Manual del Usuario
/ D series amplifiers/
User’s Manual
D y n a m i c A m p l i f i e r P e r f o r m a n c e
Measurements
The
D-100
is the very latest example of a
'dynamic amplifier'. This new 'breed' of power
amplifiers provide very high peak power levels in a
much smaller, and lighter, package than previously
possible with conventional amplifiers.
They are designed specifically for today's high
power audio installations, which use multiple
speakers with electronic crossovers or speaker
controllers. These systems can handle very high
transient signals that far exceed their RMS power
rating. The
D-100
amplifiers have been designed
to match this requirement and can deliver huge
levels of power for short durations.
In order to protect themselves and the
loudspeakers that they are driving, continuous
signals such as sine waves, are automatically
detected and reduced (ramped down) to a safe
level.
When trying to measure the power output
however, continuous signals will give totally
incorrect results. A dynamic signal, such as a tone
burst, should be used and the levels measured by
monitoring the waveform on an oscilloscope. The
power envelope can then be accurately measured.
Our power output figures are measured using
signals with known Crest Factors and are quoted
at the rear of this manual and on our website.
Please refer to the technical area of our
website for further information.
Notes and Switching On
Read all documentation before operating your
equipment and retain all documentation for future
reference.
Do not spill water or other liquids into or on the
unit and do not operate the unit while standing in
liquid.
Do not block fan intake or rear ventilation
outlets or operate the unit in an environment that
could impede the free flow of air around the unit.
If the unit is used in an extremely dusty or
smoky environment, it should be cleaned of any
collected debris at regular intervals.
It is important that the power output of your
amplifier is matched to the power handling
capacity of your loudspeaker. If not, damage to
the loudspeaker could occur.
Switching On…
At 'switch-on' the protection circuit will initially
activate whilst the circuits stabilise, indicated by
the red A/P LED illuminating, in addition to various
other LEDs. After a few seconds the red A/P LED
will extinguish indicating a satisfactory working
condition.
Other LEDs may remain illuminated depending
upon rear panel switch settings and input
connections. If the A/P LED does not extinguish
after 5 seconds the unit may be faulty or some
external connections may be incorrect or
inappropriate. If this occurs you should power
down the unit and remove all external connections
(except for the mains power supply) and repeat
the power up sequence. If the problem persists
please contact us.
Maintenance
These maintenance instructions are for use by
qualified personnel only. Before any routine
maintenance, please ensure that your amplifier is
disconnected from the mains supply!
The filter behind the air intake apertures on the
front of your amplifier should be cleaned or
replaced periodically, e.g. 12-24 months. (Filters in
amplifiers located in more 'dirty' atmospheres may
require more frequent maintenance).
The filter should be 'dry' cleaned, using a
vacuum cleaner preferably. Running the unit
without a filter is not recommended unless it is
within a 'clean room'. Replacement filter material
is available.
If the fan vents on the rear of the amplifier
develop a build-up of dust/debris on the finger
guards, they can be cleaned with a dry paintbrush
and a vacuum cleaner.
The casework of the amplifier may be cleaned
with a lightly dampened cloth – do not use any
solvents as they will damage the paint finish and
could remove printing.
If you have any doubts about carrying out
maintenance, please refer to a service engineer or
contact your local dealer.
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