ADAM Audio Delta Active Version - Handbuch (Seite 10)

10
4.4 Input Gain
‘Input Gain’ regulates the overall input sensitivity of
your loudspeaker within a range of -10 to +10 dB, and
controls the volume of your loudspeaker equally in all
frequency ranges.
4.5 High Gain
Whereas the ‘Input Gain’ raises or lowers the overall in-
put sensitivity up to +/-10 dB, the ‘Tweeter Gain’ works
within the frequency range of the tweeter only, raising
or lowering up to +/-4 dB.
This is a considerable change of the sound characteris-
tic and should be used with caution. However, to meet
difficult room acoustics or adapt to a special taste the
Tweeter Gain will serve you well.
4.6 High / Low Shelf EQs (Room EQs)
The other two controls operate in a different manner.
The ‘High Shelf’ and the ‘Low Shelf’ are shelving filters,
which progressively raise or lower up to ±6 dB.
Whereas the gains raise or lower a specific frequency
range as a whole, the shelving filters do not alter a whole
frequency band but alter in this band: from a certain point
(6 kHz respectively 150 Hz in this case) the frequencies
are gradually being changed (see fig.).
4. Speaker Adjustment
Room EQ <150 Hz for low frequencies
below 150 Hz Room EQ >6 kHz for high frequencies
above 6 kHz