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
Please contact us for more information on Bosch products.
Electro-Voice celebrates 90 years at NAMM 2017
Electro-Voice celebrates 90 years and starts off the New Year with a LOUD & CLEAR message at NAMM 2017
Electro-Voice kicked off its 90th birthday year with a LOUD & CLEAR pledge to portable speaker customers at this year’s NAMM show in Anaheim, California: Big wattage is fine, but clarity is key – whatever sound you make, sound your best with EV.
Under the LOUD & CLEAR banner, EV’s new NAMM booth served as a live performance venue to showcase talent playing through models from EV’s best-selling family of portable loudspeakers (ZLX, ELX, EKX, ETX) and new ND Series microphones. Nine different artists spanning a broad scope of genres performed at the booth over the course of the four-day show, allowing visitors to hear EV sound quality for themselves. Multiple product experience areas gave guests a chance to compare and contrast the various features each loudspeaker series offers to suit a range of portable applications and budgets. A mic display with listening stations showcased the ND Series, with members of the popular PL and RE series also on hand.
EKX portable loudspeakers won a ProSoundWeb Readers’ Choice Award at the show!
EV also launched the new #EVsound social media campaign at the show – EV users can post/tag music they’ve made with EV gear to be featured on the #EVsound webpage and entered into monthly drawings for EV-branded merchandise. Entries will also be in the running to be featured as soundtracks on new EV videos.
This article is originally from electro-voice.com
P.Audio Enters Touring Market With Introduction Of VIA Line Array
New series includes two powered full-range cabinets and two subwoofer options.
P.Audio has introduced the VIA line array, made up of the VIA-8 and VIA-12 full-range cabinets joined by the VIA-SUB cardioid subwoofer and the SB-218 subwoofer. The new system was on display at the NAMM show in Anaheim.
All VIA models are self-powered. VIA-8 and VIA-12 enclosures both are specified with 15-degree vertical dispersion, differing only in terms of horizontal dispersion (80 and 120 degrees). Both models are rated to provide a maximum continuous SPL of 126 dB (and maximum peak SPL of 132 dB).
They’re loaded with dual 8-inch woofers and a 3-inch large-format compression driver. The woofers have a neodymium motor structure with aluminum shorting rings for reduced distortion, and the cone pulp is optimized to provide accurate mid-bass reproduction while remaining linear, even at high drive levels. The compression driver has a Mylar surround for more linear performance around 1 kHz, where diaphragm displacement is higher.
The VIA-SUB cardioid subwoofer utilizes a rear-facing 12-inch woofer to effectively cancel the sound radiation behind the cabinet and to control low frequency feedback issues. The newly designed, forward-facing 18-inch woofer uses double neodymium magnets for high flux density to provide more impact from a relatively small cabinet.
The SB-218 is recommended for applications that require high levels of low frequency reproduction, loaded with two 18-inch neodymium woofers utilizing two neodymium magnets that allow a long winding length to be used without sacrificing BL product.
Onboard amplification in each enclosure provides 1,500 watts of RSM power (3,000 watts peak) and is matched to the remote controllable DSP with AD-DA converters operating at 96 kHz. The DSP makes use of the latest FIR technology to help ensure linear system phase.
An onboard RS-485 connector in each component facilitates remote control with the included software, designed to allow easy editing of single cabinet parameters. The software allows adjustment of graphic EQ, delay times and gain, along with real-time monitoring of amplifier health.
The rigging for the VIA series is designed to support up to 16 VIA-8 or VIA-12 cabinets or 8 VIA-SUB cabinets. The 3-point rigging design allows for simple setup with minimal effort. The side and rear rigging is made from 6061 T6 extruded aluminum with pins made from hardened steel and stainless steel. The rigging design allows inter cabinet array angles of up to 14 degrees.
Subwoofer rigging is fixed at 0 degrees splay angle, as the delay in each cabinet is available to create different radiation patterns as needed.
First Love Generation Chooses Electro-Voice
Victor Vermaak, Prosound’s church audio specialist, worked closely with First Love Generation in Ruimsig to design an audio system that would fulfill their requirements for their overflow/lecture room. In the end, he met and exceeded their expectations with an Electro-Voice solution incorporating Zxa1 powered speakers.
The system will serve to provide sound for video playback as well as audio from the main church. They went with the EV Zxa1’s to keep the same sonic character of the EV EKX used in their main church.
Other Prosound supplied equipment includes a Midas M32 console, Audio-Technica 3000 series wireless belt pack systems with DPA D-fine headset mics as well as Audio-Technica 3000 series handhelds.
Electro-Voice loudspeakers fill Karbala Olympic Stadium with superb sound
The recently opened Karbala Olympic Stadium in Iraq is a 30,000-seat venue designed to host major sports, music, religious and youth events. Audio for the project was provided by Baghdad-based APCO Electronics, which provided acoustics design and participated in the actual installation as well. The company chose a sound system from Electro-Voice, creating a multi-zone digital audio system based around the IRIS-Net system control and supervising software and Electro-Voice EVH-1152 horn-loaded loudspeakers. The selected sound system stands for reliability, superior sound quality and scalability to future requirements. In addition, Electro-Voice amplifiers, microphones and wireless systems were also utilized.
The primary system requirement was that the sound system would meet FIFA football standards, which require 92 percent direct coverage and high intelligibility, with a Speech Transmission Index (STI) of 0.50 or higher. The installed system exceeds those standards, delivering 95 percent coverage with an outstanding STI (Speech Transmission Index) rating of 0.80, indicating excellent speech clarity. Next to public address announcements, the system should also be used for voice alarm and evacuation purposes.
Using EASE simulation software, the APCO team developed a design based on the Electro-Voice EVH-1152 loudspeaker system, a two-way 15-inch horn-loaded design available in six dispersion patterns. For the specific grandstand angles at Karbala Olympic Stadium, APCO used 24-each of 60×40-degree and 90×90-degree coverage patterns. Paired together, this combination provides direct, full-range coverage to all seating locations, including the difficult corner areas. In addition, two EVH-1152 loudspeaker systems with 90×90-degree dispersion are deployed individually at either end of the field to deliver audio onto the playing surface as needed.
The entire sound system is networked together using Electro-Voice N8000 Dante- enabled DSP matrix controllers and powered by Electro-Voice CPS series amplifiers with RCM-810 remote control modules. The N8000 from Electro-Voice provides complete system routing and control via graphical user interface in IRIS-Net software. The main loudspeaker system is divided into four zones, each with its own N8000 from Electro-Voice and either three or four amplifiers, with the east side zones requiring and extra amplifier to feed the field speakers. All amplifiers are connected to their associated N8000 via a gigabit Ethernet switch to handle signal routing, with redundant connectivity to ensure a reliable digital network. A fifth N8000 is stationed in the stadium’s main control room, and acts as the master unit for the entire system, routing the audio to each of the four individual zones. APCO programmed the signal processing core to handle all required audio sources, including microphones, PC-based streaming audio, emergency notifications and scoreboard audio.
Karbala Olympic Stadium represents the largest Dante system that APCO Electronics has designed and installed. Thus, the feeling of accomplishment was strong when the APCO team finally heard the Iraq national anthem being played through the Electro-Voice system at the opening ceremonies. That feeling was reinforced shortly after the event when APCO received calls from the Minister of Youth and Sport, and from local broadcaster Ishtar Media, thanking them for the outstanding audio quality.
This article is originally from Pro-Systems Africa News
Bridge Church purchases its second Electro-Voice PA rig from Prosound
In 2012, Crossroads Church in Alberton, Johannesburg, had a change of leadership and with this came new levels of required excellence including the decision to upgrade the PA system for the 400-seater church.
Prosound installed an Electro-Voice SX300 rig with Tour X and SB122 Subs, all powered by Q series amplifiers and processed by a DC-One. This system provided better speech and music reproduction than has ever been experienced at Crossroads.
2015 saw even bigger changes for Crossroads, starting with a name change to Bridge Church, building alterations and upgrades and an additional EV Rig for the Main Auditorium. Due to the existing relationship with Prosound and EV, it made sense to continue building with EV and the new ETX was the chosen loudspeaker series and consists of four flown ETX-15’s at the front of the stage, with ETX-10’s as flown side fills. Two more ETX-10’s have been added as delays about mid-way down the length of the venue. Six S-40 front fills are mounted to a ladder truss at the front edge of the stage to add some HF sizzle for the front couple of rows. Two ETX-18s 18” sub woofers handle the majority of the low end enhancement and are installed in the venue’s sub pits to the left and right of the stage, with two more ETX-15s 15” subwoofers being installed at the front of the stage to provide even bass coverage for the entire audience area.
The system is being processed by the existing DC-One from the original installation, but with the Sub-woofers running off a Mono Aux from the Midas M32 Mixing console. Existing Q series amplifiers were also re-used to power the S40 front fills in the main auditorium. The existing SX300’s and SB122 Sub Woofers have been re-used in other venues on the church premises.
Pastor Trevor Coleman agrees that the EV ETX range has proven to be very well-priced value for money, saying that “we have been pleasantly surprised by the powerful but rich quality sound that could be expected from the more high-end systems at a significantly more reasonable price.”