dB Technologies DVA KS20 Manuale d'uso rapido - Pagina 3

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First switch on:
The double DIGIPRO
G3®
controlled by a powerful DSP. All the connections and
controls are in the rear amplifier control panel:
1 – Xover switch (for the choice of frequency
cutoff)
2 – Output mode switch (Link or Xover mode)
3 – LEDs (Limiter, Signal, Mute/Prot)
4 – Service data mini B-type USB port
5 – Subwoofer level rotary encoder
6 – Subwoofer Setup switch (Phase) and BCD
rotary switch (Delay)
7 – Balanced inputs
8 – Balanced outputs
9 – Auto range mains input and mains links
10 – Mains fuses
WARNING
The fuse is factory setted for 220-240 V operation.
If it is necessary to change the fuse to 100-120V range:
1.
Disconnect the speaker from any cable
2.
Wait 5 minutes
3.
Substitute the fuse with the correct one supplied
DVA KS20
www.dbtechnologies.com
amplifier of DVA KS20 is
Use only cables with
Neutrik®
a)
Once you have properly set up the desired
configuration (see also the DVA KS20 complete user
manual and accessories instructions for further
information), connect the audio input (mono) or
inputs (stereo) (7). Connect the output (mono) or
outputs (stereo) (5) and consequently set the
Subwoofer level to 0 dB in the right position (5).
b)
Set properly the Outputs Mode (2), ("Link" in
case of direct link connection, "Xover" in case the
output is sent to another speaker or speaker array). If
you have selected the "Xover" Mode with the related
switch (2), select the correct frequency with the Xover
switch (1).
c)
Choose the Subwoofer Setup (Delay and
Phase) (6) to obtain the proper behavior. For example,
in the 3-elements cardioid configuration, set the
"Phase" to 180° and the "Delay" to 3.5 mSec. For
another example, in Endfire configuration, with two
DVA KS20s front panels at the distance of 1,35 mt, let
the "Phase" to 0° value, and set the "Delay" to 4.0 ms
in the most forward subwoofer.
N.B. Please note that these values are purely for
information and they can depend on different setup
variables.
Cardioid configuration
Endfire configuration
d)
Connect the power link (9) to potential other
DVA KS20s or line-array elements, if needed. Then
connect the power supply (9) to the module. The
"Ready" LED turns on, signaling the proper power
connection. Turn the Subwoofer level (5) to the desired
value. The "Signal" LED (3) starts blinking at the
presence of audio signal (greater than -20 dBu).
For further information, download the complete user
manual:
www.dbtechnologies.com/EN/Downloads.aspx
or scan the QR code.
Rev 1.1 cod. 420120234Q
connectors!