Alesis DEQ230D User Manual

 

There are several sub-levels of  operation that can be accessed 

from Program mode by pressing different buttons. We covered 

Channel Level mode and Audition mode 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 DEQ230 has a special key combination 

that will activate a “light show” for the entertainment of  your 

clients, audience, or children. To begin the pyrotechnics, first make 

sure you are in Program mode. Once you are, hold down the 

[LINK/EXIT] button and press the [UP] button. 

 

To exit Demonstration mode, press the [LINK/EXIT] button. 

 

 

Real-time Analysis mode (DEQ230D only): 

 

The DEQ230D is capable of  another “light show” that is even 

more useful than it is entertaining. Real-time analysis (RTA) mode 

uses the Band Gain LEDs to show you exactly which frequencies 

are present in the audio signal that is passing through the 

DEQ230D. This is an extremely useful tool that has been a 

mainstay of  serious sound reinforcement engineers for decades. 

 

To enter RTA mode, press the two leftmost [BAND SELECT] 

buttons on Channel A (25 Hz and 31 Hz). Immediately, the 

DEQ230D will start giving you visual feedback as to what is going 

on with the instrument or mix that is being processed. RTA mode 

monitors the outputs of  the DEQ230D, so when you press the 

[BYPASS] button you will be seeing what you are hearing: the 

unprocessed signal. 

 

Metering modes 

 

Like any professional audio product, the DEQ230D allows you to 

configure the response of  the Band Gain LEDs while in RTA 

mode. Use the [DOWN] and [UP] buttons to select between the 

four different settings: 
 00 

Peaks are not held. 

Peaks are held for one second. 

 02 

Peaks are held for two seconds. 

 

Peaks are held until the metering mode is switched 

 

 

to another setting, or until you exit RTA mode. 

 

If  you want to reset the peaks while they are being held in 

Momentary 1, Momentary 2, or Continuous settings, press the 

[DOWN] and [UP] buttons at the same time.