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Beyond Stereo to 5.1 Surround
When using a subwoofer for the LFE (Low Frequency Effects) channel in a 5.1 surround
monitoring system, rotate the low pass filter all the way to the right to the 130Hz position.
Note that the LFE channel is set with an additional 10dB of monitoring gain. To set this
level, we recommend using 2-octave wide, band-passed, pink noise from 20 to 80Hz for the
LFE channel and 500 to 2,000Hz for the near-field speakers. After adjusting each
near-field monitor one at a time to 85dB SPL, adjust the LFE channel 10dB louder to 95dB
SPL.
C
enter
Left
Ri
gh
t
30°
30°
SPL Meter
110°
110°
LFE
LFE
Le
ft
Su
r
r
ou
n
d
R
ight
S
u
rr
oun
d
Figure 4
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