Alesis DEQ830 Manual Do Utilizador

Basics of Equalization 

When a hot line level signal comes in, the DEQ830 has plenty of  

headroom to deal with it. But if  you perform some radical 

equalization on this signal, it is possible that the combination of  

the incoming hot signal plus the equalization you have done may 

put the signal “over the top” and within clipping range. The 

Master Level function allows you to reduce the level of  the 

equalized signal before it reaches the final output stage of  the 

DEQ830.  

When a hot line level signal comes in, the DEQ830 has plenty of  

headroom to deal with it. But if  you perform some radical 

equalization on this signal, it is possible that the combination of  

the incoming hot signal plus the equalization you have done may 

put the signal “over the top” and within clipping range. The 

Master Level function allows you to reduce the level of  the 

equalized signal before it reaches the final output stage of  the 

DEQ830.  

  

Don’t confuse this with the Channel Level settings in Edit mode. 

The Channel Level settings are stored with the program, and 

therefore may vary from program to program. The Master Level 

setting is global; i.e., it is always active and will affect every 

program. There is a diagram on page 32 that illustrates the 

relationship between Channel Level and Master Level. 

Don’t confuse this with the Channel Level settings in Edit mode. 

The Channel Level settings are stored with the program, and 

therefore may vary from program to program. The Master Level 

setting is global; i.e., it is always active and will affect every 

program. There is a diagram on page 32 that illustrates the 

relationship between Channel Level and Master Level. 

  

To lower or raise the Master Level setting, use the [VALUE] 

encoder. 

To lower or raise the Master Level setting, use the [VALUE] 

encoder. 

  

For an explanation of  how to use the Channel Level control 

feature, see page 32.  

For an explanation of  how to use the Channel Level control 

feature, see page 32.  

  

  

Of  all the Utility mode features, this is the one that will most 

affect the way you work with the DEQ830. The Release Edit 

Group setting determines the behavior of  the [BAND SELECT] 

buttons in Edit mode.  

Of  all the Utility mode features, this is the one that will most 

affect the way you work with the DEQ830. The Release Edit 

Group setting determines the behavior of  the [BAND SELECT] 

buttons in Edit mode.  

  

For the sake of  describing this feature, let’s review some things we 

already know. When you press a [BAND SELECT] button, you 

enter Edit mode. If  you don’t turn the [VALUE] encoder right 

away, you can keep pressing [BAND SELECT] buttons until you 

have several of  them selected simultaneously. This is called 

selecting an Edit Group.  

For the sake of  describing this feature, let’s review some things we 

already know. When you press a [BAND SELECT] button, you 

enter Edit mode. If  you don’t turn the [VALUE] encoder right 

away, you can keep pressing [BAND SELECT] buttons until you 

have several of  them selected simultaneously. This is called 

selecting an Edit Group.  

  

Once you have selected an Edit Group, you can cut or boost the 

gain of  all of  the bands in the Edit Group simultaneously; they 

will move up or down together. The Release Edit Group feature 

does not affect these things; this is always how the DEQ830 

operates.  

Once you have selected an Edit Group, you can cut or boost the 

gain of  all of  the bands in the Edit Group simultaneously; they 

will move up or down together. The Release Edit Group feature 

does not affect these things; this is always how the DEQ830 

operates.  

  

However, once you make an edit, the Release Edit Group feature 

comes into play. If  it is set to “On,” the very next [BAND 

SELECT] button you press will “release” all of  the previously 

selected bands. The only band that will be selected is the one you 

just pressed. You will know this happened, because only that 

band’s Gain LED will be blinking.  

However, once you make an edit, the Release Edit Group feature 

comes into play. If  it is set to “On,” the very next [BAND 

SELECT] button you press will “release” all of  the previously 

selected bands. The only band that will be selected is the one you 

just pressed. You will know this happened, because only that 

band’s Gain LED will be blinking.  

  

If  the Release Edit Group feature is set to “Off,” the next 

[BAND SELECT] button you press after you have changed the 

level of  the Edit Group will simply add that band to the Edit 

Group. The upside of  this is the convenience of  being able to 

boost three frequencies +3 dB, for example, and then add another 

frequency to the pile and boost them all another +2 dB without 

having to reselect the first three. The downside is that you will 

have to deselect all four bands if  you want to grab one more 

frequency and edit it by itself.  

If  the Release Edit Group feature is set to “Off,” the next 

[BAND SELECT] button you press after you have changed the 

level of  the Edit Group will simply add that band to the Edit 

Group. The upside of  this is the convenience of  being able to 

boost three frequencies +3 dB, for example, and then add another 

frequency to the pile and boost them all another +2 dB without 

having to reselect the first three. The downside is that you will 

have to deselect all four bands if  you want to grab one more 

frequency and edit it by itself.