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Installation
Your new VA-810/1012XII subwoofersystem provides for a number
of installation options. Read all the installation information below in
order to determine which installation option is best for your system.
Remember to perform all installation proc edures with system
powe r turned off.
Inputs
Your new VA-810/1012XIIsubwoofer isequipped with both speaker-
level and line-level inputs. Use the LINE-IN jacks when connecting
your subwoofer to a pre-amp, signal processor, or line-level cross-
over.
The
FROM AMPLIFIER jacks connect directly to the speaker
outputs of a integrated amplifier or receiver. Your amplifier section
will notice no additional loading effects when you use these inputs
because of their high impedance.
Note
00
not use both LINE-IN
and
FROM
AMPLIFIER
inputs simulta-
neously.
Volume control
This control allows you to balance the output from the subwoofer to
the main speakers in your system. This contr.olshould be set to
achieve similar volume level from both the main speakers and
subwoofer.
Low-pass crossover
Both sets of inputs sum the left and right channels together and the
resulting signal is passed through an adjustable low-pass crossover
before being amplified. The crossover control allows you to adjust
the upper limit of the subwoofer's frequency response from 40 to
120 hz. The subwoofer's response will beg in rolling off above the
frequency you set this control to.
You should set the crossover frequency to obtain a smooth and
seamless transition from the subwoofer to the main speakers in
your system.
Ifyour main speakers are smaller units with limited low
frequency output.
~
/I)
U
may wish to choose a higher frequency (such
same channel.
Keep in mind that freq uency response and output level carl be
drastically influenced by placement depending on the acoustic
properties of the listening room . Typically the VA-810/1012XII will
sound louder when placed next to a wall or in a corner.
Caution!
The VA seriessub woofers have amplifiers built into the cabinet. 0 0
not
place the cabinet next to sources of heat such as furnace
registers, radiators, etc. The
power
cord should be routed in 'Such
a way that it will not be walked on, pinched, or compressed in any
way.
Regardless of where you install your VA-81 0/1012XII subwoofer, it
must remain in an upright position (passive radiator facing down-
ward) . Using, shipping, or otherwise storing the VA-810/1012XII
subwoofer in any other position for an extended period of time may
result in damage to the unit not covered by warranty.
The
VA-810/1012XII Subwoofer is magnetically shielded to reduce
magnetic emission from its cabinet to increase the number of
possible locations available for placement. However, this shielding
may not be adequate for all installations.Certain types of televisions
are particularly sensitive to stray magnetic fields . If your television
produces distorted colors after installation of your VA-810/1012XII
subwoofer, simply increase the distance between your television
and the VA-810/1012XII until normal color and operation is re-
turned.
Care
of
oot
er
Do not use any harsh detergents or chemicals to clean the cabinet.
Abrasives, detergents, or clean ing solutions may damage the finish
on the cabinet. We recommend using a damp cloth to clean the
cabinet.
During normal conditions, the VA-810/1012X II subwoofer may be
left on continuously without any problems.The unit is equipped with
a signal sensing turn on/off that will automatically turn on the unit
when a signal is prese nt at the inputs and turn off the unit after