Manual-10
Filters & Subwoofer
Parameters
Pressing the FILTER/SUB button displays this edit page:
FLT ON | LOW SHELF HIGH SHELF
OUT 1+2| 100Hz 0dB 10kHz 0dB
Pressing the FILTER/SUB button again displays the
SUBWOOFER SETTINGS edit page:
SUB | LOW CUT HIGH CUT LEVEL
| 20Hz 200Hz 0.0dB
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Description
Shelf/Cut Filters tailor the upper and lower frequency
ranges of personal in-ear monitors.
A Low-Cut (aka High-Pass) Filter is often used to remove
frequencies below the lower limit of the transducer . Use the
Low-Cut Filter to remove low frequencies that tend to bottom
out less expensive earphones. Judicious use of the Low-Cut
Filter together with the SUB Output and a tactile thumper or
seat shaker can tidy up an in-ear mix considerably.
A High-Cut (aka Low-Pass) Filter is used to remove
frequencies above a particular frequency. You might use the
High-Cut Filter to limit the frequency range to the upper
cutoff of 15 kHz common to many wireless transmitters.
Low- and High-Shelf Filters are similar to the simple bass
and treble tone controls found on most home stereos. Due to
those pesky laws of physics, some in-ear monitors benefit
from a slight boost in the bottom end using the LOW SHELF
filter centered around 100 Hz or so. Similarly, a slight boost
in the 8 kHz to 12 kHz range of the HIGH SHELF filter helps
brighten and add some “air” to the overall mix.
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Figure 1. Shelf/Cut Filter Characteristics
-30
+14
-28
-26
-24
-22
-20
-18
-16
-14
-12
-10
-8
-6
-4
-2
0
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20
20k
50
100
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500
1k
2k
5k
10k
d
B
Hz
SHELF
CUT
SHELF
