

November 8, 2023 by Vance Dickason

Test Bench: The 10NMFS 10” Subwoofer from Beyma’s Near and Mid Field (NMF) Line

Beyma's Near and Mid Field (NMF) line includes this compact woofer aimed at the studio/home audio market, one of three models with a similar feature set that includes carbon fiber cones and dust caps, Malt Cross cooling technology, triple aluminum, and copper shorting rings, dual Bimax spiders, and Quattro inside/outside voice coil windings. This article was originally published in Voice Coil, August 2023.

Patent Review: Passive Cardioid Speaker

August 16, 2023 by James Croft

Patent Review: Passive Cardioid Speaker

Renowned audio speaker design, David W. Gunness, now with Fulcrum Acoustic, and previously with Electro-Voice and Eastern Acoustic Works, is no stranger to this field of research where he holds numerous patents.This review is a fascinating read, especially given that Fulcrum has already proven the validity of the proposed designs in actual products. It seems clear that Gunness achieved “a very good design that should advance the art in the category of cardioid devices,” as Croft notes.

Speaker Design and Triple Test Bench in Voice Coil August 2023

July 26, 2023 by audioXpress Staff

Speaker Design and Triple Test Bench in Voice Coil August 2023

Voice Coil August 2023 offers the second part of Peter Larsen's FINE Circle speaker design tutorial, updated directories of Voice Coil Winders and Converters, and Magnet Vendors and Distributors for 2023. James Croft reviews a new Diaphragm patent attributed to Tymphany, and Vance Dickason offers a triple dose of Test Bench, starting with the Beyma 10NMFS 10" subwoofer, followed by the Wavecor WF182BD13-04 7" midbass woofer, and culminating in the Scan-Speak 18ME/9642T00 Ellipticor 6.5" Midrange.

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.

June 29, 2023 by audioXpress Staff

Resonado Partners with Parts Express to Make Res-Core Woofer Available Direct to Consumers

Resonado Labs announced that, for the first time ever, its technology is now available directly to the public. Previously, Resonado's high-performance racetrack drivers, featuring the proprietary Res-Core architecture, were exclusively offered to companies through licensed manufacturers. Meeting requests from speaker builders and developers, Resonado partnered with Parts Express to make the NW7 Gen 1 racetrack woofer directly available to the market.

Test Bench: Wavecor’s New SW259WA01 10.25” High Xmax Subwoofer

May 3, 2023 by Vance Dickason

Test Bench: Wavecor’s New SW259WA01 10.25” High Xmax Subwoofer

This article offers a detailed characterization of Wavecor's latest SW259WA01 High Xmax Subwoofer. This new 10.25” subwoofer has a generous feature set that includes a proprietary six-spoke cast-aluminum frame that is substantial enough to support the heavy ferrite motor assembly and incorporates 36 vents below the spider mounting shelf. Other features include a very stiff and thick flat profile aluminum cone, an ingenious motor system with enhanced cooling, and a 2" four-layer voice coil wound. This article was originally published in Voice Coil, February 2023.

Test Bench: The SW26DBAC76-4 Shallow-Mounting Subwoofer from SB Acoustics

April 12, 2023 by Vance Dickason

Test Bench: The SW26DBAC76-4 Shallow-Mounting Subwoofer from SB Acoustics

This Test Bench article analyzes the popular SW26DBAC76-4 10" low-profile subwoofer from SB Acoustics, specifically designed (and patented) for applications that require a subwoofer that will fit into very shallow-depth enclosures. The SW26DBAC76-4 has a unique and interesting feature set that starts with an extremely shallow 79.5mm (3.13") cast-aluminum frame. The outside rim of the inverted cone is attached to the outside perimeter of the spider, and moves with the cone assembly. The inside diameter of the spider that would normally be glued to the voice coil assembly is then connected to the motor structure. This is a clever design.

R&D Stories: Motion Feedback Desktop Subwoofers for Nearfield Studio Monitors

October 26, 2022 by Zami Schwartzman

R&D Stories: Motion Feedback Desktop Subwoofers for Nearfield Studio Monitors

In this article, Zami Schwartzman shares his personal journey to design and perfect his own accelerometer-based motion feedback desktop subwoofers, including plate amplifiers with MFB control, crossover and voice coil thermal protection that can be matched with any low frequency MFB driver. The proof of concept demonstrated the ability to perfectly complement popular active nearfield monitors, mitigating the effects of room reflection. This article was originally published in audioXpress, September 2022.

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