Alesis DEQ230D User Manual

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.