Alto CYCLONE User Manual page 13

[ Cyclone Mono Input Channels ]
We provided a very versatile EQ circuit with two sweep filters to satisfy professional users demand. Thanks to the
wide overlap section of the 4 filters, this EQ allows to shape in a very efficient way the sound of all the sound sources
which the sound engineers has to manage.
HIGH gain
It's a shelving filter giving the user a continuous adjustment of boost
and cut from +15dB to -15dB @15KHz.
MID-H gain
It's a peak/dip filter giving the user a continuous adjustment of boost
and cut from +15dB to -15dB @800~8KHz.
MID-H freq
It's the control to set the centre frequency of the MID-H control. It can
be adjusted in 800~8kHz range. It affects the frequency area from the
upper fundamental frequencies up to the higher harmonic frequencies,
allowing the skilled user to add or to subtract brightness to sound sources
to avoid masking frequencies effects.
MID-L gain
It's a peak/dip filter giving the user a continuous adjustment of boost
and cut from +15dB to -15dB @160~1.6KHz.
MID-L freq
It's the control to set the centre frequency of the MID-L control. It can
be adjusted in 160~1.6kHz range. It affects the frequency area of most
of fundamental tone frequencies up to lower harmonic frequencies,
allowing the skilled user to add/subtract impact and/or presence to
sound sources giving them a particular sound character.
LOW gain
It's a shelving filter giving the user a continuous adjustment of boost and cut from +15dB to -15dB @80Hz.
12
0dB
HIGH
15KHz
-
+ 15
15
0dB
MID-H
-
15 + 15
.
3 2
MID-H
freq
KHz
.
8 8
0dB
MID-L
-
15 + 15
640
MID-L
freq
Hz
.
160 1 6K
0dB
LOW
80Hz
-
15 + 15