Appendix, Poor bass performance, Turn-on and turn-off thumps – Sunfire 913-047-00 User Manual
Page 13
User's Manual
13
APPENDIX
• Try moving your components
further away from the TV, es pe -
cial ly if you ever notice the
screen has changed color in
the area closest to the compo-
nent.
• If you have very high efÞ ciency
speak ers, these may show up
noise which other speakers
may not.
Poor bass performance
• Make sure that your preamp
does not have the bass level
turned down.
• Many surround preampliÞ ers
have con trols which can direct
all the bass to sub woof ers, or
let your main speakers play the
full range. Make sure that the
preampliÞ er has been correctly
set.
• Check that the speaker wires
have been connected correctly:
Make sure that the positive of
each speaker connects to a
positive output of the ampli-
Þ er, and the neg a tive of each
speaker connects to a neg-
a tive output. If one speaker is
wired incorrectly, than it will be
“out of phase” with the others,
resulting in poor bass perfor-
mance.
• If you have connected the
ampliÞ er using the XLR inputs,
make sure that the XLR cables
are wired correctly. If one has
the hot and cold reversed, then
this will also cause a speaker
to be out of phase.
Turn-on and turn-off
thumps
• Plug the ampliÞ er into an
unswitched AC outlet, and use
the AUTO-ON feature. This will
allow the ampliÞ er to turn on
and off with good manners.