AER DUAL-PARA EQ User Manual Download

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4.2 Level adjustment

For the

dual para eq

the line output level delivered by the

preceding device should already be sufficient for an optimal
drive thus an actual level setting is not necessary. Please
note that the filter stages of the

dual para eq

are active and

will therefore affect the overall level setting.
The

clip

indicator monitors all critical points in the signal

path and indicates excessive signal levels (overdrive, distor-
tion). In that case turn down the

gain

control to lower the

signal level. However, with too high signal levels in the

dual

para eq

(clipping) it may be advisable to lower the signal le-

vel on the preceding unit.

5. Functional Characteristics

5.1 phase

The

phase

switch allows reversal of the phase of the out-

put signal of the

dual para eq

relative to the input signal

by 180°, thus matching it to the phasing of other devices in
your signal chain.

5.2 bypass (bypass switch)

The

bypass

is designed as a „hard-wire“-type – directly con-

nected – bypass. This means that while in bypass mode, the
signal will not pass through any other electronics, the

dual

para eq

is completely bypassed. The

bypass

switch allows

you to compare the input signal with the signal processed
by the

equalizers

(A/B comparison). In case of an A/B com-

parison the

gain

control is used to compensate the level dif-

ferences of the signals to be compared. (see above

4.2 Level

adjustment

5.3 equalizer

The

equalizers

are two parametric filter networks, adjustab-

Experiment and enjoy your new route to alternative sound-
scapes!
Thanks for reading!

Note: Level compensating amplifier

The

dual para eq

is not an instrument preamp. Consequently

it is not recommended to directly connect e.g. a microphone
or a guitar pickup to the

dual para eq

The

dual para eq

features a high-quality level adjustment

stage (feasible for pro audio and hifi levels) which allows to
set the gain within a +/-10 dB range. The centre position is
equivalent to 0 dB, i.e. the level remains unchanged (unity
gain). Turning this control counterclockwise will lower the si-
gnal level, turning it clockwise will boost it.

le from

90 Hz bis 11 kHz

in two ranges.

f1 = 90 Hz – 1,6 kHz

and

f2 = 680 Hz – 11 kHz

. The ranges have been designed

to meet the special requirements of acoustic instruments,
microphones and other signal sources and to allow useful
and accurate signal manipulation in order to suppress reso-
nances and feedback. The filter technology ensures a cons-
tant bandwidth at any selected frequency.

Note:

A parametric equalizer is a filter network where all features
of a filter (amplitude, i.e. boost or cut = level, frequency and
Q factor = bandwidth) can be adjusted. Parametric means
that not only the boost /cut, but also the location and width
of the frequency bands can be adjusted. It offers the possi-
bility to equalize (flatten) notches or peaks in the frequency
response (hence the name equalizer) and to suppress feed-
backs or resonant peaks. It can also be used as a flexible
tone control for targeted sound alterations.

Sample application:

Suppose you notice an excessive signal increase (feedback).
To counteract you will need to reduce the sig-nal level of the
corresponding frequency range. To do this, first set the

level

control (amplitude) to maximum cut (left-hand stop). Make
sure that the

bandwidth

control is set to maximum band-

width (right-hand stop). Using the

frequency

control you

can now detect the centre frequency of the offending fre-
quency range. (use the

f1/f2

preselect switch also) The peak

should now be gone. To enhance the sonic result, you may
reduce the

bandwidth