Velodyne DD-10+ - Resources

www.velodyne.com
32 - Digital Drive
PLUS
Series User’s Manual
RESOURCES
What to do if Your Surround Sound System Also Does Equalization
Most surround sound systems also perform an automatic optimization of your system. You probably have
already done this for your existing system. When you add in the Digital Drive
PLUS
subwoofer, we recommend
you:
1. Place your subwoofer in its permanent location.
2. Run the Digital Drive
PLUS
Auto-EQ
PLUS
. This gives the surround sound system a nicely bandpassed bass
output for blending well to the satellites to use during its automatic equalization process. If you run the sound
system automatic equalization routine before you get the blend correct, the sound system equalization
algorithm may turn the subwoofer way down or up due to a peak or dip where the subwoofer blends to the
speakers.
3. Run the surround sound automatic equalization after the Digital DrivePLUS Auto-EQPLUS even if you
have previously run this before the subwoofer was added to the system. The surround system automatic
equalization now has a smoothly blended bass region for measurement and should now make the correct
choices during its run.
However, due to dierent automatic equalization systems having dierent algorithms, you might want to
experiment with the opposite approach; running the surround sound equalization process rst and then the
Digital Drive
PLUS
EQ. You can compare which order of the equalization processes gives sound that is most
pleasing to you. Also be sure to examine your nal settings to be sure that you didn’t end up with your sound
system’s LFE channel set very low or very high and that the level at the Digital DrivePLUS subwoofer is the
opposite to compensate. Ideally the channel level will be somewhere near 0 dB and the Digital Drive
PLUS
subwoofer level at or below 50 or 60.