22 DAA2 & DAX — P/N 53265:A1 8/24/2011
DAA2 Digital Audio Amplifiers DAA2 Installation
• Review the installation instructions in this section.
Locate the cabinet backbox on a surface that is in a clean, dry, vibration-free area. The top should
be located so that all operational buttons, switches, displays, etc. are easily accessible and/or
viewable to the operator - usually no more than 66 inches (1.7 m) above the floor. Allow sufficient
clearance around the cabinet for the door to swing freely, and for easy installation and maintenance
of equipment.
Follow the instructions below.
1. Mark and pre-drill two holes for the keyhole mounting bolts. Install bolts.
2. Select and punch open the appropriate cabinet knock-outs. (For selection guidelines, see
“UL Power-limited Wiring Requirements” on page 40.)
3. Using the keyholes, mount the backbox on the two bolts.
4. Mark the location of the two lower holes, remove backbox and drill the mounting holes.
5. Mount the backbox over the top two screws, then install the remaining fasteners. Tighten
all fasteners securely.
6. Feed wires through appropriate knockouts.
7. Install DAA2 according to the following instructions before installing the door per the
CAB-4 Series Cabinet Installation Document.
The DAA2 fills one row of any EQ or CAB-4 series cabinet.
EQ Series Cabinets and Doors
The EQ Series cabinets come in B, C, and D sizes. The row spacing allows DAA2 amplifiers to be
mounted in any row, and the doors are equipped with ventilated panels for heat dissipation. The cabinets
were designed so that all DAA2 boards can be used in any or all cabinet rows. Batteries must be
accommodated in separate cabinets or battery backboxes.
The following models are available:
• EQCAB-D4 - Four rows. Accommodates four DAA2s. Consists of P/Ns EQBB-D4 (black
backbox) and EQDR-D4 (black door with ventilated panels).
• EQCAB-C4 - Three rows. Accommodates three DAA2s. Consists of P/Ns EQBB-C4 (black
backbox) and EQDR-C4 (black door with ventilated panels).
• EQCAB-B4 - Two rows. Accommodates two DAA2s. Consists of P/Ns EQBB-B4 (black
backbox) and EQDR-B4 (black door with ventilated panels).
WARNING:
Wear a static discharge wrist strap to prevent equipment damage.
NOTE: Digital amplifiers can produce significant heat during their duty cycles. Different cabinets
can handle different amounts of heat. Refer to the Heat Dissipation Calculation document (53645)
to determine dissipation figures for the equipment you are installing, and match it with an
appropriate cabinet.
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