Alesis DEQ830 User Manual

Basics of Equalization 

 

There are a couple of  sub-levels of  operation that can be accessed 

by pressing different buttons. We covered a number of  modes on 

the preceding pages; here are two more “hidden” modes: 

 

 

Sometimes it’s fun to have a lot of  little lights flashing from the 

stage or in the studio. The DEQ830 has a special key combination 

that will activate a “fireworks display” for the entertainment of  

your clients, audience, or children. In this mode the DEQ830 

automatically cycles through the first 25 programs at a rate of  1 

per second. To begin the pyrotechnics, first make sure you are in 

Program mode. Once you are, simultaneously press the 

[UTILITY] button and the [CHANNEL SELECT] button for 

Channel 6. 

 

To help prevent an accidental exit from Demonstration mode, only 

a few controls are active in this mode. The [MONITOR 

SELECT], [BYPASS] and [BYPASS ALL] buttons work the 

same way they do in Program mode (audio is bypassed by default). 

The [CHANNEL SELECT] buttons can be used to switch 

channels. 

 

To exit Demonstration mode, press the [PROGRAM] button. 

 

 

To access Lock mode, first you must turn off  the DEQ830. Then 

turn the unit back on, wait until you see the letters “DEQ830” in 

the display, and then hold down the [UTILITY] button. After a 

couple of  seconds you will see the word "Lock" appear in large 

letters above the [BAND SELECT] buttons. This mode allows 

you to do one simple thing—lock the DEQ830’s controls. To do 

this, use the [VALUE] encoder to select “On” for the Lock 

function. Default is “Off,” of  course. 

 

This function enables you to choose a particular program as the 

only one that can be selected once the DEQ830 is powered on. 

After this has been done, pressing any button besides the 

[POWER] button will cause the Numerical LED Display to show 

“Lo” for “locked.” This is handy for environments in which the 

DEQ830 is used for tuning a room, for example, or whenever you 

don't want someone calling up a different program, editing the 

current program, and/or storing a different program on top of  the 

one you have created for a particular application.  

 

It's simple to restore the DEQ830 to full functionality (i.e., 

“unlock” it). Just turn the unit off  and power it up in Lock mode 

again (turn the unit on and then hold the [UTILITY] button). 

Then use the encoder to turn this feature off. The next time you 

power up the DEQ830, it will operate normally.