bk reference 31 User Manual
29
From Remote
From Front Panel
Action
1
À(PAUSE) or §(STOP)
(UP) or (DOWN)
move to Crossovers + LFE
2
SEL or ENTER
(ENTER)
activate SETUP CROSSOVERS + LFE
3
À(PAUSE) or §(STOP)
(UP) or (DOWN)
move to Crossovers + LFE
4
¶
(REW) or
•
(FF)
VOLUME KNOB
adjust frequency to desired value
Set the high pass filters slope -
A crossover doesn’t simply send all content above 81 Hz to the main speakers
and all content below 79 Hz to the sub. Instead there is a gradual transition. The crossover point is the frequency
at which the amount of information in the sub and main speaker is equal. The crossover slope determines how
gradual or abrupt this transition occurs. More gradual slopes generally result in a smoother transition from main to
sub. However, gradual transitions can cause distortion in small main speakers because too much bass is sent to
them. Gradual transitions with higher crossover settings can also cause the perceived location of a sound to move
from the correct main speaker to the sub’s location. THX speakers are specifically designed to use a 24 dB slope
for the subwoofer and a 12 dB slope for the main speakers.
at which the amount of information in the sub and main speaker is equal. The crossover slope determines how
gradual or abrupt this transition occurs. More gradual slopes generally result in a smoother transition from main to
sub. However, gradual transitions can cause distortion in small main speakers because too much bass is sent to
them. Gradual transitions with higher crossover settings can also cause the perceived location of a sound to move
from the correct main speaker to the sub’s location. THX speakers are specifically designed to use a 24 dB slope
for the subwoofer and a 12 dB slope for the main speakers.
From Remote
From Front Panel
Action
1
À(PAUSE) or §(STOP)
(UP) or (DOWN)
move to High Pass
2
¶
(REW) or
•
(FF)
VOLUME KNOB
adjust filter slope to desired value
SETUP SPEAKERS
1 Speaker Size
2 Speaker Location
3 Speaker Levels
4 Crossovers + LFE
5 Room Equalization
1 Speaker Size
2 Speaker Location
3 Speaker Levels
4 Crossovers + LFE
5 Room Equalization
next item SEL select
MENU setup system
MENU setup system
4 Crossovers + LFE
SETUP CROSSOVERS + LFE
1 Crossover 80.0 Hz THX
2 High Pass 12.0 dB THX
3 Low Pass 24.0 dB THX
4 LFE Level -20.0 dB
1 Crossover 80.0 Hz THX
2 High Pass 12.0 dB THX
3 Low Pass 24.0 dB THX
4 LFE Level -20.0 dB
next item adjust
MENU speaker setup
1 Crossover 80.0 Hz THX
Crossovers + LFE
CROSSOVER 80 HZ
SETUP CROSSOVERS + LFE
1 Crossover 80.0 Hz THX
2 High Pass 12.0 dB THX
3 Low Pass 24.0 dB THX
4 LFE Level -20.0 dB
1 Crossover 80.0 Hz THX
2 High Pass 12.0 dB THX
3 Low Pass 24.0 dB THX
4 LFE Level -20.0 dB
next item adjust
MENU speaker setup
2 High Pass 12.0 dB THX
HIGH PASS 12.0 DB