CA 4D
|4 CHANNEL POWER AMP
CA 4D
|OPERATING INSTRUCTIONS
11 |
P a g e
OUTPUT MUTE SWITCHES
A very practical feature when running larger sound systems are the 4 mute switches - one per
channel – on the front panel of the power amplifier. The red LED indicates the MUTE is ON or
activated. Each amplifier output can be isolated. There is also a green "signal present LED" that
indicates any audio source above - 30dB. In the KS Audio F MOD digital controller card, mute
switches are available in the selected program. In this case “ACTIVE” means that the output is
activated, not that the MUTE is active.
POWER TRANSFORMER
If you run very long power line feeds, especially when using different power circuits, a balancing
power transformer should be utilized to avoid ground hums. This will also help to avoid electro-
magnetic interference caused by generators or lighting fixtures and dimmer circuits. Please note,
on KS systems, the digital signals always have an input transformer and separate transformer
output built-in.
POWER SUPPLY
The KS Audio CA 4D power amp uses a state-of-the-art, heavy duty and wide-range switch mode
design, with Power-Factor-Correction (PFC) built in. This power supply will accept any AC input
from 96 – 250v, 50 / 60Hz. It is connected via a Blue Neutrik®-PowerCon AC connector with
protective leader.
