Krix MX20 Installation Manual page 15

Standing-wave issues
Small to moderate size rooms with standard
height ceilings are prone to standing wave
issues below 500Hz, resulting in peaks and
dips in the system response. Automated DSP
based solutions can be good at addressing
these issues but results will vary depending
on the algorithms employed by the DSP and
the number and positions of the microphone
measurement points used
equalisation process. Small to moderate size
rooms tend to skew the bass and mid-bass
response of the system due to the close
proximity of the sidewalls and ceiling to the
speaker array. Applying some cut to the mid-
bass (100-250Hz) region in small to medium
rooms can help to combat the issues
mentioned above.
Highly treated room under 8m deep
Frequency
63Hz
125Hz
250Hz
500Hz
1kHz
2kHz
4kHz
8kHz
16kHz
Highly treated room over 8m deep
Frequency
63Hz
125Hz
250Hz
500Hz
1kHz
2kHz
4kHz
8kHz
16kHz
EQUALISATION
Automated Room Correction
and Speaker Equalisation.
There are many room equalisation products
on the market that attempt to combat the
issues highlighted previously, but these
systems often target a flat frequency response
which can sound too bright, forward and harsh
in an average home cinema environment.
Some also pull too much energy out of the
during the
mid bass region, resulting in a 'thin' sounding
system that lacks 'warmth' and 'weight'. Listen
for these issues when evaluating the results
of an automated room correction system.
Gain
-3dB
-3dB
-3dB
-2dB
-1dB
0dB
0dB
0dB
+4dB
Gain
0dB
0dB
0dB
0dB
0dB
0dB
0dB
0dB
+3dB
Manual Graphic Equalisation.
Manual graphic equalisation allows for a
gentler equalisation curve to be applied
allowing the large 'cinema sound' of the MX
system to be maintained. Below are some
suggested equalisation settings to use for
the MX systems.
Use these settings as a guide when equalising
an MX system:
Lightly treated room under 8m deep
Frequency
63Hz
125Hz
250Hz
500Hz
1kHz
2kHz
4kHz
8kHz
16kHz
Lightly treated room over 8m deep
Frequency
63Hz
125Hz
250Hz
500Hz
1kHz
2kHz
4kHz
8kHz
16kHz
15
Gain
-3dB
-3dB
-3dB
-2dB
-1dB
0dB
0dB
0dB
+1dB
Gain
0dB
0dB
0dB
0dB
0dB
0dB
0dB
0dB
0dB