Crossover Diagrams - dbx DriveRack User Manual

Appendix A
A.5 Crossover Diagrams
DriveRack™ PA User Manual
38
out positive affect. You may be able to see if a lifted band is a mode by manually adjusting
a lifted EQ band - if no change in the EQ is perceived, you probably are seeing a mode in
your
frequency response. To reduce the effect of this mode, try different microphone positions
and adjust the location of your speakers, then repink the room for a more effectual Graphic
EQ adjustment.
Adjust Cross Over Output Gains
If your system setup or the response you have chosen results in the Auto-EQ lifting or cut-
ting a number of consecutive bands of the Graphic EQ, you can adjust the level of the asso-
ciated cross over output gain to match the average boost or cut in the graphic EQ and re-
pink your room. This time, the adjustment of the Graphic EQ bands will be less "heavy hand-
ed" and the
system will sound better having fewer phase problems and a lower noise floor than a more
aggressively adjusted Graphic EQ. With the rest of your system properly adjusted, the Auto
EQ can compensate for room resonance and adjust to suit personal taste without large excur-
sions in the Graphic EQ bands.
L
L
L
HP
R
R R
2X2
L
HP
R
BP
+
BP
2X5 (3-band)
LH
HP
RH
L Mono
+
BP
2X3(2-band)
LH
L
RH
R
LM
RM
L Mono
2X6 (3-band)
DriveRack
LH
L
HP
RH
R
LL
BP
RL
2X4(2-band)
LH
HP
RH
LM
BP
RM
LL
BP
RL
™
PA
®