Filter
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72 DMM 12BC
Operation
The centre frequencies of the sub-bands are assigned at half-octave intervals at 250Hz,
350Hz, 500Hz, 700Hz, 1000Hz, 1400Hz, 2000Hz, 2800Hz, 4000Hz, 5600Hz, 8000Hz and
11300Hz. The filter quality is 2.8710.
Figure 60: Adjustment range for the EQUALIZER function
MUTE
Figure 61: Adjustment range for the function
The respective channel is switched to mute by briefly pushing the input or output rotary knob,
with the exception of the "HEADPHONE" rotary knob. The MUTE function is indicated by the
steady flashing of the LED ring. Another brief press or turn of the rotary knob removes the
MUTE function.