D.A.S. Audio Energy Series - Manual (Page 19)

3
Turns the amplifier on (“|” position) and off.
When the amplifier is turned on the ‘Power’ LED,
the ‘Idle’ LEDs and the ‘Safeguard’ LEDs will
illuminate.
When all voltages are properly
established the s will turn off. It is
of the monophasic type (which must be taken into
consideration if the device is to be permanently
connected to the mains power socket; see Safety
Warnings.
‘Safeguard’ LED
INTRODUCTION
General
Thank you for purchasing a D.A.S. power
amplifier. It has been built with the most advanced
modular technology, and has been designed
through the use of computer-aided design for both
the electronic and mechanical parts.
Features
FRONT PANEL DESCRIPTION
A) Power switch
B) Power LEDs (POWER and IDLE)
When lit, these LEDs (green ‘IDLE’ and red
‘Power’) show that the amplifier is on.
C) Input LEVEL controls
Volume levels for each channel can be
adjusted by using the knobs found on the front
panel. Gain is maximum when the LEVEL rotary
potentiometer is rotated fully clockwise.
D) CLIP LEDs
In the event that the signal’s excursion exceeds
the maximum voltage from the power supply, the
unit will indicate saturation through the clip LED of
the channel involved.
E) Protection LEDs (SAFEGUARD)
When a channel’s output is disconnected by
the amplifier’s protection, this yellow LED
illuminates.
A channel’s protection may be triggered by:
•
Overheating sensed at any part of a
channel. When the amplifier has cooled down,
the channel’s output will be connected and
operation will resume. The control circuit has
some degree of built-in hysterisis to avoid turn-
on and off oscillations.
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Presence of DC at a channel’s output.
Since it may severely damage speakers, the
amplifier will deactivate the output in the event
DC levels are detected. Once DC is no longer
present, the PROTECTION LED will turn off
and output is reactivated.
POWER
STATUS
SAFEGUARD
IDLE CHANNEL-A CHANNEL-B
CLIP
I
F A B C B D E
•
When the amplifier is switched on, the
output is also deactivated for a few seconds to
prevent dangerous transients from damaging
the speakers, and the Safeguard LED is on
until the amplifier is ready for use.
F) 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.
Dual balanced XLR and Jack 6.35mm (1/4”)
input connectors
Output terminal connections.
Variable speed back-to-front fan cooling.
Front located volume controls.
Overload protection.
Short-circuit protection.
Independent
thermal protection for each
channel.
Turn on current limiter.
Turn on delay.
Stable into reactive or mismatched loads.
Ultrasonic and RF protection.
Modular technology: Easy to replace modules.
Stereo, parallel and bridge operation modes.
Power On, Clip and Protection LED indicators
for each channel.
.
Open circuit protection.
Class AB.
EN
Manual del Usuario User’s Manual / energy /