SERIE DS-Active Power
SERIES
Manual del usuario /
User's manual
12
1. INTRODUCTION
1.1 General
Thank you for purchasing D.A.S. products. The Dynamics
series represents more than 30 years of expertise in
transducer and enclosure design, achieving a system that
utilises the most advanced sound reinforcement technology to
deliver outstanding audio performance and maximum
reliability.
This manual contains the required information to make the
best use of the system you have purchased. Please take the
time to read it.
Our Web site at www.dasaudio.com contains further support
information such as enclosure and system drawings, data for
modelling software, architectural specifications and
specification sheets.
1.2 Features
•
State of the Art amplifier technology including class-D
high efficiency low weight amplifiers
•
Plug & play self-powered systems
•
XLR (Cannon) balanced input
•
XLR (Cannon) parallel output
•
Line and microphone use
•
Low weight and transport handles for portable use
•
High density mineral loaded polypropylene enclosure with
complex geometry that allows for stage monitor use
•
Nine M8 rigging points
•
2-way full-range powered speaker system
•
300W amplifier for the low frequencies and 100W for the
high frequencies
•
High efficiency low frequency Neodymium cone
transducers
•
Neodymium high frequency transducers (DS-115A only)
•
Professional high frequency compression driver with
1.75” titanium diaphragm
•
Standard 35-mm speaker tripod socket for portable use
2. AMPLIFIER PANEL DESCRIPTION
A)
SIGNAL : Signal presence indicator light.
B)
LIMIT : Limiter indicator light for each of the frequency
bands.
C)
MIC/LINE : Switches between microphone and line modes.
The indicator light on the left hand side of the switch is lit
when the microphone mode is activated.
D)
LOW CUT : Switches a 100 Hz high-pass filter on and off.
E)
LEVEL : Controls the level of the system.
F) Power switch : Turns the unit on (“|” position) or off (“o”
position).
G) AC input: standard IEC male connector. Plug the mains
cable here.
H)
FUSE : Fuse.
I)
ON : Power-on indicator light.
J)
INPUT : Balanced signal XLR. Pin assignments as follows :
1 = GND (Ground)
2 = (+) Non-inverted input
3 = (-) Inverted input
K)
LOOP THRU : Used for paralleling several units, which will
share the same input.
3. USE
3.1 Switch on-off
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.
3.2
LIMIT indicator
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.
3.3 Equalisation
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.
3.4 Overheating
Due to their high efficiency, the DS Series amplifiers generate
very little residual heat and therefore do not need a fan for
