AER Compact XL, User Manual

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4. Operation summary
4.1 Cabeling and startup
Check if your local mains voltage (e.g. 120 V in the
USA, 230 V in Euro pe) complies with the required
operating voltage for your amplifi er. The proper
mains voltage is printed on the rating plate on the
rear panel of the unit,
e.g. AC 230V (AC means
alternating current). Please
take care that the master ,
gain
,
aux in
, pre out,
eff
.
level and eff . send controls
are set to zero (left stop) and all other controls to
their center positions. The pushbuttons should be
switched off (not pressed)
Important note:
Under no circumstances activate
the 9 V and 48 V on the rear panel (below phantom
power) when you are not sure that phantom supply
is needed.
Then
make all the necessary cable connections
(mains, instrument etc.).
Now you may turn on your amplifi er with the
power on switch located on the rear. The green
power
control LED will indicate operational
readiness.
4.2 Level adjustment
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
unintentionally added to the signal.
We have carefully designed the circuit to achieve
this objective whilst also providing controls for
„manual“ intervention.
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 electronics
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 indi-
cator 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.
5. Functional characteristics
5.1 Equalization
The triple-/dual-band equalizer of your Compact XL
provides you with an active and high quality sound
interaction tool that supports the natural tone of in-
struments 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
colour bass middle treble
Note:
The active equalization of the Compact XL ef-
fects the signal adjustment. If you spot an intensifi ed
fl ickering of the
clip
indicator, level the signal level
with the gain control ( s. 4.2 Level adjustment ).
A: with colour-fi lter
(switch pressed)
reduce treble to soften possible sharpness
B: without colour-fi lter (switch not pressed)
boost
treble
to brighten the sound
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.