Final Sound 400i User Manual page 16

Where do I place the Final Sound subwoofer?
(For placement suggestions: see the figure in chapter ' Final Sound Model 400i front and rear loudspeakers')
Coloration, due to resonance, is strongest at bass frequencies between 20 and 200 Hertz. It's much
easier to obtain high absorption at higher frequencies. So, the placement of a subwoofer is critical.
Theoretically, the smoothest low-frequency response is obtained when the subwoofer is as close as
possible to the listener's ears. The received sound from the subwoofer is then dominated by the direct
radiation rather than by room resonances. Practically the subwoofer should be placed on the base line
between the front panels. That's also advisable from a phase perspective and if the subwoofer outputs
frequencies higher than 100Hz. You cannot locate frequencies below 100Hertz. If the output is above
100Hz, it's easy to locate the sound coming from the subwoofer. Then, it's common wisdom to keep
the sub near the front panels and not along the wall or in the corner.
If you don't want to put the sub between the front panels and if the output is below 100Hz, the second
best location is nearby the corner of the room, consistent with the acoustic theory that all the room
modes will be excited evenly from this location. But, useful lessons learned from the real world tells us
that the best approach in coping with subwoofers is to use your ears and play around a little bit.
How do I perform a safe subwoofer connection?
IMPORTANT: Before connecting the subwoofer, all sound system equipment should be disconnected
from the mains until you have gone through all steps below. This will avoid the risk of damage to your
system while connections are made or broken.
Warning: High voltage inside. To reduce the risk of fire or electric shock, do not
expose this apparatus to rain or moisture.
The following connection schemes are the MOST COMMON for connecting subwoofers to the Final
panels. The DEDICATED Final subwoofers will bring ADDITIONAL opportunities which are fully
explained in the subwoofer's manual. We recommend to add a Final subwoofer to your panels and to
apply the high pass filtering.
CONNECTING FOR STEREO
(Figure 1) If you use an integrated stereo amplifier or stereo receiver.
Connect the subwoofer's HI-LEVEL IN terminals to the amplifier's loudspeaker
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terminals (together with the electrostatic panels).
You cannot use the subwoofer's special high pass filter facilities for driving the
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electrostatic panels.
FINAL SOUND 400i Loudspeaker Manual vs. 1.4 -US-
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c FS 2007RJ 16