D.A.S. Audio DR Active Series - Manual (Page 14)

Manual del Usuario User’s Manual / DR active / 8
USE
Switch ON/OFF
Limiter indicators (LIMIT)
Equalisation
A sound system should be switched on
sequentially. Switch on the self-powered unit last in
your sound system. Switch on the sound sources
such as CD players or turntables, then the mixer
and finally the self-powered unit. If you have
several units, it is recommended that you switch
them on sequentially one at a time.
Follow the inverse order when switching off,
turning self-powered units off before any other
element in the sound system.
Mute all signal sources before switching the
unit on or off.
It is recommended that the red LIMIT LED
indicators are not lit continuously; at most they
should blink only occasionally.
If you wish to have a visual indication at the
mix position of whether the LIMIT LEDs are
lighting, during equipment set-up, closely observe
what mixer VUmeter level corresponds to the level
that lights the enclosure's LIMIT LEDs. That level
should not be exceeded during the event.
The units do not need extreme settings of
equalisation to produce quality sound. Avoid high
levels of gain on the equalisers. Gain values above
+6 dB on a console's EQ are not recommended.
For speech applications the LOW CUT is
recommended to filter out low frequency excess. It
can also be useful if we need to drive the boxes at
very high levels, relieving some of the excursion off
the cone.
Overheating
Low mains voltage
Due to their high efficiency, the
amplifiers generate very little residual heat and
therefore do not need a fan for cooling. In normal
use, the amplifier panel will be warm to the touch.
If the unit stops playing (or just the mid-high or
the bass sections), the amplifier's overheating
protection
may be activated to protect the
components from thermal damage.
Overheating may be due to insufficient cooling,
or to very aggressive use in extremely hot
conditions. Do not use the unit in proximity to high
power lights.
Once the amplifier cools down, it switches
back on automatically. If the unit should shut down
again, try reducing the volume a notch to avoid
overheating.
If mains voltage falls below the shutdown
voltage for the unit, it will stop playing. When
acceptable levels are regained, the unit will switch
back on automatically.
DR series
EN
Current consumption (A)
DR-15A & DR-108A DR-112A & DR-115A
Max. Power 1,1 2,9
1/3 Power 0,5 0,66
1/8 Power 0,25 0,2
Idle 0,1 0,1
Heat emission (BTU/h)
Max. Power 860 2270
1/3 Power 390 515
1/8 Power 195 155
Idle 80 80
AC = 230 V