3
INSTALLATION
The Radio Systems distribution amplifier combines solid state electronics and functional flexibility in one small
package. Two high quality audio op amps provide balanced output and individual gain adjustments of each channel.
Excellent isolation is provided between outputs. Each balanced channel, regardless of level set and load, is
unaffected by the other channels. Audio sources can be routed to multiple locations with various level requirements
and impedances while maintaining the integrity of the signal quality throughout.
The distribution amplifier is available in a single channel, 8 output mono version, or dual channel, 16 output
version.
MOUNTING:
The DA-8 and DA-16 each occupy only 1-3/4 inch of height in a 19 inch rack. To allow for adequate
ventilation, avoid mounting the unit directly above large heat producing equipment such as power amps or power
supplies.
When stacking units, it is recommended that one rack space, (1-3/4 inch), remain open between every three
units.
CONNECTIONS:
The units are primarily designed for balanced inputs and outputs. The input ground is connected to the chassis
and power supply at a single point.
If unbalanced lines are used, tie the unused input terminal to ground. However, do not tie the unused output
terminal to ground. Wire the output between one output terminal and the input ground terminal.
Although the outputs are short circuit protected, operating into less than a 600 ohm load is not recommended.
The input is bridging (high impedance) and will not load down any source. For further details, see the section on using
active balanced circuitry in this manual.
