Velodyne HGS-15X, Owner'S Manual

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External remote jack
This connection allows an auxiliary infrared remote receiver "eye" to be installed and
placed where most convenient. This option is usually only required when the
subwoofer is to be part of a custom installation in which the built in "eye" (located
adjacent to the speaker on the front baffle) will be hidden in a location where it can
not adequately receive signals from the remote.
High pass crossover switch - 80Hz (THX)/100Hz
This switch selects the frequency for the high pass crossover outputs. This
crossover is functional on both line and speaker-level outputs. Smaller speakers with
limited low frequency ability may prefer the higher 100Hz setting which will reduce
the low frequencies sent to them. Larger speakers with greater low frequency output
may be able to handle the 80Hz setting without strain.
Power switch
The master power switch is located on the right half of the unit. This rocker style
switch is the main on/off for the unit. This switch should be set to position 1 (up)
for on, and 0 (down) for off. If the unit is to be left unused for an extended period of
time, the master power switch should be turned off.
Detachable power cord
Allows for easy replacement should the original be damaged.
Line-Level Connection
Figure 1 shows connection to a pre-amplifier's main outputs and returning
them to your amplifier inputs.
When installed in this fashion, your satellite speakers will be crossed over at 80/
100Hz which removes the lower bass from your amplifier and speakers, enabling them
to do a better job reproducing high frequencies. By utilizing this method, you will
have a bi-amplified system, gaining improved power and headroom for your system.
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Interconnect Cables
When installing your new Velodyne subwoofer using the line level connections,
you should always use shielded phono cables. There are many decent 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 using speaker level connections, use a decent quality speaker cable that
mates well with the connectors. Be very careful to avoid any loose strands or frayed
wires which may result in a short, which may damage your equipment. Cables of
extremely large size are typically not required. Extremely large gauge wire may not
properly fit in the binding posts, resulting in a poor connection and possible short
circuits.
Placement
True subwoofers operate at extremely low frequencies which are primarily non-
directional. While it is recommended that the subwoofer be placed on the same plane
as the satellite speakers, room and system conditions often dictate otherwise. Keep
in mind that frequency response and output level can be drastically influenced by
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THX Ultra 2 Operation:
On the back panel of the subwoofer select the THX Subwoofer volume
level and the Subsonic, X-Over, and High-Pass Crossover THX settings.
placement, depending on the acoustic properties of the listening room. Typically,
the optimum location for a subwoofer is tucked away in a corner of your listening
room. This location will usually offer the greatest output levels and optimum low
frequency extension. The worst location for a subwoofer it typically far away from
any walls, and close to the center of your room. Avoid these locations when possible.
When using a pair of Velodyne subwoofers in stereo, it is preferable to place each
subwoofer by the satellite of the same channel.
Caution! This subwoofer has electronics built into the cabinet. Do not place the
cabinet next to sources of heat such as furnace registers, radiators, etc. Do not
place the unit near sources of excessive moisture, such as evaporative coolers,
humidifiers, etc. The power cord should be routed in such a way that it will not
be walked on, pinched, or compressed in any way that could result in damaging
the insulation or wire.