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5.0.2 Advanced tone control matrix display
It is the task of the matrix display to show the frequency area affected by the tone control that is
currently being altered. In this manner you may visibly estimate the acoustical impact of the cur-
rent setting. While the upper row stands for boost in the designated frequency regions, the lower
row symbolizes a cut. The entire frequency range is divided into three regions representing the
low, mid and high frequency band. The brightness of each LED corresponds to the boost or cut
gain.
Example
To exemplify the functioning of the LED matrix display the illustration 4.11 shows how the tone
controls position is in conjunction with the actual frequency response and the displayed LED
brightness.
CHANNEL 2
INSTRUMENT / LINE / MIC
VOL
frequency response
50Hz
100Hz
Illustration 4.11: Conjunction of frequency response and LED matrix display
Control position
LO
HI
200Hz
300Hz
500Hz
1kHz
ADVANCED
SOUND CONTROL
F R E Q U E N C Y
LO
MID
HI
LED matrix
display
2kHz
3kHz
5kHz
+12dB
0dB
-12dB
10kHz
21
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