7
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 sa-
fety symbols are printed
on the rear side of the
unit.
Connect all cables ac-
cording to your application and switch the amplifier
on. The green
power
control LED indicates operati-
onal readiness.
4.2 Level adjustment
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 amplifier to your signal
sources (guitar pickups, microphone etc).
Turn the
gain
control clockwise until the red
clip
indicator flashes momentarily when playing with a
strong attack. Thus you make sure that your signal
source (e.g. instrument) provides the input-stage of
the amplifier with the necessary input.
Note: Level adjustment
By setting the level correctly we mean the signal le-
vel in one or several devices in a signal chain is neit-
her 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 unintentio-
nally added to the signal.
We have carefully designed the circuit to achieve this
objective whilst also providing controls for „manual“
intervention.
channel 1
IF_Compact60
3
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Compact
60
3
channel 2
IF_Compact60
3
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Compact
60
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The
clip
-LED indicates an overload. A short flicker
is of no danger to AER devices. During operation a
short flicker 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.
5. Functional characteristics
5.1 Equalization
The triple-/dual-band equalizer of your
Com-
pactMobile
2
provides you with an active and high
quality sound interaction tool that supports the na-
tural tone of instruments and voice whilst simulta-
neously offering you the possibility of a controlled
accentuation.
With all controls in mid position the filters are set
to produce a very pleasing and natural sound im-
pression that you can „colour up“ by using the
co-
lour
filter with the effect of lowering the mids and
lifting the trebles. The tone becomes more open
and light and is especially suited for fingerpicking
techniques.
The equalization can support or soften the effect of
the
colour
filter and allows a differentiated mids-
accentuation.
Note:
The active equalization of the
CompactMobile
2
effects the signal adjustment. If you spot an inten-
sified flickering of the
clip
indicator, level the sig-
nal level with the
gain
control (
s. 4.2 Level adjust-
ment
).
colour
bass
middle
treble
A: with colour-filter
(switch pressed)
reduce
treble
to soften possible sharpness
colour
bass
middle
treble
B: without colour-filter
(switch not pressed)
boost
treble
to brighten the sound
