Specifications
Table Of Contents

D ESIGN C ONSULTING
Electrosonic Systems, Inc. Page 3 of 11
Design Consulting DEC100167 www.electrosonic.com
3320 N. San Fernando Blvd. Beverly Hills City Hall Tel: +1-818-333-3600
Burbank, CA 91504, USA Television Production AVC Systems Upgrade Fax: +1-818-566-4923
matrix shall replace the analog switching. Current video displays shall be replaced with
new displays featuring LED backlighting and digital video inputs.
AV Rack Room
The AV rack room currently contains two AV racks, one large, and one small. The
intent is that the small rack be removed, with some of the components, which are
being reused, moved to the large rack. The large rack will require extensive re-work
and cabling to accept the new AVC systems. Some components in the rack shall be
required to remain, although items can be moved around in the rack as necessary. It is
assumed that the re-work of the large rack will need to take place in its current
position, as the rack contains a Whirlwind microphone splitter system, which is to
remain. The AV Contractor can evaluate this and opt to provide a new rack if they so
wish, but must incorporate the microphone splitter system into their new rack on site.
Audio
The existing cabling for speakers and microphones shall be reused. The cabling from
the field terminates in an existing Audio Distribution Box (ADB) in the AV rack room.
The Media Matrix system shall be replaced with a QSC Qsys system. All audio
channels shall be connected to this. The AV rack has an existing Whirlwind
microphone splitter system and audio patch bays – these shall remain connected, with
adjustment to patch bay connections made as required to suit the new system. The
Qsys Core shall be located in the Control Room downstairs, with networked Qsys I/O
Frames used for connections in the Main Chamber AV rack. All Qsys audio input cards
shall be CIML4-HP – High Performance versions.
The microphone control wiring is currently connected to GPIO and TTL connections in
the Media Matrix 8802 devices. This wiring shall be connected to AMX I/O and Relay
circuits in the new system, with new programming in AMX required to copy the
functionality from the current system.
All microphones at the Council desks and Public Podium are to be replaced.
Microphones shall be replaced with current model from Audio Technica, but shall have
XLR base connectors (similar to Room A). New shock mounts shall be provided and
fitted to the existing microphone panels, to accept the XLR type microphones
The current ceiling speakers and desk speakers shall remain, the QSC-CX254
amplifier feeing the ceiling speakers shall remain, but shall be connected to the new
Qsys system via Dataport card/cables. The older Rane amplifier feeding desk
speakers shall be replaced with a new QSC-CX302 amplifier, again using Dataport.
Currently, the two ceiling speakers that are overhead the Public Podium either do not
function, or are mis-programmed in the system. The intent of these particular speakers
is to allow the person standing at the Podium to both hear themselves, and secondly
hear the Council as they talk into their microphones. AV Contractor shall investigate
this small problem, establish whether the fault is the speakers, the amplifier channel,