Orion Car Audio DEQ 30 manual Analog Inputs, OEM Integration With Balanced Inputs

ANALOG INPUTS

OEM Integration

with Balanced Inputs

Capacitor Value C1=100µF non-polar capacitor Resistor Value R1= 20 to 100

Connect A & D to the chassis ground of the radio Connect B to the left speaker positive

Connect C to the left speaker negative wire Connect E to the right speaker positive Connect F to the right speaker negative wire

COM

PORT

RESET

POWER

REM
GND	12V

DIGITAL TOSLINK

CTOS/ OAX

	OUT
	IN	ANALOG
AN
	AL
D
IG OG/
	ITAL	COAX
		L

OUTPUT

L

R

R

RCA

	L	ANALOG
	R		INPUT
RCA		BALANCED
				INPUT
		L
			R	ADJUST

L

R

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Time alignment errors are caused by speakers that are located at different distances relative to the listening position. Time alignment errors are difficult to detect only using an RTA. In some cases, time response errors can be indicated by a shelving effect of a particular driver (in the above situation the tweeters) in such a way that the response is smooth but appears to be disjointed from the adjacent drivers.

Non-Equalizer Solutions

This problem can be better identified by using a time delay device (usually digital) to delay the apparent louder drivers. In the above situation, this would be the midrange. When using time alignment, first integrate the midrange and tweeters then add the woofers. If you delay a set of drivers and the response does not change, then the problem is not time related and you should employ methods discussed in “Output Level Incompatibility Problems.”

Equalizer Solutions

Use the DEQ 30 first 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. When boosting the DEQ 30 is required, take care not to exceed the maximum undistorted output level of the DEQ 30. For reference, an Illuminated “Clip” LED indicates that the maximum output level has been exceeded. Periodically listen to your system during this process to make sure that the changes improve the system.

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