Velodyne Acoustics Digital Drive Subwoofer - Manual (Page 12)

Velodyne Digital Drive User’s Manual Page 7
5. Insert the XLR microphone cable’s 3-pin male plug into the MIC INPUT jack (location 7 on Figure 2)
on the back panel of the subwoofer. For DD-15 and DD-18 units, a microphone jack is also located
on the front of the unit for convenience.
6. Slide the microphone (male connector end first) down through the open, circular sleeve of the
tabletop microphone stand. Position this assembly at a desired listening position from your
subwoofer.
NOTE: The Digital Drive Accessory Kit includes a microphone stand adapter (1/2”-27 thread) for use
with professional mounting stands. Be sure to first remove the inner thread piece (3/8”-16)
before using.
7. Connect the XLR microphone cable’s female jack end with the male connector end of the
microphone.
8. Sheath the microphone pickup with the foam windscreen cover as a protection against dirt and
airborne contaminants.
A Word About Interconnect Cables
When installing your new Velodyne subwoofer using the line level connections, you should always use
shielded phono cables. There are many quality cables available today, most any of which will work
perfectly well. We do recommend that you keep the length of cable as short as possible to avoid any
potential noise problems.
When routing cables, try to keep them away from equipment that generates significant noise such as
industrial or digital equipment.
A Word About Connecting More Than One Subwoofer
If you are connecting more than one DD subwoofer to your system, you set each woofer up separately,
and then hook them together in a “daisy-chain.” Choose one sub for all the connections described
below (we’ll call this the “primary” sub), and then connect an RCA jack from the THRU RCA jacks of
the “primary” to the Input jacks of the “secondary” sub. You will also need to obtain a “Mouse Extension”
serial cable (available at any computer store, from your Authorized Velodyne dealer, or from Velodyne
directly) and connect the RS-232 OUT port of the primary sub to the RS-232 IN port of the secondary
sub. Then, all runtime commands directed at the primary sub (such as select preset, volume, etc.) will
be communicated to the secondary sub automatically through the serial cable. If you have more than
two subs in your setup, simply continue the daisy chain from the secondary sub to the next sub in the
line (using both RCA and serial connections) and so on.
Note that the daisy chain connection ONLY allows the woofers to communicate basic “run-time”
commands such as volume, and preset. You will want to set up and equalize each sub independently
and optimize it for the room before daisy chaining the subs together.
Onscreen Programming and Setup
BEFORE YOU BEGIN: Once the installation has been completed, you can use your subwoofer without
performing ANY of the setup steps below. Simply use the remote to set the volume, and select the
preset that most closely matches your listening material, and enjoy! However, to reap the maximum
benefits of Digital Drive technology, read on!