Initial Eq Settings - µ-Dimension Glow DSP8 Instruction Manual

Initial EQ Settings

If the signal source is an aftermarket unit, you can usually assume
that the signal output frequency response is flat throughout its
frequency range, and no initial EQ adjustments will be required at this
point. However, make sure all equalizer controls and loudness
compensation are turned off.
However, if an OE source unit is being used, then you must
determine if the OE source signal outputs are full range or band
limited, and if the frequency response is flat and smooth or if it has
equalization applied. Many OE source units have some level of
equalization incorporated in their outputs to correct for the very poor
response characteristics of the factory speakers.
In your aftermarket audio system, the speakers will be much higher
quality than even the best OE speakers, and you do not want any OE
source "corrective" equalization affecting the signal. Hence, you will
want to start by adjusting the EQ to neutralize the factory equalization
on the signal coming from the OE source unit. You will likely apply
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