18
Onyx 1620i
24. HIGH EQ
The high EQ provides up to
15 dB of boost or cut above
12 kHz, and it is also flat (no
boost or cut) at the detent. Use
it to add sizzle to cymbals, an
overall sense of transparency,
or an edge to keyboards, vocals, guitar and bacon frying.
Turn it down a little to reduce sibilance or to mask tape
hiss.
SOLO
SOLO
SOLO
SOLO
SOLO
SOLO
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
48V
48V
48V
48V
48V
48V
21
22
24
25
26
28
30
31
32
33
35
36
34
27
9
10
18
19 20
20
Hz
100
Hz
1k
Hz
10k
Hz
20k
Hz
–15
–10
–5
0
+5
+10
+15
25. HIGH-MID EQ FREQUENCY (Ch. 1-8)
This knob ranges from 400 Hz to 8 kHz. This
determines the center frequency for the EQ filter, and
allows you to zero in on the precise narrow band of
frequencies you want to have affected by the high-mid
EQ [26].
26. HIGH-MID EQ LEVEL (Ch. 1-8)
The high-mid EQ provides up
to 15 dB of boost or cut at
2.5 kHz, and it is flat at the
detent. Midrange EQ is often
thought of as the most dynamic
because the frequencies that
define any particular sound are almost always found
within this range. For example, the female vocal range
as well as the fundamentals and harmonics of many
higher-timbred instruments.
27. LOW-MID EQ FREQUENCY (Ch. 1-8)
This knob ranges from 100 Hz to 2 kHz. This
determines the center frequency for the EQ filter, and
allows you to zero in on the precise narrow band of
frequencies you want to have affected by the
low-mid EQ [28].
28. LOW-MID EQ LEVEL (Ch. 1-8)
The low-mid EQ provides up
to 15 dB of boost or cut at
400 Hz, and is flat at the detent.
Frequencies affected typically
include the male vocal range as
well as the fundamentals and
harmonics of many lower-timbred instruments.
29. MID EQ LEVEL (Ch. 9-16)
The mid EQ provides up to 15 dB of boost or cut at
2.5 kHz, and is flat at the detent.
30. LOW EQ
The low EQ provides up to
15 dB of boost or cut below
80 Hz. The circuit is flat at the
center detent position. This
frequency represents the punch
in bass drums, bass guitar, fat
synth patches, and some really serious male singers who
eat raw beef for breakfast.
20
Hz
100
Hz
1k
Hz
10k
Hz
20k
Hz
–15
–10
–5
0
+5
+10
+15
20
Hz
100
Hz
1k
Hz
10k
Hz
20k
Hz
–15
–10
–5
0
+5
+10
+15
20
Hz
100
Hz
1k
Hz
10k
Hz
20k
Hz
–15
–10
–5
0
+5
+10
+15
