Starting-Up; Cabling And Switching-On; Level Adjustment - AER amp one User Manual

4. Starting up
4.1 Cabling and Switching on
Before connecting to the mains, please ensure that
your local mains voltage is suitable for the voltage of
red and switch the amplifier on. The green power
control LED indicates 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 com-
ponents of a unit (e.g. equalizer, tone balance, com-
pressor).
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 provi-
ding controls (gain, master, level) for manual interven-
tion.
but does not reach the loudspeaker, while you are ad-
justing the level.
Turn the gain control clockwise until the red clip indi-
cator 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 amp-
lifier with the necessary input level.
An illuminated clip-LED indicates an overload. A short
flicker is 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 opti-
mal and distortion-free performance.
6
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 as desi-
First ensure, that the mute
switch is deactivated and
the master level control is
zeroed (over to far left),
so that the signal passes
through the electronics
Just like the gain control, the high/low switch (attenua-
tor de-/activation) also serves to adjust the signal. Start
at high with the switch not pressed down. If the in-
put signal is too strong and you cannot avoid clipping
even when you adjust with the gain control, then se-
lect the low setting.
When you have adjusted the sound level, then you
can set the desired final volume with the master con-
trol.