• BASS MANAGEMENT
You can set the filter and attenuator settings for each Surround Monitor Channel using eight
preset Bass Management modes. The following presets are available:
ATT1: Adjusts the level difference between LR and LsRs.
ATT2: Adjusts the level difference between C and Bs.
AMP: Corrects the LFE channel level.
HPF1–3: Cut the low range so that the speakers’ supporting frequency ranges will not interfere with the sub-
woofer signals.
HPF1–2: Cut the high range so that the subwoofer’s supporting frequency ranges will not interfere with other
speakers’ signals.
You can set the Bass Management parameters in the following ranges:
The HPF 1, 2, 3, and LPF 1 & 2 values indicate a cut-off frequency and a filter response. For example, “80-12”
means a cutoff frequency of 80 Hz and a filter response of –12 dB/octave.
“L” means Linkwitz filter. Other filters are Butterworth.
About the Presets
(1)
DVD LFE80Hz
This is a preset optimized for DVD-Video production. The LFE playback bandwidth is set up
to 80 Hz. When using this preset, we recommend that you use an external device to apply an
LPF (fc=80 Hz, –24 dB/oct) to the LFE master source.
To monitor audio on DVD-Audio or SACD discs, change the LFE level (AMP) and LPF (LPF1)
to 0 dB and THRU, respectively, if necessary.
The LFE output gain on some DVD players and decoders may already be set to +10 dB. To
monitor the output from such devices, change the LFE level (AMP) to 0 dB.
(2)
DVD LFE120Hz
This is also a preset optimized for DVD-Video production. This preset is the same as preset (1)
mentioned above, except that the LFE playback bandwidth is set up to 120 Hz. Use this preset
to monitor standard LFE signals recorded on DVD-Video discs that include the high-end fre-
quency ranges (120 Hz).
(3)
Movie LFE80Hz
This preset is the same as preset (1) mentioned above, except that the output level of surround
channels is set to –3 dB when the Monitor Matrix mode is 5.1 or 6.1. This preset is suitable for
movie production.
When using this preset, we recommend that you use an external device to apply an LPF
(fc=80 Hz, –24 dB/oct) to the LFE master source.
Presets Parameters
No. Title HPF 1, 2, 3 LPF1 LPF2 ATT 1 & 2 AMP
1
DVD LFE80Hz 80–12 80–24 80–24 0 10
2
DVD LFE120Hz 80–12 120–42 80–24 0 10
3
Movie LFE80Hz 80–12 80–24 80–24 –3 10
4
Movie LFE120Hz 80–12 120–42 80–24 –3 10
5
Bypass THRU THRU MUTE 0 0
THXD
THX DVD 80-12L 120-42 80-24L 0 10
THXF
THX Movie 80-12L 120-42 80-24L –3 10
THXM
THX Music 80-12L 120-42 80-24L 0 10
Note:
•If you select preset THXD or THXF, you cannot change the parameters.
•If you select preset THXM, you can switch AMP between 10 dB and 0 dB. However, you cannot
change other parameters.
Parameters Range
HPF 1, 2, 3
THRU, 80-12, 80-12L, 80-24, 80-24L
LPF1
THRU, 80-24, 80-24L, 120-42
LPF2
THRU, 80-24, 80-24L, MUTE
ATT 1 & 2
0 to –12 dB (1 dB steps)
AMP
0 to +12 dB (1 dB steps)