AudioControl DQX - Manual (Page 23)

Owner’s Enjoyment Manual
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Still Sounds Distorted: Look at the frequen-
cies that you have selected for Para EQ 1 and Para
EQ 2 and see how much boost or cut you have
applied. Then look at those same frequencies on
your Graphic EQ. If you have boost applied to the
same frequencies on both types of equalizers,
there is a strong chance you are overdriving your
speakers and amplifiers at that frequency.
Output Voltage LED’s Don’t Light Up:
If your system is playing music but none of the
output LED’s are on, there is a good chance that
the output voltage of your source unit is not that
strong. Now before you call us and say, “The guy
at the store said my radio has high-voltage out-
put”, you might want to face the fact that there is
“Engineering Voltage” and there is “Marketing
Voltage”. Without picking on any particular
source unit, remember that you do get what you
pay for.
UNDER THE COVER
1) Input Grounding: For most systems you
can leave this jumper set in the BALANCED
position. In some systems, the source unit may
look for a ground through the RCA connection to
the amplifier and create a ground loop, which in
turn can cause a whine (not the type that comes
in a bottle) in your system. In that event, you
should go ahead and change the four jumpers to
the UNBALANCED position.
2) Ground Isolation Selector: Occasionally
alternator noise may appear in a system because
the source unit and amplifier are using different
grounding schemes. To help in this situation, we
have provided alternative grounding connections.
Make sure your system is turned OFF before you
move these jumpers.
Figure 15:
Inside of DQX
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Shipped Options
Input
Grounding
Balanced Unbalanced
Ground
Isolation
Isolated 200 ohms or Ground
Choice of
beverage
Micro-brew Latté