Surround Monitoring 139
DM1000 Version 2—Owner’s Manual
Surround Functions
11
The following diagram shows an example in 5.1 Surround mode and 3-1 Monitor Matrix
mode.
•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
subwoofer 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.
Note: You can patch the Surround Monitor Matrix channels to the output connectors.
Presets Parameters
No. Title HPF 1, 2, 3 LPF1 LPF2 ATT 1 & 2 AMP
1DVD LFE80Hz 80–12 80–24 80–24 0 10
2DVD LFE120Hz 80–12 120–42 80–24 0 10
3Movie LFE80Hz 80–12 80–24 80–24 –3 10
4Movie LFE120Hz 80–12 120–42 80–24 –3 10
5Bypass 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)