Alesis DEQ230D User Manual

Basics of Equalization 

 

This mode is nearly as simple as it sounds: push the [BYPASS] 

button and the DEQ230 will let you hear the non-equalized audio. 

But there’s a bit more to it than that. There are also two gain 

adjustment stages that can be used to compensate for a reduction 

or increase in signal level caused by the equalization curve being 

used. The value for one of  these stages (Channel Level) is saved 

along with the EQ settings when the program is stored; the value 

for the other stage (Master Level) is not. So what Bypass mode 

really is doing is causing the audio to “pass by” the processing 

stages that are stored as a part of  the program. 

 

Here is a diagram that shows the relationship of  each of  the stages 

in the DEQ230’s signal processing chain: 

 

 

 

 

 

 

 

 

 

 

 

 

 

Audition mode allows you to choose specific programs and place 

them into the Audition List. From there you can more easily 

audition only those programs you want to hear for a particular 

audio source and "jump over" the ones you do not. To learn how 

to use this mode, see page 40. 

 

 

If  you are running two different instruments into channels A and 

B, you may be experiencing drastically different signal levels in 

each Channel. Channel Level mode can be used to adjust the 

output of  channels A and B independently.  

 

This mode is also useful when processing a stereo signal. If  the 

combination of  the source material and extreme EQ settings is 

causing the output of  the DEQ230 to clip, Channel Level mode 

can be used to adjust the output of  channels A and B 

simultaneously. 

 

Unlike the Master Level function in Setup mode, the settings for 

Channel Level mode are stored with each program. To learn how 

to use this mode, see page 42.