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“The team at the Ambler Theater was really impressed with how quickly and smoothly the VP−728 ProScale™ handled switching all of the inputs. There wasn’t a single hiccup.”
Pete Putman | AV Consultant, ROAM Consulting LLC

The glamour of the Oscars made a red carpet appearance at the Ambler Theater in Ambler, PA, thanks to the help of the Kramer VP−728 ProScale™ Digital Scaler/Switcher, Kramer PT−571/PT−572+ DGKat™ twisted pair transmitter/receivers and Kramer DGKat twisted pair cable. The annual Oscars party at the non−profit, community−based movie theater welcomed hundreds of guests for pre−awards show activities and the Oscar broadcasting high-definition splendor.

When planning the party, executives at the Ambler Theater hoped to show the Bravo “red carpet” pre−Oscars HD telecast, the live Oscar broadcast, the Ambler Theater’s Oscars poll and live event announcements and raffle winners on all three of the theater’s screens. They also wanted to broadcast the Awards show in the theater lobby. The theaters already had high−brightness LCD projectors and a digital cinema server with HDMI output.

A/V technology consultant Pete Putman knew the event would require seamless switching capability to achieve all goals. He recommended Kramer equipment for the job. “The event required a switcher that could communicate easily with the different brands of equipment already in the theater and run it at a resolution of 1280x720p/60,” Putman said. “The Kramer unit is well−known for its flexibility and ability to deliver stunning picture quality.”

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“The event required a switcher that could communicate easily with the different brands of equipment already in the theater and run it at a resolution of 1280x720p/60. The Kramer unit is well−known for its flexibility and ability to deliver stunning picture quality.”
Pete Putman | AV Consultant, ROAM Consulting LLC

Using the Kramer VP−728 ProScale™ Digital Scaler/Switcher and Kramer DGKat PT−571/PT−572+ twisted pair transmitter/receivers, Putman achieved the necessary switching capacity for all of the sources. The twisted pair of equipment was connected to the off−air tuner and cable box for the pre−Oscar show, the digital TV receiver that carried the Academy Awards, the laptop computer for the Ambler Theater’s polling results and the HD camcorder that was recording the live party announcements. The camcorder, located in an upstairs conference room, was connected through 100 feet of Kramer DGKat twisted pair cable for a crystal−clear signal.

To show the Awards broadcast in the theater lobby, Putman added a second Kramer ProScale Digital Scaler/Switcher to feed an off−air HD720p signal mixed with graphics and video clips from a notebook computer to another Sanyo LCD projector. The mix created an attention−getting show on a 92−inch screen for guests strolling through the lobby area.

“The team at the Ambler Theater was really impressed with how quickly and smoothly the VP−728 ProScale™ handled switching all of the inputs,” Putman said. “There wasn’t a single hiccup.”
The Kramer Electronics equipment earned its own award of satisfaction at the Ambler Theater Oscars party.

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Kramer CORE™ Products at Heart of First All−Digital Main Event Entertainment™ Building

“No one had a big enough switcher to send video from the satellite receivers to all the TVs. Kramer was the only one who could handle it at the required resolution.”
Tim Boyd | CEO, SAVE Electronics

The newest Main Event Entertainment™ facility in San Antonio, TX, boasts the company’s first fully digital AV infrastructure center, powered by Kramer CORE products. In its tenth location, Main Event Entertainment continues its innovative concept of bowling, laser tag, obstacle courses, arcades, pool tables and food and beverage offerings all under one roof. The newest center adds a rope course and a Bowling Music System, along with a digital sight and sound experience.

Designed and installed by SAVE Electronics, a local professional electronics design and integration company, the San Antonio complex features 35 big-screen TVs ranging in size from 47 to 70 inches, as well as 11 WXGA projectors. Bowlers in the 22-lane bowling alley enjoy programming on 11 screens that span two lanes each. Music videos, advertising and programming are transmitted from six digital satellite receivers, six digital signage PCs, and five laptop connections.

According to Tim Boyd, owner of SAVE Electronics, who has been designing complex AV systems for over 30 years, the San Antonio location is the first of its kind, with a completely digital AV electronics system. It required switching equipment that could handle both the heavy source volume and be expandable for the future. “No one had a big enough switcher that would send video from the satellite receivers to all the TVs. Kramer was the only one that could handle it at the resolution we required,” Boyd said. “The system lets us send anything, anywhere throughout the building.”

Designed to be complete end-to-end solutions, the Kramer CORE products handle any Pro AV signal type and allow for easy future expansion.

The very nature of the Kramer CORE products fit the requirements for the Main Event Entertainment application. Designed to be complete end-to-end solutions, the Kramer CORE products handle any Pro AV signal type and allow for easy future expansion.
SAVE Electronics used two Kramer CORE VS−3232D matrix switchers. The modular chassis matrix switchers can be populated with input and output boards with four inputs or four outputs per board. The Main Event Entertainment system in San Antonio is populated with a total of 12 HDCP-compatible DVI input cards and 12 HDCP-compatible DVI output cards making it capable of distributing 48 sources to 48 displays. Forty Kramer PT−571 and PT−572 DGKat™ technology twisted pair transmitter/receivers for HDMI signals, six Kramer TP−581T and TP−582R HDBaseT™ transmitter/receivers for HDMI signals, and six Kramer WP−121 and TP−122 wall plate transmitter/receivers for computer graphics video signals convert the various sources to HDMI for long−distance routing around the facility. Six Kramer VP−434 ProScale® Digital Scalers and 20 Kramer VM−2HXL 1:2 distribution amplifiers for HDMI signals are used to scale the video to a uniform resolution and distribute it to every display. A Kramer VS−1616A 16×16 audio matrix switcher handles the audio signal routing in the system.

One of the challenges faced by the installation team was the different native resolutions of the displays – native 1280×800 for the projectors and native 1920×1080 for the flat panel displays. To get the best and most uniform image on all displays, the team kept in mind that the DirecTV receivers would be the most frequently used source. After capturing the EDID (extended display identification data) from the displays that contained all native display resolutions, they chose the best common resolution for all the displays. The result was a crystal clear, clean image on every screen.

The system also uses Kramer power supplies, rack mounting kits and over 16,000 feet of Kramer DGKat™ cable. The switchers and sources are all housed in a dedicated control room on the building’s second floor. Boyd said the longest single cable run is about 330 feet, and the digital image on that display is as clear as those only 20 feet away.

Main Event Entertainment plans to upgrade and retrofit its other nine locations as they become the leader in completely digital AV entertainment systems.

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“We used the training facility for a management seminar and were amazed at what it can do.”
Maynor Schott | Fire Chief in the County Seat of Springfield

When the officials of Robertson County, Tennessee, planned a new 911 Emergency Command Center, their ideas called for a dual-purpose system: information sharing and a communication base for emergency personnel. Kramer and Sierra Video responded to the call.

Working with a local audio/video systems integrator, Robertson County officials designed their new emergency communications hub and training facility. “We wanted to have a secure place for local government representatives and emergency management personnel to come and share information and make decisions for the community during a crisis,” said Elvis Wilson, Robertson County 911 System director. “The space also needed to be multi-purpose to support use on a regular day.”

Fingerprint recognition is required to enter the secured facility, and the walls throughout the building are 12-inch thick reinforced concrete. Inside, two rooms house the advanced electronics equipment that enables efficient communication. A dispatch center takes incoming calls and routes them to the appropriate emergency department – fire, police, or EMS. An 18-seat training room boasts 16 computer connections routed to a Sierra Video SierraView™ multi-viewer and dual 60-inch flat panel screens. Emergency representatives can connect their laptops and share data on the left screen with others in the room to help expedite decisions in emergencies. The second 60-inch flat panel provides the ability to monitor reports from up to four local and national television news outlets simultaneously on a multi-screen display.

Routing the video and audio behind the scenes are Kramer and Sierra Video products: a Kramer 16×8 RGB HD router (VP-1608), a Kramer 6×6 DVI switcher (VS-66HDCP) and a Sierra Video 32×1 audio router (3201S). A Kramer video switcher/scaler (VP-728) manages signals from the lectern and outputs information to a Smart device. An intuitive touch-screen interface controls the entire system.

A Kramer video switcher/scaler manages signals from the lectern and outputs information to a Smart device. An intuitive touch-screen interface controls the entire system.

Maynor Schott, fire chief in the County Seat of Springfield, was among the first to experience the new Emergency Command Center’s system. “We used the training facility for a management seminar and we were amazed at what it can do,” he said. “It took five years to get the funding and the plans in place, but the end result is simply amazing – that’s the only word to describe it.”

Emergency responders are being trained on the system so they are prepared to use it in case of emergency. “The system is easy to use because of the controller,” said Wilson. “The Kramer and Sierra Video products are great equipment at a great price.”

“Robertson County is among the first of Tennessee’s 95 counties to create a new 911 Emergency Command Center using their own financial bonds,” said Police Chief Mike Wilhoit. The Center will serve more than 62,000 county residents in emergency preparedness. 

They can be confident that the Kramer and Sierra Video system will respond – every time.

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“They have been extremely pleased with its ease of use, and they are excited at the upgrade potential of the system as they continue to grow.”
Mary Hood | CEO, Digital Roads Incorporated

Nestled among the mountain peaks and tall buildings in Denver, CO, is a new training center that is home to one of Sierra Video’s most powerful switching technologies, the Viper 6464V5.
A learning center for one of Colorado’s major energy companies, the facility boasts five training labs with state-of-the-art electronic presentation systems. Visitors enjoy video and graphics showcased on dual projection screens and distributed through the presentation system.

According to Mary Hood, CEO of Digital Roads Incorporated, the professional audio/video installation company, the Sierra Video Viper 6464V5 routing switcher was the ideal choice for this system because of its bandwidth and reliability. “We were able to design a system that was all HD video (RGBHV) using the Viper to meet the customer’s needs and budget,” added Hood. Because of its modular configuration, the Viper will accommodate system growth, up to 64×64 in each frame. Hood noted that as the high-definition standard grows, the company will be able to expand easily with the Viper at the heart of the system.

The Viper resides in a nearby control room in a rack configuration, along with several Kramer audio and computer graphics video distribution amplifiers—the VM-3A, VP-200xln, and VP-3xl. The DAs and all sources, including VCRs, DirecTV receivers, DVDs, PCs, laptop and desktop computers, IP cameras, DVD changers and audio equipment, feed into the Viper and can be switched to any of the displays throughout the center.

“We did extensive training with the technology team at the client’s location to help them get comfortable using the system—they have been extremely pleased with its ease of use, and they are excited at the upgrade potential of the system as they continue to grow,” Hood stated. The Sierra Video Viper routing switcher has indeed taken training and high-definition video to new heights in Denver.

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“Moving signals from room to room quickly is important in this application, and the scalers allow rapid signals at high quality. The ‘hub and spoke,’ configuration allows for expansion possibilities, and the system has proven top-quality and reliable.”
Hardy Morris | Account representative, PCS

After Hurricane Ivan destroyed much of Florida’s Pensacola Naval Air Station (NAS) in 2004, this Navy base began its quest to rebuild its Wings of Gold. Two years later, one of its finished products is a conference facility that features high-speed audio/video communications with improved quality and signal routing, a user-friendly interface, and a remarkable feeling of high technology.

At the controls: Kramer and Sierra Video Systems products. Providing the necessary mix of quality, versatility, and value, the Kramer and Sierra Video products are the heart of the Pensacola NAS conference facilities network.

While Pensacola NAS serves as the launching pad for the flight training of every Naval Aviator, graduating more than 30,000 students each year, it also has 15,000 employees requiring meeting space for everything from training to classified briefings.

The new conference facility is used by military personnel, civilians, Department of Defense officials, and various Federal Government employees. Pensacola NAS communication specialist Gabriel Walker was charged with replacing the weather-damaged rooms. His ideal system included scalers and switchers in every room that would provide enough features and inputs to handle digital video signals and at least three different video sources. Working with Professional Communications Systems (PCS), a Florida-based professional audio/video designer/integrator, Pensacola NAS rebuilt a seamless system that features the Kramer VP-724DS ProScale™ scaler/switcher in each of the 11 conference rooms. The machines offer both multi-standard video to RGBHV scaling and multiple-input switching capabilities. The system also includes 28 VP-200NA distribution amplifiers for computer graphics video signals and stereo audio signals throughout the building.

The Sierra Video Systems 3232V5S RGBHV 32 x 32 Matrix Switcher links all the rooms together in the central control room, enabling signals from DVD and VHS players, computers, laptops, cameras, and satellite video to be distributed back to the conference rooms. Signals can be routed between rooms and each room offers videoconferencing capability. PCS installed an AMX touch-screen control system in the central command center, a Symetrix audio system, and Pelco video cameras, all interwoven through the Kramer and the Sierra Video Systems switchers and scaler/switchers.

Hardy Morris, the account representative at PCS, noted that the Kramer scaler/switchers met the government’s technical requirements, provided a high-quality image, and allowed a smaller, yet expandable, matrix switcher in the application. The scaler/switchers in each room digitally reprocess the signals and regenerate the video at a higher line and pixel rate format, providing native-resolution video for LCD, DLP, and plasma displays. They also act as glitch-free switchers for easy component switching. In addition, thanks to the scaler’s seven inputs, classified briefings are possible in each room by maintaining a dedicated line for classified information.

“Moving signals from room to room quickly is important in this application, and the scalers allow rapid signals at high quality,” Morris said. “They also eliminate the blue screen when switching sources.” After working for nearly two years to accommodate funding and construction schedules, Morris says the final product has met all of their goals. The ‘hub and spoke’ configuration allows for expansion possibilities, and the system has proven to be top-quality and dependable. “The Kramer seven-year warranty was also important because it eliminated any issues resulting from construction delays – the customer still had the complete warranty on the product,” said Morris. With Kramer and Sierra Video Systems technology aboard its conference facility, Pensacola NAS will continue to soar as the premiere flight center for Naval Aviation.

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“The client needed high resolution for computer signals, as well as the ability to manipulate the software almost instantaneously. Sierra Video was able to deliver all these things in one product that could meet our deadlines.”
Todd Nelson | CTS, Mission Electronics

Visitors to Sprint Center in Kansas City, MO, are greeted by a 70-foot media wall featuring interactive audio and video technology. They can experience music, video, and games through a touch-screen panel, gesture recognition technology, focused audio, or even their own cell phones.

To create this incredible interactive experience for the more than one million guests visiting the Center annually, Sprint enlisted a team of display designers, creative agencies, interactive software developers, and audio/video integrator Mission Electronics. Mission Electronics knew they needed to offer the Sprint management team a reliable system that provided versatility, room for growth, and consistently high-quality images. Their choice for managing the video sources: the Sierra Pro XL™ 3232V5S wideband video and stereo audio routing switcher.

The Sierra Pro XL router was chosen for its performance and reliability. In addition, both Mission Electronics and Sierra Video met the challenge of a tight installation time frame – less than two months to the live date. According to Todd Nelson, certified technology specialist (CTS) at Mission Electronics, “When we were designing the system, we specified a router with a 1920×1080 bandwidth and RS232 control. The client needed high resolution for computer signals, as well as the ability to manipulate the software almost instantaneously. Sierra Video was able to deliver all these things in one product that could meet our deadlines.”

“The capability of the display is constantly changing, so a reliable, versatile router is one of the most important components in the system.”
Todd Nelson | CTS, Mission Electronics

Mission Electronics designed an audio/video system that feeds a 4×4-foot video cube consisting of 16 40-inch LCD displays, plus two additional displays on either side of the video wall. The Sierra Pro XL router is rack-mounted behind the video wall, along with the APC network control and the audio processing unit. The router currently sends signals from eight different computers, but its 32-output capacity allows further expansion as the system changes.

Mission Electronics powered the system with Scala 5 networked software for digital signage and interactive technologies. The displays can showcase a single picture, 16 different pictures, or even blocks of four pictures by using the Sierra Pro XL router to direct the various signals. Visitors to Sprint Center, the nation’s number five arena, have enjoyed interactive games with 3-D infra-red motion-sensing technology, multizoned audio that changes as the content on the screens change, and games and live data feeds controlled by phone commands.

“The Sierra Video router runs 24 hours a day, seven days a week, and has never had a hiccup,” Nelson said. “The capability of the display is constantly changing, so a reliable, versatile router is one of the most important components in the system.”

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“We chose Kramer HDMI matrix switchers for their reliability and functionality. We use various Kramer products in our installations because we know they will perform to our customers’ high standards.”
Dan Levine | CEO, CytexOne

Audio and video entertainment in any room, any time, at the touch of a button – linked to a central system that also controls lighting, security cameras, and wireless computer network systems. The controller: Kramer VS-66HDMI 6 x 6 Matrix Switcher.

When the owner of an eight-room Manhattan penthouse wanted an easy, intuitive system for his family’s home, CytexOne, a New York-based technology integrator, created a personalized, computer-automated system. “The owner wanted a simple-to-operate system that was hassle-free for his family,” said Dan Levine, CEO of CytexOne. “By using a central controller to manage everything, switching sources in each room becomes easy.”

In this detailed installation, audio, video, computer, and security systems are tied together from an equipment rack in the home. In the equipment rack are four Kramer 6 x 6 HDMI Matrix Switchers, creating a 12 x 12 matrix. The switchers distribute video to a 50-inch plasma display in the living room, a 60-inch plasma display in the listening room, and two 26-inch LCD displays in the bedrooms. Other rooms are also pre-wired for video. The switchers allow viewers in any room to watch their choice of video sources, which include two cable TV tuners, BluRay/DVD, a computer, and an Internet movie rental component.

“We chose Kramer HDMI matrix switchers for their reliability and functionality,” Levine said. “We use various Kramer products in our installations because we know they will perform to our customers’ high standards. There are very few manufacturers that have such a wide range of offerings.”

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“The Kramer products met our different needs as we upgraded the facility. I found them simple to use and program right out of the box.”
Joe Gambrell | Communications Center Systems Coordinator, Tampa International Airport

When technology officials at Tampa International Airport wanted to upgrade the Communications Center and Incident Command Center, they chose Kramer. Described as “the Communication Center for the future,” the 2,100-square-foot facility is the heart of the airport.

The Communication Center’s duties include dispatching police, fire, and emergency medical, 911 and airport operations, and monitoring fire alarms, access control systems, and closed caption television (CCTV). The Center also monitors and controls the airport’s automated transportation systems, comprised of monorails, shuttles, elevators, and escalators. Its dispatchers are trained to handle incoming calls and to provide the best possible customer service operations for the 19 million passengers utilizing the airport annually. Throughout the Communications Center, Kramer products distribute and manage video between various computers and television monitors, giving dispatchers clear views of all airport areas. Joe Gambrell, Communications Center Systems Coordinator at Tampa International Airport, chose Kramer products for their flexibility and reliability. “The Kramer products met the different needs we had as we upgraded the facility. I found them to be simple to use and program right out of the box,” Gambrell noted.

At Tampa International Airport, Kramer products keep the communications signals soaring.

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Gulfstream Park Installs Kramer Electronics and Sierra Video Solutions for HD Video Installation

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“We recommended Kramer and Sierra Video for this project, knowing their quality, durability, and value proposition. The race track was looking for a specific feature set. Kramer and Sierra Video products fit the bill, outranking competitors in installation product variety and meeting nearly every application dead-on.”
Serge Pieters | AV National Product Manager White Radio’s

Jerusalem, Israel – February 11, 2007 – Kramer, a worldwide supplier of innovative and reliable signal management products, today announced its participation in an extensive HD video project at Gulfstream Park, a state-of-the-art horseracing and entertainment facility, located in Hallandale, Florida. The brand-new park offers simulcast betting, racing replays, and sports TV, distributing high-definition video of the events on over 350 large-screen plasma displays and 11 giant LED and rear projection displays throughout the site. Facility architects and designers deployed an extensive suite of Kramer and Sierra Video products to meet the project’s complex signal management needs.

Owned by Magna Entertainment Corp., North America’s number one operator of horse race tracks and one of the world’s leading suppliers of simulcast racing content, Gulfstream Park is the prototype facility in Magna Entertainment’s mission to restore thoroughbred racing to the top of the betting industry. While the park features amenities such as restaurants and luxury suites, the technological achievement was in its world-class audiovisual system, designed by system contractor Westbury National Show Systems.

Installed over a three-month period, the audiovisual system was designed to give patrons the upscale, exciting atmosphere of a Las Vegas casino. “We had a client with a great vision,” said Brock McGinnis, Sales Manager of Westbury National. “We helped prepare them for the next 20 years technologically.” Requirements such as satellite video conversion to computer graphics video, signal flow, and signal management characterized the challenges of the proposed system.

With input from racetrack architects The McCasey Group and White Radio, the Canadian market leader in audio and video product distribution, Westbury National specified Kramer and Sierra Video products for routing the high-definition video throughout the three-story building to outside displays. Over 700 Kramer and Sierra Video products, including matrix switchers, scalers, distribution amplifiers, twisted pair transmitters, and receivers were used for the project.

“We recommended Kramer and Sierra Video for this project, knowing their quality, durability, and value proposition,” said Serge Pieters, White Radio’s National Product Manager for Video Products. “The race track was looking for a specific feature set, and Kramer and Sierra Video products fit the bill, outranking competitors in installation product variety and meeting nearly every application dead-on.”

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Video and audio signals come from several sources: satellite streaming, satellite TV, and cable TV decoders, as well as DVD players, but share a common ground: composite video, with stereo audio.

Customer

Play City

Industry

Entertainment

Play City sport bets and entertainment centres open their doors to the public in general and call players to great amusement and entertainment, in their three modalities: Traditional Bingo, Electronic Slot Machines, and Sports Bets. In these centres, video and audio distribution are primordial for the event and Kramer/Sierra Video Systems handles successfully the package. The request is to distribute, in a dynamic, simple, and reliable way, the audio and video signals incoming from 32 sources, to be distributed to between 76 and 96 plasma display screens, depending on the surface of the several sites, which oscillates between 3000 and 5000 m2.

Play City is a new concept in adult entertainment centres, based upon sports bets and electronic slot machines. Still, when it comes to vital video and audio signal distribution, decision-making is no longer a question of games: the devices required must be robust, reliable, affordable, and professional. This is why Play City does not play around with its distribution infrastructure and relies on Kramer/Sierra Video Systems for these tasks. We know how important and critical the video/audio signal presence and quality are on this type of site. This is why Play City receives top-of-the-line quality equipment.

Video and audio signals come from several sources (satellite streaming, satellite TV, and cable TV decoders, as well as DVD players), but share a common ground: composite video, with stereo audio. Signals must be distributed into several main areas:

  1. Electronic Slot Machines Section
  2. Bar
  3. Sport Bets and Racers
  4. VIP rooms (which may vary from 1 to 3)
  5. Lobby
  6. Traditional Bingo (Numbers)

These sections may be divided into several areas for audio distribution.

Requirements are standard for high-resolution composite video signals, distributed throughout a network that runs along with power lines, light dimmers, ballasts, spot lighting, neon lines, etc., which radiate a large amount of ESI and EMI (electrostatic and electromagnetic interferences). The video routing switcher used is a Sierra Video Systems Yosemite 32X96 Model 3296VR, with both a control processor board and power supply redundancy. This equipment offers hot-swappable board capability, which ensures seamless operation even in the infinitely remote event of a board failure. The Yosemite line offers this thanks to its broadcast and professional video features, with a bandwidth superior to 100MHz for composite video. Audio spectrum transparency is also a must, with a bandwidth between 20 Hz and 20 kHz. To ensure audio distribution to each and every section, with professional audio quality, we used Sierra Video Systems audio routing switcher Tahoe 3232AAR Model, a 32X32 balanced stereo audio routing switcher, with a redundant power supply. Control to this matrix comes directly from the Yosemite routing switcher and can be configured as an audio-follow-video (AFV) or breakaway. For this specific application, an audio breakaway is configured. Control is provided separately in two remote control panels, one for video and another for audio. Because of the higher complexity and diversification of sections in the audio distribution, a Sierra Video Systems SCP-224 remote control panel is used for the audio routing switcher, and an SCP-112 is used for the video routing switcher. Both panels are multi-level and customizable, ensuring the end user the most ease to use control panels available, thus making the routing operation both simple and intuitive. Neither technical background nor experience is required to operate Sierra Video Systems routing switchers, once the panels are customized and configured. Such is the degree of intuitive control they provide.

Besides the audio signals coming in from the AV sources, a variety of microphone and external stereo audio signals can be fed into the router, such as iPod music players and Discmans. Microphones are scattered along the whole complex, both in fixed positions and wireless microphones. Incoming signals must be fed as balanced audio, at line level, to the router. This is accomplished using Kramer devices, such as the VA-4, an audio pre-amplifier, used to raise microphone signals to line level, as well as WA-21, to balance audio signals coming from portable audio players, such as iPods and Discmans). The idea is to allow customers to connect their portable devices and listen to music playlists. Audio distribution is complemented by using several of Kramer’s VM-1110xl audio distribution amplifiers, whose quantity varies between 3 and 9, depending on the size of the Play City site they are allocated in.

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