Alesis DEQ230 Reference Manual page 62

5
Program Charts
6 Loudness Plus
7
8 Comb Filter - 125 Hz
A: Kick
9
B: Snare
A: Bass Guitar
10
B: Acoustic Guitar
A: Male Vocal
11
B: Female Vocal
60
This curve approximates what happens when you press the
"Boost" button on some consumer-level stereo equipment. It
makes for a nicely balanced sound when listening at low levels.
Techno This setting emphasizes the extremes to get the dancing bodies
really moving.
Feed a signal into it that contains 125 Hz and it will really
emphasize that frequency.
Link=Off. Feed Ch. A a kick drum for thump, beater tap, and to
reduce hollowness. Ch. B reduces low end to separate the snare
and kick and also reduces hollowness.
Link=Off. Gets you in the ballpark for bass and guitar, but your
results may vary--make adjustments as needed.
These generally fit the physics of male and female voices. The
low end is reduced to avoid unwanted rumble and the high end is
emphasized for increased intelligibility.