Alesis DEQ230D User Manual download pdf (Page 37)

Basics of Equalization 3

upward until it reaches 24. This is because that's how far the band

that was set to -12 dB had to travel until it hit the "ceiling," or + 12

dB (see fig. 2).

But what about the band that was set to 0 dB originally...was it

boosted to +24 dB? The answer is, "Yes and no." It was, in the

sense that the DEQ230 keeps track of the proportional values of

the bands, even if they exceed the +/-12 dB limit of gain change

for a frequency. But the audible audio gain is limited to +/-12 dB.

The reason the DEQ230 keeps track of the gain relationship

between the bands in the Edit Group is simple. It's so you can

change your mind, pull them back down to values within the +/-

12 dB limit, and still have them be the same distance apart!

For example: let's say you decided these frequencies have been

boosted too much, and you cut them by 12 dB. At this point the

Relative Gain display would read "12," with band one's Gain LED

at +12 dB and band two's Gain LED at 0 dB (as in fig. 1). So far

you haven't really reduced the gain of the first band, because it's

still at +12 dB. You still want to bring it down a bit, so you take

both frequencies down another 3 dB. So now the Relative Gain

display would read "9," with band one's Gain value at +9 dB and

band two's Gain value at -3 dB. And now you can see that the gain

relationship between the two bands was preserved; they're still 12

dB apart.

emember, pressing the

[

DOWN/UP] buttons at the

same time will reset the

elative Gain Display to 0.

From this point you can

change the Relative Gain of

the Edit Group in 2 dB

increments by holding one of

the [DOWN/UP] buttons and

ressing the other one

repeatedly. This can be a real

time-saver if you want to get

rom a Relative Gain value of

+24 to a value of –24!

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Alesis DEQ230D User Manual Page 37