Filter
Top Products
BASIC EQUALIZATION
The DEQ 30 is a highly advanced signal processor. However, “highly advanced” does not mean difficult to use.
There are two different levels of use for the DEQ 30. This section explains the basic utilization of the DEQ 30. To
proceed, it is important that you familiarize yourself with the user interface display information and controls
outlined in the previous section as the functionality of the DEQ 30 will be referenced but not outlined.
PREPARATION FOR EQUALIZATION
The DEQ 30 is one of many pieces in a system tuning process to achieve an awesome sound system. The purpose
of equalization is only to smooth out slight imperfections in your system frequency response. You should add an
equalizer to a system not as a solution to a problem but as an addition to an already awesome system. To take full
advantage of the DEQ 30, first optimize your system setup without it.
Constructive and Destructive interference occurs when two or more speakers (or a speaker and a reflective
panel or baffle) interact with each other in such a way that creates erratic but repetitive frequency response errors.
The response errors are determined by the frequency (wavelengths) and the speaker locations and phase
relationships relative to the listening area. This type of frequency response error is different from resonance errors
due to erratic nature (non-smooth peaks or dips) in the frequency response as well as the repetitive shape of the
frequency response error itself.
Non-equalizer solutions
First, locate how the this problem is being created. What two drivers (or reflective surface or baffle) are causing
this problem. Try changing the polarity of one the speakers to see if the situation improves. For high-frequency
problems, try changing mounting angle and position as well as the polarity of the tweeters. For problems with
drivers on the same channel, try changing the crossover point.
Equalizer Solutions
If the problem occurs between channels. Use the DEQ 30 to equalize the left and right channels separately. First
pan to the left channel and smooth out non-linearities by using the DEQ 30 as a cut device first. Then pan to the
right channel and repeat. Then sparingly use the DEQ 30 to boost the deficient frequencies for the left and right
channels separately. Periodically listen to your system during this process.
22
31