XTZ SA-1 - Page 17

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Cables - RCA
unbalanced
When installing your new subwoofer using unbalanced RCA connections, you should use high quality
shielded coaxial cables. Poor quality cables may pickup interference and result in hum or noise. Keep the
length of cable as short as possible and route all input signal cables away from power cables to reduce the
potential of induced noise.
Cables - XLR
When using balanced XLR connections, be certain to use a high quality cable that maintains proper
connections to each pin, the pins are often marked with numbers. If an XLR cable that is improperly wired is
used, subwoofer performance may be degraded and you may experience increased noise and/or hum. Due
to various design di󰀨erences between di󰀨erent brands & types of equipment (e.g. di󰀨erent ground methods
for power supplies and signal reference) and long cables required in some installations, there is a potential for
any product to pickup noise via the connections and/or connected equipment (via ground loops). If you have
audible hum/buzz after completing your subwoofer connections, you may need to modify your equipment’s
cables, routing, or connection methods (power line connections and/or signal cables).
Placement
While true subwoofers operate at extremely low frequencies which are primarily omni-directional, keep in mind
that frequency response and output level can be dramatically inuenced by where you place the subwoofer
within the room. Placing the subwoofer in the wrong location may degrade sound quality, limit low frequency
response and reduce maximum output level, substantially reducing your overall listening pleasure. Many
rooms often end up with non-optimal placement, depending on the size and location of the furnishings within
your room and if the possibility to reposition them exists. Finding the optimal location usually requires some
experimentation to determine what sounds best in your room, from your listening position. We suggest you
read the general guidelines below and setup the subwoofer in one of the suggested locations.
Proceed to listen to the loudspeakers multiple times, trying a few di󰀨erent locations before settling on the nal
location. To do this, perform basic setup and listen to a familiar music track or movie scene. Then move the
loudspeakers to an alternate location & repeat listening to the same music track or movie scene. If you have a
test CD and SPL meter or preferably one of our measurement systems (Room Analyzer II / II Pro), performing
a basic frequency response test can help you determine which location provides the best frequency response.
General guidelines
In most rooms, the optimum location for your subwoofer is in the closest solid front corner or somewhere
along the front wall in line with your front speaker.
This location typically o󰀨ers optimal energy coupling with the room, front-speakers and the deepest low
frequency extension, with the best high impact bass. Try to avoid location for a subwoofer that is far away
from walls or near the center of your room. When using a pair of subwoofers in stereo, it is preferable to
place each subwoofer by the satellite of the same channel, see gure below to the left. If you want a more
at frequency response and the bass evenly distributed over a larger area of listening positions, then four
subwoofers one in each corner is a terric option.
The gure below to the right shows alternative subwoofer placement options with subwoofer/- placed at
the midpoint of the wall. This can be used for one subwoofer with the subwoofer placed in the front, for two
subwoofers with the subwoofer placed at the front and back and for four subwoofers with the subwoofers
placed in the mid point of each wall.