ALLEN & HEATH ZED 420 User Manual page 15

HF
6
12k
-15
3k
1k
700
500Hz
7
HM
-15
180
70
45
35Hz
8
LM
-15
LF
80Hz
-15
Allen & Heath
MONO INPUT CHANNEL
6
+15
4k
6k
15k
+15
7
250
400
1k
+15
+15
EQ IN
8
HF EQ
The HF (High Frequency) equaliser affects the frequency response
of the higher audible frequencies. The corner frequency of 12kHz is
around 3dB from the maximum cut or boost of the circuit.
dBr
20.00
15.00
10.00
5.00
0.00
-5.00
-10.00
-15.00
-20.00
20.00 Hz 100.00
HMF EQ
The HMF (High Mid Frequency) equaliser affects the upper middle
of the audible frequency range. The frequency graduations on the
sweep control are the centre frequencies of the EQ.
dBr
20.00
15.00
10.00
5.00
0.00
-5.00
-10.00
-15.00
-20.00
20.00 Hz 100.00
LMF EQ
The LMF (Lower Mid Frequency) equaliser affects the lower middle
of the audible frequency range.
dBr
20.00
15.00
10.00
5.00
0.00
-5.00
-10.00
-15.00
-20.00
20.00 Hz 100.00
16
1000.00 10000.00
1000.00 10000.00
1000.00 10000.00
ZED-4 BUS User Guide
30000.00
30000.00