- Crest Audio X-Four Mixing Console Owner's Manual

p. 57
master module
output EQ features
On the MASTER module block, the default sources for the four output eq’s
are the
AUX
5 and 6,
and MATRIX 1 and 2.
By using designated assignment switches, source for the first three output
eq’s can be switched over to the left, right and mono masters.The fourth
eq is always fed by
MATRIX
2 master.
All eq's feature four bands of equalization.
see—group module
high frequency—HF
boost / cut -15 dB boost and cut at 12kHz—shelving response.
high-mid frequency—HM
boost / cut - 15 dB boost and cut.
selectable frequency range of 400Hz to 8 kHz.
The response is bell-shaped with a fixed Q of 1.5.
low-mid frequency—LM
boost / cut - 15 dB boost and cut
selectable frequency range of 80Hz to 2 kHz.
The response is bell-shaped with a fixed Q of 1.5.
low frequency—LF
boost / cut 15 dB boost and cut @ 80Hz.
5