The result of this innovative project has been the implementation of a multifunctional room, with versatile spaces and advanced audiovisual systems, to cover any need of the company, from a small event to the projection of content with surround sound.

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With the aim of creating a modern and versatile space with the latest technology, BGL (Sequoia Group) has designed and implemented the installation and execution of all the audiovisual systems of the auditorium of the new headquarters of the Redwood Group, located in the Madrid town of Tres Cantos, which is home to Europe's first production centre Netflix.

This space, with the capacity to 267 adapted for people with reduced mobility, has ample access in the form of a hall, in order to create a multifunctional room that could cover any need at Sequoia Studios, from small event to the projection of content with surround sound.

To this end, the installation of a series of elements of the latest generation of video has been provided, sound, lighting and projection, given the varied use that was wanted to be given to the auditorium, with the integration of two independent subsystems to function as an auditorium itself or as a cinema screening room.

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Video and distribution technology

For the video part it has been decided to use the SDI-4K signal as the basis to offer the best possible quality. To do this, a matrix has been integrated Blackmagic Smarthub 12G, which has forty inputs and equal number of outputs, for the distribution of all signals that reach the control.

To this are added converters and decoders to ensure that the signal that each playback element should receive, recording or viewing is correct and has no loss of quality.

To help the entire distribution system, and thinking that a signal will arrive that has a different format than allowed, a Blackmagic Teranex 12G converter has been integrated, equipped with high-quality signal processing, to ensure full compatibility with the audiovisual system.

Three robotic cameras have been added to the event Panasonic AW-HE130, with AW-RP120 IP control, providing sharp images of the entire auditorium. The signal mix features a Blackmagic ATEM Television Studio 4K, incorporating eight SDI inputs, all of them with 12G scaling, with 1 M/E for realization with all expected signals, cameras, Pcs, videoconference system, Etc.

As a perfect complement, control has a system of playout 4K Metus Player for the playback of multiple file formats (MXF, ProRes, MP4, Mpg, ...) and up to 4K resolution; an intake system and streaming Metus Ingest, for recording and encoding to the Internet of any signal that reaches the control, along with a Blackmagic HyperDeck 12G SSD recorder as a backup.

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4K projection and video conferencing

As for video conferencing coverage, BGL has integrated a TalkShow Newtek, to have a connection Skype within the realization system and use it as one more video source within the event.

Through the Skype TX app, the operator can make calls, also by voice with the remote user and have full control of all communication. It has SDI input and output, as well as Dante audio inputs and outputs and/or analogue.

With this same vision, the auditorium features a Panasonic PT-RQ22K laser 3DLP projector, that offers 21.000 central lumens, supports 4K resolution, contrast ratio 20.000:1, geometric fit, Etc. In addition, thanks to the high frame rate (240 hz) to view content, this equipment provides excellent and sharp moving images.

To complete the projection subsystem, an ET-D3LEW60 zoom optics from this same manufacturer have been included. The projection screen has dimensions of 6.22×3,50 metre, high-reflection (2,4) SilverLux 3D model, with sound drilling and valid for playing polarized 3D systems.

HDBaseT technology is also present in sequoia's new auditorium, both to send PC signal from the stage through the PC Atlona AT-HDR-EX70C, that allows the sending of 4K signal up to 70 meters with CAT6a data cable. This protocol is used to send backup signal to the projector, because this model includes Panasonic's Digital iLink interface.

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Led lighting

Led technology, both in fresnel and in cuts, has been the option to light up the auditorium. Six units of the SuperLed F6 model have been integrated to do this Desisti, including a 120w Led array, 3,200K and controllable via DMX protocol.

The front lighting is completed with four clipping projectors Work Pro Multiprofile Led W3, with 200W and 3200K Led lamp, that offer an adjustable beam angle between 17 and 50 degrees, also controlled DMX. For rear lighting, The F4.7 model of Desisti has also been chosen, with a 60W lamp.

Lighting control is done with a Work Lighshark LS-1 table, with an intuitive and ergonomic control surface, four encoders, ten faders and master, with color display, which combined with the RGB button set offers a complete platform to handle amazing shows.

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Independent subsystems

Given the varied use that was wanted to be given to the auditorium, two independent subsystems have been integrated to function as an auditorium itself or as a film screening room. The whole microphone is Shure, with the ULXD model, wireless headband and handheld, for optimal sound quality.

For the sound table a team has been chosen Soundcraft SI Impact 32 entries and 16 Outputs, Dante and Madi interfaces to ensure interconnection with other elements of the auditorium, like the stage's connection box, which adds another sixteen inputs and eight outputs.

For those events where this sound table is not required, a Shure SCM820 audio system and automatic mixer is available, with eight MIC/Line inputs, that performs the microphones of an event, no need for a sound operator.

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As an audio processor it is used Bss BLU100, with twelve inputs and eight analog audio outputs and multiple processing effects. In independent design, two BLU100 units have also been integrated, one of them serves the microphone and the sound table, and the second is used entirely for the film system, with power stages Crown.

Continuing with the two operating modes, the auditorium incorporates two PA's CBT70J and four AC26 stage listeners JBL, while for 'cinema 7.1' mode two biamplified C222 ScreenArrays have been included, as well as 4642A subwoofer (on the back of the projection screen), also from this manufacturer.

This system is completed with sixteen monitors 8320 on both sides and at the back of the auditorium to provide the surround environment of the system 7.1. Protection of all equipment is trusted by UPS Riello, both in the video system rack and in the audio rack.


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by • 28 May, 2019
• section: fully, audio, Case studies, control, outstanding, STOOD out in depth, HIGHLIGHTED Case Study, Signal distribution, lighting, business, production, projection, networks, Streaming Media, Telepresence / videoconference