darTZeel Audio NHB-108 A version - Manual (Page 12)

darTZeel NHB-108 model one Owner's Manual Page 12 of 17
Connect again all your cables, without
omitting the loudspeakers , and power
ON your darTZeel NHB-108 model one.
Now you are ready to enjoy some more
good music, compensating all that tiring
physical effort you have just put in…
Although the above procedure could
seem rather long and complicated, you
will see that it is a simpler task to per-
form than to explain.
Anyhow, if you carefully respect all ad-
vice and warnings
, you should never en-
counter such problems of blown fuse(s).
6.2. DC voltage drift
Every single darTZeel NHB-108 model one
is lovingly checked, tested and listened
to for more than 4 weeks before leaving
our workshop.
Output DC voltage drift normally does
not need any further adjustment, pro-
vided you use your amplifier in a room
temperature ranging from 59°F to 95°F
(15°C to 35°C).
If one – or both – Eyes begins to blink,
even though
your loudspeakers are
properly connected , a readjustment is
recommended.
This tuning procedure is described in the
Audiophile's technical manual.
6.3. Cleaning and upkeep
The darTZeel NHB-108 model one has not
only been designed for providing you
intense moments of musical pleasure; it
is also designed to withstand the rigors
of time, especially if you take proper
care.
This is undoubtedly one of the few, if not
the only, amplifier to be virtually dust-
proof. The whole case performs heat ex-
change, while the two lateral heat sinks
regulate and maintain the correct tem-
perature. This design avoids the need for
any vent slot.
The only visible traces you will see in the
long-term will be located on the inner
side of the smoked glass, and will be due
to some natural evaporation of some
plastic packaged components.
We suggest that you remove the cover
glass once a year, and use a soft cloth to
gently wipe the glass with an appropriate
cleaning solution. Your darTZeel NHB-108
model one will then keep its "like-new"
aspect for decades, and as time goes by,
the less you will need to perform this
operation.
As for the external parts of your equip-
ment, a soft cloth or even a dust brush
will be completely adequate.
In case of fingerprints, a gentle rub with
a cloth soaked in isopropyl alcohol will be
more appropriate.
Just bear in mind, however, that the
simplest things are, more often than not,
the most efficient.
We personally found that a spot of soap
on a wet soft cloth is the best method
most of the time. Try for yourself!
As you have certainly guessed, we con-
firm that it is strongly recommended to
never use acid to clean your gear. Acid is
very corrosive and could react with the
anodized coating. Furthermore, acid is
very corrosive for the skin, too…
If you follow these few elementary rules,
you will be assured of having a very nice
looking machine for decades to come.
7. Some advice and tips
7.1. What not to do
Our advice and recommendations have
been voluntary placed close to the end of
this owner's manual. This does not mean
that they are of only minor importance -
quite the contrary.
We just thought that the following points
are not directly involved in the everyday
use of your amplifier.
However, the completely new concept of
the darTZeel NHB-108 model one calls for
certain precautions.
These few but important warnings are
the following:
1) Never, ever attempt to short circuit
the Speaker Terminals (7).
Repetitive shorts could lead to per-
manent damage to the corresponding
output stage.