Celtic FC upgrades stadium sound with fully networked solution from Bosch and Electro-Voice
- PEL Services Limited upgrades evacuation and public address systems for legendary Celtic FC with phased stadium installation
- Electro-Voice pro audio EVF and EVH series loudspeakers provide improved coverage and clarity as part of integrated digital audio network
- Bosch Praesideo meets all voice alarm and communication needs, networking interfaces with legacy loudspeakers and new sound system
Celtic Football Club in Glasgow boasts Scotland’s largest football stadium and some of its most ardent fans. When the club took on the task of upgrading the stadium experience, it engaged PEL Services Limited, an electronics engineering firm based in Northolt, northwest London, to design and install upgrades to the public address and emergency sound systems in 60,000-seat Celtic Park.
“Fully networked sound reinforcement for one of the loudest stadiums ever”
With a strong stadium-wide IT network and existing public address infrastructure already in place, PEL advised the selection of Bosch Praesideo digital Public Address and Emergency Sound System with Electro-Voice pro audio loudspeakers to improve coverage, clarity and fidelity within the main bowl area of the stadium. Because both systems can be interfaced to the Dante™ networking standard, both the Bosch Praesideo system and all Electro-Voice loudspeakers are monitored and controlled remotely via Electro-Voice N8000 NetMax digital matrix controllers.
“Celtic Park is an awesome stadium, and one of the loudest places I’ve ever been for a match,” notes Vic Swain, Engineering Director for PEL. “The club wanted a state-of-the-art emergency notification system, and wanted to integrate that with an audio system that would provide clear sound for every seat in the house. It’s a challenging project, but the combined solution of Bosch and Electro-Voice works perfectly.”
The first phase of the operation was the installation of the Bosch Praesideo public address and emergency sound system, serving what Swain refers to as the “back of house” area: the internal portions of the stadium, including concourses, turnstiles, restrooms, and offices. Its open architecture and high level of redundancy makes Praesideo a scalable, reliable solution that exceeds safety standards while offering complete communications flexibility.
The stadium system is based on dual Praesideo network controllers with an audio expander interface and six strategically placed call stations. The 100V audio system utilizes legacy installed loudspeakers, all of which were tested and upgraded with Bosch line supervision sets. This enables Praesideo to check all speakers for proper line operation. The system is powered by 22 Bosch power amplifiers with onboard DSP modules.
PEL engaged Acoustics Plus, an independent acoustic consultant based in Croydon, to advise on proper deployment of the Electro-Voice loudspeakers. Research included recording SPL levels throughout a game, documenting the sonic requirements and using computer modeling to map optimal locations and dispersion patterns for full coverage. Aimed down from beneath the roof, the system uses a mix of frontloaded EVF-1152D and horn-loaded EVH-1152D, both full-range, weatherized loudspeakers from the EV-Innovation family.
“Celtic always wants to do the very best for their fans – in addition to meeting the evacuation system legal standard for Speech Transmission Index,” notes Swain, “they also wanted it to sound just as good when the place is really rocking during a big match. These EV speakers accomplish that with ease, even in problem areas. We had structural engineers and riggers working closely with the acoustic consultant to make final adjustments. A lot of preparation, but on the day the speakers were hung and aimed, it was extremely quick and accurate.”
As part of the process, Electro-Voice CPS series power amplifiers, two N8000 NetMax DSP matrix units, and a redundant fiber ring were installed as infrastructure support for the full stadium system. To date, the new loudspeakers are in place above the north stands and adjacent corner areas. Future phases will complete the installation above the south stands, adjacent corner areas, and west and east stands behind the goals.
“The integration of Bosch Praesideo in the back of house with Electro-Voice loudspeakers aiming at the area above the seats, all working together in a centrally controlled network, represents a real commitment to the safety and comfort of the fans,” he says. “It’s great to help a legendary organization like Celtic F.C. to achieve their goals.”
This article is originally from www.electrovoice.com
Bosch introduces LB 20 commercial loudspeakers
The LB 20 series is the latest member of the Bosch family of compact loud-speakers for installed applications. Every aspect of the LB 20 series has been designed from the ground up to ensure efficient installation for the contractor and excellent results for the end-user. The series includes 4-inch, 5.25-inch, and 8-inch 2-way models with a matching dual-10-inch subwoofer, making it easy to select a suitable model a specific space – a new go-to solution for distributed sound systems.
All LB 20 models offer Bosch-engineered components for superior sound quality, low- profile looks and robust reliability for a wide range of indoor and outdoor applications. These include retail environments, hospitality settings, such as bars, lounges, patios, pool areas and restaurants. Conference and meeting rooms, fitness clubs, performing arts and sports venues and houses of worship. The series offers true weatherproof construction for outdoor spac-es, confirmed by extensive and rigorous testing above and beyond industry norms. All models are paintable, and IP54 certified for weather resistance; an IP65 weatherproof version is available for the 5.25-inch loudspeaker cabinet and the subwoofer models.
The innovative, new wall-mount system makes installation literally “as easy as 1-2-3” – quicker and easier than ever before: Attach the wall-mount (a built-in bubble level saves time) and terminate the cables inside, apply the paint cover to protect the wall- mount until construction is completed (when the cover can be removed), and then simply slide the pre-wired speaker with adjustable arm onto the wall-mount and lock into place.
Kindly visit: https://www.boschsecurity.com/corporate/press-releases/press- release/invented-news-lb20.html for more information about the LB 20 Series.
This article is originally from www.pro-systems.co.za
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Electro-Voice and Bosch provide “heard, but not seen” sound solution for Houston gallery
- Electro-Voice EVID Compact Sound systems hidden amid ceiling elements create calm, welcoming ambience throughout art gallery
- Southwest Building Systems designed the system to meet gallery requirements for high fidelity and intelligibility with minimal visual impact
- Bosch PLENA matrix mixer provides wireless control of all audio in gallery, controlling zoned loudspeakers via iOS app
For their Art of the World Gallery in Houston’s River Oaks area, co-owners Liliana Molina and Mauricio Vallejo wanted to augment their guests’ appreciation of the outstanding contemporary artists they display. Southwest Building Systems of nearby Silsbee was engaged to realize this vision, and an audio visual system was installed to support artist presentations and provide background music. There is also a sound system in the VIP room, where patrons can privately view art they are considering for purchase.
“The idea was to create a warm, comfortable ambience throughout the gallery, while keeping the visual focus on the art itself,” says Brent Thornhill of Southwest Building Systems. “We knew that a combination of Bosch signal processing and the new EVID Compact Sound loudspeakers by Electro-Voice could produce the audio impact they wanted while being, essentially, invisible.”
To meet the gallery’s requirement of consistent, high-fidelity sound throughout their two-story space, Southwest Building Systems used a zoned distribution system, the Bosch PLENA matrix mixer (model PLM-8M8). Easily implemented, the mixer allows independent control of source material and volume, either directly through wall-mounted Bosch control panels and volume controls, or wirelessly through the Bosch PLENA app for iOS devices.
Because the gallery hosts presentations by the artists it exhibits, a separate sound system was needed for the front foyer and reception area. For this open space, Thornhill installed an Electro-Voice R300 wireless microphone system with both handheld and bodypack transmitters. A single Electro-Voice EVU-1082 loudspeaker, mounted above the reception desk, provides full-range, highly intelligible audio at modest volume levels from both spoken and musical sources.
The primary background audio for the main gallery spaces is provided by the EVID S44W Compact Sound system from Electro-Voice, which consists of four small satellite speakers and a single subwoofer, finished in white. Four such systems are spread throughout the gallery, with the tiny yet robust satellite speakers mounted to the ceiling beams and the compact subwoofers installed atop floating ceiling structures, making them completely invisible to the patrons. In addition, 16 Bosch LB2 speakers at ceiling level along the periphery ensure that every corner of the gallery is covered uniformly.
The final touch is the Art of the World Gallery VIP room, where clients can arrange private viewings of a piece they are considering for purchase. This private room is set up as a separate audio zone, with music provided by a single Electro-Voice EVID FM 4.2, a two-way, flush-mounted speaker set into the wall along with a Bosch rotary volume control. Co-owner Mauricio Vallejo liked the sound quality so much, he had one installed in his own office as well.
Vallejo is extremely pleased with both the sound quality and control that the system delivers for Art of the World Gallery. “Southwest Building Systems gave us everything we asked for, with clear, beautiful sound everywhere,” he says. “To have total control of the sound system, anywhere in the building, from my iPad or iPhone, is something we all love. It makes everything easy and professional, enhancing the viewing experience without interfering with it. We are very pleased.”
This article is originally from www.electrovoice.com