Velodyne DIGITAL DRIVEPLUS DD-15+ User Manual - page 37
www.velodyne.com
Digital Drive
PLUS
Series User’s Manual - 31
that of the largest peak. Drag the frequency marker horizontally to the frequency of the peak and then down in
level. A horizontal line with a diamond-shaped marker at each of its ends appears at the eQ’s minimum. This
horizontal line is the filter’s bandwidth control.
c. Use your mouse to click one of the bandwidth markers and horizontally drag it in or out to adjust the eQ width.
Try to find the value that performs the least modification to the frequency response nearby the peak. Keep in
mind that large lumps are still peaks; they just have a wider bandwidth (or lower Q).
d. Continue to the next highest peak, repeating Steps 14a through 14c.
e. If any dips are of higher concern than the rest of the peaks, then proceed to use Steps 14a through 14c for
those, but pull the EQ filter marker up in level.
f. Proceed cautiously with the dips, as you are very likely to find one or more that cause you to want to put
multiple filters very near each other to get “enough boost”. This will be a null, which can show very little change
after applying a lot of acoustic power at its particular frequency. It is best not to eQ these very much.
15. now you can modify the settings for the presets if you want. The most common settings to focus on for
preset adjustment are the preset contour frequency, contour level and the Theater/Music setting. However,
if you want to change the crossover frequency, crossover slope, phase and polarity for each preset, you
should do so now following the procedure outlined in Steps 8 and Steps 10 through 13.
16. If you are using the Windows Setup program, exit Manual-EQ by clicking Save and Exit. If you are using the
TV screen interface,Vselect Exit/Save in the upper right of the screen and then select Yes to save.
17. Stop the Sweep Tone cD.
18. If you are using the windows Setup Program, keep it open. If you are using the TV screen interface, push
1-2-3-4-5 on the remote and then press Select quickly after.
19. If you are using the windows Setup Program, wait for it to reconnect to the subwoofer. If you are using the
TV screen interface, the subwoofer is already connected to the TV.
20. Play the appropriate media through the Digital DrivePlUS subwoofer for the preset you want to change.
Proceed to modify contour frequency, contour level and the Theater/music settings.
a. For each preset, decide upon a frequency for the contour. Set the contour level to somewhere between 2.0
and 4.0 so you can hear the change. listen to your media and adjust the contour frequency until the contour is
boosting the correct frequencies to your taste.
b. Then adjust the contour level to your taste. These values are proportional to, but not equal to a dB.
c. while listening to the media, change the servo gain, or Theater/music setting. A setting of 8 has the most gain
and the lowest distortion as noted previously, while 1 has the least gain. even in the 1 setting, the Digital
DrivePlUS subwoofers have lower distortion than conventional subwoofers. Select the setting that yields the
best appropriate accuracy for your media.
21. At this point, you can adjust the subsonic filter and subsonic filter slope. Adjust them with preservation
of dynamic headroom in mind for dynamic media with little content below 20 Hz and maximum extension
for media with extreme extension, but little dynamic need. The factory default setting works well in most
cases. If you are playing content that is particularly dynamic with little sub-20 Hz content, it is wise to raise
the frequency. Media with extremely low bass content but little dynamics may be better reproduced with
a lower slope.
22. Finally, adjust the volume for your new presets to match the appropriate satellites or lend the correct
character to your playback.
23. Make sure you save your settings before leaving the Windows or TV screen interfaces or powering off the
subwoofer using the Save to DD+, Save, Save As…, or Save To File commands for the windows program
or Save/Exit and Yes for the TV screen interface. If you don’t save your changes, they are lost when you
exit Manual-EQ or the subwoofer turns off.