darTZeel Audio NHB-108 A version - Manual (Page 8)

darTZeel NHB-108 model one Owner's Manual Page 8 of 17
you can directly hook them to the Speak-
er Terminals (7)
.
White terminal (upper) = Ground.
Red terminal (lower) = Live signal.
If your loudspeakers impedance is less
than this, or if you want to parallel 2
pairs of 4Ω speakers, you must go to
chapter 5.3. "User parameters" before you
consider going further.
If you do not respect the above, you
may encounter some blown fuses when
playing music at loud levels.
CAUTION: You must connect your loud-
speakers to the Speaker Terminals (7) be-
fore powering ON the darTZeel NHB-108
model one!
4.3. Choice of the input
Only one input can be used at a time. All
inputs are paralleled, so you cannot se-
lect them separately.
If you do not own a darTZeel preamplifier
yet, we suggest you use either RCA (6)
or XLR (4) inputs, with the Input Imped-
ance Selector (Z
i
)
switched on RCA Hi Z
(lower position, physically speaking).
The XLR inputs are not balanced on the
version A:
Pin 1 = Ground
Pin 2 = Hot leg
Pin 3 = Grounded through 13kΩ resistor.
If you have already paid us the honor of
purchasing a darTZeel preamplifier, we
strongly recommend using the 50Ω BNC
Zeel Inputs (5)
, with the Input Impedance
Selector (Z
i
)
switched on Zeel 50Ω (upper
position, physically speaking).
The Zeel input is definitely the one that
will bring you the purest sound ever
achievable. Read the Audiophile's techni-
cal manual if you want to know more
about this topic.
4.4. Powering ON
Please do not forget that the darTZeel
NHB-108 must have loudspeakers con-
nected before you power ON.
Your machine has already been factory
set in order to adapt to your mains sup-
ply, as confirmed by the sticker on the
glass cover. In case of doubt, please
contact us.
Connect the supplied power cable into
the IEC socket (8) and plug the other end
into the mains wall outlet.
You can then power ON the darTZeel
NHB-108 model one by pushing the Power
Nose (3)
button.
If a source is already connected, you
should immediately hear the music.
When powering the amplifier OFF by
pressing the Power Nose (3) button, you
can still hear the music for 10 to 30 sec-
onds before the level goes down dra-
matically and stabilizes. This behavior is
perfectly normal, and it is not a failure at
all. If you need more details about this,
please refer to the Audiophile's technical
manual.
5. Using the darTZeel
5.1 Power cycle
The darTZeel NHB-108 model one has been
designed to deliver more than 90% of its
magical sound at cold start.
After 5 minutes, you are very close to
the best the machine can offer. The in-
creasing quality you may hear as time
goes by will be mostly the reflection of
your growing musical pleasure…
No need then to leave your machine
powered ON all the time, except of
course if you like paying bigger electric-
ity bills…
If your present preamplifier produces
some clicks and/or bumps when power-
ing on/off, we suggest you observe the
following sequence:
Powering ON: first the Preamp, then the
darTZeel NHB-108 model one.
Powering OFF: first the darTZeel NHB-108
model one, then the preamplifier.
If this procedure is not respected, you
may encounter some blown fuses due to
Crowbar triggering.