D.A.S. Audio CSA Series - Manual (Page 22)

4
BACK PANEL DESCRIPTION
A) Speaker outputs
T e r m i n a l
c o n n e c t o r s a r e
provided to connect
the
speakers. Both
7 0 V a n d 1 0 0 V
c o n n e c t i o n s a re
available.
More examples on
Appendix D.
B) Inputs
An XLR input is connected in parallel to an XLR
output for each amplifier. For more information
consult Appendix B.
Nominal input impedance is 20K ohm for
balanced use and 10K ohm for unbalanced use.
Polarity complies with AES14-1992 (ANSI
S4.48-1992) and therefore pin assignments are:
1 = GND (Ground)
2 =(+) non-inverted signal
3 = (-) inverted signal
Terminal Block balanced input signal are also
available for each channel, in parallel with the XLR
inputs.
F) Signal led
This LED shows the presence of signal at the
amplifier’s inputs and is dependent on the position
of the LEVEL control.
G) Cooling air outlet grilles
Fan cooling permits airflow through the most
vital parts of the amplifier. Since the airflow finds its
way out through these grilles, keep them as clean
and dust-free as possible to assure proper cooling.
C) Input mode switch
This switch allows the selection for the input
configuration mode: stereo, parallel or bridge.
Typically the amplifiers are used in stereo
mode, where the input to channel A feeds channel
A and the input to channel B feeds channel B.
Parallel mode allows feeding both channels
with the signal plugged into channel A. Channel
B’s input is disconnected in this mode.
Use the Bridge mode to use the power of both
amplifiers for one single output. For more
information consult Appendix A.
In the figure above, the Input Mode Switch can
be seen located between the two XLR input
connectors.
D) Mains led
The amplifier is plugged into the mains by way
of a power cord complying with the IEC standards.
The IEC-type detachable power cord features
three isolated cables, color code being brown
(live), blue (neutral) and yellow-green (earth).
E) Fan inlet grilles
Like for the front outlet grilles, keep clean and
dust-free to assure free air intake for proper
cooling.
STEREO
BRIDGE PARALLEL
CH A
CAUTION ATTENTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
DANGER D’ELECTROCUTION
NE PAS OUVRIR
, CH A INPUT
BRIDGE OR
PARALLEL
CH B INPUT
CH B
STEREO
BRIDGE PARALLEL
CH A
D.A.S. AUDIO S.A. (Valencia)
MADE IN SPAIN
S.N. :
CAUTION ATTENTION
RISK OF ELECTRIC SHOCK DO NOT OPEN DANGER D’ELECTROCUTION NE PAS OUVRIR
EUROPEAN PRODUCT
N1918
, CH A INPUT
BRIDGE OR
PARALLEL
CH B INPUT
FOR CONTINUED PROTECTION
AGAINST RISK OF FIRE REPLACE
ONLY WITH THE SAME TYPE
140V 200V
CHANNEL A
70V
100V
100V
25V
25V
70V
100
100
70
0
70
0
SPEAKER
OUTPUT
CHANNEL B
BRIDGE
A
B C D E
CH B
140V 200V
CHANNEL A
70V
100V
100V
25V
25V
70V
100 100
100 100
70 70
0 0
70 70
0 0
SPEAKER
OUTPUT
CHANNEL B
BRIDGE
XLR and Terminal Block inputs
EN
Manual del Usuario / CSA / User’s Manual