Specifications

Chesapeake College Todd Performing Arts Center Auditorium
Audio System Upgrade
March 20
th
, 2015
Audio Systems 27 41 00-27
3. All existing cabling is to be tested for compliance with standards and criteria listed in this
Section prior to re-use in the installed system. Replace all cabling that does not comply.
In addition, four (4) portable loudspeakers are to be provided as stage fill loudspeakers,
which will connect to new output connectors at infrastructure provided by the AV
contractor under this contract. The existing Lobby loudspeakers will also be removed
and replaced with high-powered directional ceiling loudspeakers to improve speech
intelligibility and audibility in this pre-function area. The existing loudspeaker system
currently serving the backstage area will remain as installed, and must be operational as
a part of the upgraded system upon completion of the work outlined in this Section.
4. All audio signal routing, mixing, and processing will be controlled through two
complementary system components. The first of these shall be a multi-channel audio
mixer, which will be used for most operator-run mixing applications for performances and
rehearsals. The second, parallel device shall be a rack-mounted audio DSP processor,
which shall be capable of providing users with access to pre-set audio mix configurations
in the event that no operator is present to create a manual mix. All existing audio tie
lines from input wall plates in the Auditorium, Orchestra Pit, and Lobby will be
maintained, and will be re-terminated at the Control Room end for direct connection into
the new audio mixer. Several line level cables will be terminated on TRS-type patch
panels for manual patching of various sources and OFE processors. All patch panels will
be mounted into the specified equipment rack, to be located in the control room for quick
operator access to manual patching.
5. Point-to-point category 6 cabling will be provided between the Control Room location and
existing wall boxes back stage, as indicated on the associated floor plan drawings. This
cabling will be used to support the distribution of multi-channel digital audio, both
through remote input/output modules associated with the primary audio mixer, as well as
personal performer monitoring headphone stations. An eight-channel wireless
microphone system has also been specified for use in this area – coordinate wireless
channel selection with Chesapeake College IT representatives to ensure signals do not
interfere with data network wireless communications. A production intercom system will
also be provided, with both wired and wireless capability, to support discrete
intercommunication between system operators and back stage personnel. On-stage
monitors have been specified for use by performers for self-monitoring. Audio mixes and
signals will be able to be recorded to a hard-disk recorder appliance, and audio will be
able to be played back from this appliance as well. Audio monitoring in the Control
Room will be accomplished through the specified powered studio monitors.
6. All amplifiers and related equipment will be mounted in an equipment rack in the 2
nd
equipment storage area. All equipment requiring manual access will be mounted in the
mixing console specified. The below listed Owner Furnished Equipment is to be
maintained, and re-installed in these equipment racks as shown in the AV series
drawings.
7. System Interconnection: The functional interconnections of the audio, point-to-point
data cabling, and control systems shall be as detailed on the “AV” series drawing sheets
associated with this space.
8. Equipment Layout: The equipment in this area shall be located as detailed on the “AV”
series drawing sheets associated with this space.
9. Owner Furnished Equipment (OFE):