11
Eng
lish
4
.
Controls/Speaker Adjustment
High Gain
Whereas the ‘Input Gain’ raises or lowers the overall input sensitivity up to
+/-10 dB, the ‘High Gain’ works only within the frequency range of the tweet-
er (>1.800 Hz) only, raising or lowering up to +/-4 dB.
High / Low Shelving
The other two controls operate in a different manner. The ‘High Shelve’ is
a shelving filter that progressively raises or lowers above 6 kHz up to 6 dB.
Whereas the gains raise or lower a specific frequency range as a whole, the
shelve filters work differently. They 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 figure 8 & 9).
Figure 8
ROOM EQ >6 kHz for the high
frequencies above 6 kHz
Figure 9
ROOM EQ <150 Hz for the low
frequencies below 150 Hz
4.3
4.4