Alesis DEQ230D User Manual

Basics of Equalization 

 

As long as this page is active, the DEQ230D will allow an external 

device such as a computer to transmit a new bank of  30 User 

programs into its User memory space. Once the external device 

begins sending the proper sys-ex data, the DEQ230D displays 

the message “Rcving,” or “receiving.” Depending on the speed 

of  the transmission, the transfer can happen so quickly you may 

not see that message. Either way, when the sys-ex transmission is 

complete, the DEQ230D will let you know by displaying the 

message “Done.” 

 

If  you change your mind in the middle of  the transmission and 

realize you’ve loaded in the wrong bank (or worse, you forgot to 

back up the User programs first), you can interrupt the 

transmission by pressing the [DOWN] button. But you’d better 

act quickly, as the whole process takes only about one second. 

 

And unfortunately, as soon the message “Rcving” is displayed the 

DEQ230D begins overwriting programs in the User bank. If  you 

saw that message you will have lost some User programs. But if  

you interrupted the transmission, you will have managed to save 

some of  the programs. 

 

 

Sometimes it is necessary to “daisy-chain” MIDI devices so the 

MIDI data from one unit will be passed through one or more 

other pieces of  MIDI gear until it is able to reach the last unit in 

the chain. The DEQ230D will allow you to do that when this 

function is set to Thru (the default value). 

 

The setting on this page will not affect whether or not the 

DEQ230D will send its memory out the MIDI Out jack. When 

that command is initiated (Button 8), the sys-ex data will be sent in 

either case. 

 

 

The DEQ230D automatically senses an incoming digital signal 

through its S/PDIF input and slaves its internal clock to that, 

whether the rate is 44.1k or 48k. But if  you need the DEQ230D to 

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

clock to the receiving device.  

 

You may prefer to record the output of  the DEQ230D at either 

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

clock to the desired sample rate. 

 

There may be times when you want the DEQ230D to ignore an 

incoming digital signal, but you don’t want to have to reach around 

to the back of  the rack and unplug the cable going into the 

S/PDIF input. This function will help prevent that tangled 

spaghetti-mess of  cables where no one knows whether the other 

end is actually hooked up to anything!