Specifications

Technology Upgrade Classroom Audio 28 5350-1
1224_01
SECTION 28 5350 – CLASSROOM AUDIO
PART 1 - GENERAL
1.01 SECTION INCLUDES
A. This section provides specific project and Contractor requirements for audio systems.
B. Parts and labor required for installation and testing of classroom audio and video
components and cabling.
1.02 COORDINATION
A. Coordinate the location of all speakers and the projector with the existing equipment in the
ceiling. Take into account the lights and the other equipment when locating the speakers.
Meet with the owner or their representative on placement of equipment in each room prior to
installation.
B. Speakers shall be installed in the ceiling to cover the most area. Speakers shall not be
mounted to the outside edge of the room or near the edge of the room.
PART 2 - PRODUCTS
2.01 MATERIALS
A. The contractor shall provide equipment as required for a complete audio/video classroom
teaching installation.
B. Any and all baluns, patch cords, interface cords splitters and other equipment shall be
provided and installed to provide complete connectivity.
2.02 AUDIO SPEAKERS
A. Drop Ceiling Speakers
1. Ceiling Speaker (Provide four in each classroom)
a. Two-way speaker system
b. Driver Size: 6.5” driver; 1” tweeter
c. Frequency Response: 40 Hz – 20 kHz ± 6dB
d. Impedance: 8 Ω with Power Handling: 30 W
1. Lightspeed DRQ or equal.
B. Open Ceiling Speakers
1. At certain locations there is a requirement for speakers to be mounted to the open
ceiling. Shall meet following requirements:
a. Crossover frequency: 2940hz
b. White enclosure and grill
c. Frequency response: 91hz-20khz +/- 3db
d. One 1" high frequency driver (2.5 cm) polymer dome tweeter
e. One high frequency horn: 90 (0) x 90 (0) tractrix horn
f. Low frequency driver: one 4" (10.2cm) img woofer
g. Nominal impedance: 8 ohms
h. Power handling: 50 w (200 peak)
i. Sensitivity: 91db @ 1 watt/1 meter
2. Speakers shall be KLIPSCH #AW400 or equal.
C. Classroom Speakers 2
1. Speakers shall disperse the audio to cover the entire room.
2. Provide the ceiling tile bridge for each speaker to support the speakers from the T-bar
of the drop ceiling tile.
3. Round ceiling speakers shall be capable of 70 volt or 8 ohm direct drive distribution.