Alesis DEQ830 User Manual

Basics of Equalization 

command is initiated (Button 11), the sys-ex data will be sent in 

either case. 

 

 

The DEQ830 automatically senses an incoming digital signal 

through its ADAT Optical input and slaves its internal clock to 

that, whether the rate is 44.1k or 48k. But if  you need the 

DEQ830 to serve as an A/D converter, then it will need to be the 

master clock for the receiving device.  

 

You may prefer to record the output of  the DEQ830 at either 

44.1k or 48k. Use the setting of  this function to set the internal 

clock to the desired sample rate. Once your choice is confirmed, 

you’ll see the Sample Rate LEDs change from one rate to the other. 

 

There may be times when you want the DEQ830 to ignore an 

incoming digital signal.  This function gives you an solution that is 

easier than reaching around to the back of  the rack and 

unplugging the cable going into the ADAT Optical input. 

 

Auto is the default value. To force the DEQ830 to listen only to 

the balanced inputs, switch this setting from Auto to Analog. 

 

 

This setting controls the behavior of  the [VALUE] encoder as 

you use it to select programs. When this function is set to its 

default value of  “On,” the current program will change instantly 

when you turn the [VALUE] encoder. 

 

When set to “Off,” turning the encoder will not immediately select 

a program. Instead, the display will flash the program numbers as 

you scroll through them, but the program won’t actually change 

until you press the [VALUE] encoder to confirm the selection. 

This prevents accidental program changes. 

 

 

This function allows you to control the behavior of  the Band Gain 

LEDs while in Real Time Analyzer mode, as described on page 44. 

 
System Exclusive Transmit (Send?) 

 

When on this page, pressing the [VALUE] encoder will cause the 

DEQ830 to transmit all of  its programs and curves over the MIDI 

Out jack in “system exclusive” (sys-ex) format. This is a great way 

to back up your settings, and the combination of  this function and 

the next makes it easy to configure the DEQ830 for particular 

applications. 

 

Once the transmission has begun, you will see a brief  message of  

“Sending,” followed by the message “Done.”