User manual

audio professional Seite 6
Threshold adjustment.
At the front panel is the display of each LED and the
adjustment controls for the starting point of limitation
applied. Using a small screwdriver the starting point
(threshold set) can be adjusted from -14 dBV to +13 dBV.
If the speakers should be able to handle the full output
power of the amplifier, the limit should be start 1 dB
below the input voltage which is necessary to provide full
output power of the amplifier.
Thus, the full output power is available, but the speakers are
protected from clipping of the output amplifier. Likewise, of
course, is a power limit of a strong amplifier to the load
capacity of the connected speakers possible, and keeping
a certain predetermined volume. As mentioned above, when the indicator light LED begins to
limit the incoming signal. One can thus determine with the help of the adjusting and
monitoring the light-emitting diode limiter action. The factory setting is at +3 dBV. Clockwise
rotation means earlier onset of the limit, counterclockwise means later onset of the limiter.
LIMIT Indication
As soon as the audio input level exceeds the threshold set-level, the LIMIT-LED lights up.
Stereo-Coupled Switch (at the rear panel)
The DS 22S can run in either dual channel mode or stereo-coupled mode. In dual channel
mode both channels operate independently. In stereo-coupled mode the control voltages of the
two channels are switched together. The channel with the higher level controls both channels.
So, the stereo base is always the same. A yellow LED at the front panel lights when the DS
22S is switched in stereo-coupled mode.
NOTE
NOTENOTE
NOTE!
!!
!
The limiter should work only in the upper dynamic range. I.e. to protect the connected speakers
are used. The starting point of the DS 22 is then set correctly when the LED lights up at peaks.
Permanent illumination of the display means, for the proper adjustment of the cutoff point to
high input voltage of eg a mixer.
THRESHOLD ADJUSTMENT