Orion Car Audio DEQ 30 manual User Interface, Digital Display

USER INTERFACE

The user interface controls are designed to be concise and user friendly. Listed below are the descriptions of the user interface functions.

DIGITAL DISPLAY

ZONE	Indicates which preset Zone you are
	working in. There are four preset
	zones that store all information. To
	access the different zones, simply
	press the button marked “Zone.”
LEVEL	Shows the amount of boost or cut
	in dB of a given frequency dis
	played in the frequency window.
	Range from -12dB to +12dB in 1dB
	increments.
FREQUENCY	Displays which frequency
	parameter the DEQ 30 is
	currently adjusting.

• Zone 1 Selected

• 0 dB of equalization

• Frequency selected 25 Hz

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Crossover Points & Speaker Polarity Phase Shift Problems are cancellations caused by destructive interference as a result of integrating two drivers with crossovers. The above situation is a three way system with crossover points of 100 Hz and 2,500 Hz. In both situations, the driver interaction has caused a destructive interference at the crossover frequency.

Non-Equalizer Solutions

The first thing to try is to change the polarity of one of the drivers. A general rule of thumb, change the polarity of the driver that has a lower operating band. In the above situation, first try inverting the polarity of the midrange to see if there is an improvement. If this does not improve the situation, return the polarity to its original setting and try using different crossover points for both the midrange and tweeter. Remember to use crossover frequencies that are at least as high as the recommended operating range. When dealing with multiple response errors, start with the highest frequency problem area and work downward.

Equalizer Solutions

Use the DEQ 30 as a cut only device to try to smooth out the non-linearity of the system. Cut frequencies gradually starting with the center point of the problem area. Do not cut the centered band to get the frequency response to the flat position for it will dip below when you change adjacent bands. Periodically listen to your system during this process to make sure the changes you make do not adversely affect the detail and sound quality of the system.

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