17
4.2 Level adjustment
4. Starting up
4.1 Cabling and switching on
Before connecting to mains, please ensure that your
local mains voltage is suitable for the voltage of
the device (e.g. 120V in the USA, 230V in Europe).
The relevant specs
and safety symbols are
printed on the rear side
of the unit.
Connect all cables
according to your
First ensure, that the
master
level control is zeroed
(over to far left), so that when you are setting the
sound level, the signal passes through the elect-
ronics only and does not reach the loudspeaker.
By pressing the
high-/low-
(attn.) resp.
line-/mic-
switches you can adapt the amplifi er to your signal
sources (guitar pickups, microphone etc).
Turn the
gain
control clockwise until the red
clip
indicator fl ashes momentarily when playing with a
strong attack. Thus you make sure that your signal
source (e.g. instrument) provides the input-stage of
the amplifi er with the necessary input.
application and switch the amplifi er on. The green
power
control LED indicates operational readiness.
The
clip
-LED indicates an overload. A short fl icker
is of no danger to AER devices. During operation a
short fl icker can be accepted, to be on the safe side
you should reduce the
gain
slightly to achieve an
optimal and distortion-free performance.
Finally set the desired overall volume level with the
master
level control.
Note: Level adjustment
The active equalization of the
Compact
Mobile 2 eff ects the signal adjustment.
If you spot an intensifi ed fl ickering of the
clip
in-
dicator, level the signal level with the
gain
control
(
s. 4.2 Level adjustment
).
5. Functional characteristics
5.1 Equalization
The triple-/dual-band equalizer of your
Compact
Mobile 2 provides you with an active and high qua-
lity sound interaction tool that supports the natural
tone of instruments and voice whilst simultaneously
off ering you the possibility of a
controlled accentuation.
With all controls in mid position the fi lters are set to
produce a very pleasing and natural sound impressi-
on that you can „colour up“ by using the
colour
fi lter
with the eff ect of lowering the mids and lifting the
trebles. The tone becomes more open and light and
is especially suited for fi ngerpicking techniques.
The equalization can support or soften the eff ect of
the
colour
fi lter and allows a diff erentiated mids-
accentuation.
colour
bass
middle
treble
A: with colour-fi lter
(switch pressed)
reduce
treble
to soften possible sharpness
colour
bass
middle
treble
B: without colour-fi lter
(switch not pressed)
boost
treble
to brighten the sound
Note: Level adjustment
By setting the level correctly we mean the signal
level in one or several devices in a signal chain is
neither too high nor too low. This applies equally
to all circuits in a complete circuit design (EQs,
preamps etc.)
Consequently, care must be taken that no part of
the circuit is overloaded or that distortion is unin-
tentionally added to the signal.
We have carefully designed the circuit to achieve
this objective whilst also providing controls for
„manual“ intervention.
IF_Compact60
3
_20120529
Compact
60
3
IF_Compact60
3
_20120529
Compact
60
3
