Holm HOLMFIR User Manual page 59

Driver Correction - Correcting a Bass/Subwoofer (DSPre-2,3-way)
This is usefull if you want to have full control over just how much extra gain the DSPre
will put into your system. The compromise is:
Several measurements on different systems have shown that a maximum gain of 6dB is a
good compromise, but your system can of course change the determining factors
HOLM Acoustics
The more gain, the less dynamic range
The less gain, the less linearity
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HOLMFIR User Guide v0.4.4
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