Specifications

Chesapeake College Todd Performing Arts Center Auditorium
Audio System Upgrade
March 20
th
, 2015
Audio Systems 27 41 00-21
1. Provide system identification plate as shown below. Plate shall occupy the first available
rack unit in all Audio System equipment racks. If more than two (2) racks are positioned
together, one (1) plate for every two racks is acceptable. Product: Covid # 1R0001-BA-X-
A-CT.
2. All equipment shall be firmly secured in place unless requirements of portability dictate
otherwise. Unless granted specific permission by the Owner, install and secure all boxes,
equipment, etc., plumb and square.
3. Fastenings, mounting brackets and supports shall be adequate to support their loads
with a safety factor of at least eight (8). A safety chain or cable will be tied to all
equipment suspended from above.
4. In the installation of equipment and cable, consideration shall be given not only to
operational efficiency, but also to overall aesthetic factors.
3.2 AUDIO CABLE INSTALLATION
A. All cables, regardless of length, shall be marked with wraparound cable markers at both
ends. There shall be no unmarked cables at any place in the system, inclusive of existing
cabling to be re-used. Marking codes used on cables shall correspond to codes shown on
“as-built” drawings and/or run sheets. The labeling and numbering system will be
coordinated with the Owner.
B. All wired microphones shall include a 30ft. patch cable with heavy-duty jacket and XLR
connectors.
C. Loudspeakers operating at 8 ohms shall be installed with 12AWG cable as a minimum size/
diameter. Confirm existing cabling to be re-used meets this standard.
D. Wall plate and floor box input/output panels shall be installed with audio line drivers on runs
exceeding 35ft.
E. All cabling shall be neatly strapped, dressed, and adequately supported. Any exposed
cabling shall be neatly enclosed in a protective covering.
F. Terminal blocks, boards, strips, or connectors shall be furnished for all cables, which
interface, with racks, cabinets, consoles, or equipment modules.
G. All audio signal lines shall be balanced at I/O plates. Provide ninety (90) degree connector
adapters for all Audio cabling at custom I/O plates.
H. All cables shall be grouped according to the signals being carried. In order to reduce signal
contamination, separate groups shall be formed for the following cables:
1. Power cables
2. Control cables