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Articles July-August 2020

Bay Owl Studios – Not Just Music by the Bay

Launched in February 2020, Bay Owl Studios was founded by Varun Parikh who is an audio engineer and had no significant musical influence while growing up. His first exposure to music came when he was in high school..... read more

Harman all the Way

India’s First Domestic Hotel Chain – the Luxurious MAYFAIR Lake Resort – hires Qubix Technologies to provide state-of-the-art, end-to-end Integration with HARMAN Professional Solutions. PT reports..... read more

ANGRIYA Cruises the Seas with Bose

Latest cruise ships are teaming with audiovisual technology designed to keep passengers awed and coming back for more. In this feature PT reports on the audio installation of one such cruise ship - The Angriya Luxury Cruise Liner..... read more

Sennheiser 75-year Milestone

June 2020 marked the 75th anniversary of the foundation of Sennheiser, one of the world’s leading manufacturers of headphones, loudspeakers, microphones and wireless transmission systems. Through these 75 years, Sennheiser..... read more

Adiyogi Divya Darshanam Continues to Raise Standards

Since it’s unveiling in 2019 by the President of India Shri Ram NathKovind, the Adiyogi Divya Darshanam has enthralled spectators from across the globe. In May this year, this one of its kind projection mapping..... read more

Shankar & Siddharth Mahadevan’s Lambodara Studios

In the March-June 2020 issue of PALM Technology, PT did a cover story on Shankar and Siddharth Mahadevan’s new studio Lambodara. Here are some more images of the new studio..... read more

Acoustic and Audio System Design for Small Rooms- Part 2

In part 1 of this series we defined a small room, introduced the concept of sound waves as they relate to phase shift and comb filtering, and even touched on the Haas (precedence) effect. In this article, we will talk..... read more

IRAA 2020 Goes Virtual

PALM expo’s concern to ensure safety from ongoing pandemic mandated cancelation of the 2020 edition of PALM expo and in the best interest of the industry and business, decided not to move forward with the expo in 2020, carrying forward the show to May 2021..... read more

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Alcons Audio Launches QB242 Arrayable Subwoofer




The QB242 is a modular bass element to be used in both permanent and (limited) portable applications. It is designed as a fully-scalable low-frequency extension (LFE) system to the QR24 line-source column system, or as arrayable LFE system with any Alcons pro-ribbon system.

The QB242 can be stacked or flown in multiples, making it an ideal building block to form bass arrays, for obtaining low frequency projection and throw control in acoustically challenging spaces or over longer distances.

The controlled (cylindrical) projection of the QR24 can thus be extended down to the lower frequencies by enlarging the LFE array length through adding extra QB242 modules. The lowest usable frequency of one single element is 35Hz.

The Q-systems are the perfect tool in applications where a high directivity and/or a very long throw is required, combined with HiFi output and concert SPL’s, like theatres, churches, Houses of Worship, mobile outdoor sound system and “acoustically challenging rooms.”

The two direct-radiating 12” Neodymium woofers are mounted in a vented chamber, with large bass reflex ports for excellent breathing capacity, increasing overall output while minimizing port-compression. The tight driver arrangement caters for optimal array coupling.

The integrated mounting hardware facilitates quick and easy coupling with other QB242 modules. The QB242 is powered and controlled by the ALC amplified loudspeaker controller.

Philip de Haan, head of Alcons Audio R&D said, “Our Q-series is the purest form of a line-source array, where we are able to acoustically obtain a pure, virtually side-lobe-free cylindrical projection, without the need for DSP-based beamforming. The Q-series is probably our most underestimated system, as listeners are always surprised by the phenomenal throw and razor sharp vertical directivity control of even a single QR element; and to experience a coherent QB array of 12m/39-ft tall in one of our reference projects is quite impressive!”

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