Sunfire IV - Manual (Page 42)

User's Manual
42
CHAPTER 5
Unlike higher fre quen cies, it is
diffi cult to discern exactly from which
direction lower bass is coming from.
The TGIV has a bass man age ment
system which takes advantage of this
effect. It allows you to choose wheth er
your speakers will play the full fre-
quen cy range, or if the bass will be
re di rect ed to the subwoofer.
The advantages of redirecting the
bass to a subwoofer are :
• The overall bass of the system
is im proved as subwoofers,
such as Sunfi re's powered
True Subwoofers are specially
de signed for this frequency
range.
• The subwoofer can si mul ta -
neous ly play the bass from all
of the speak ers, in addition to
it’s own low frequency effects
channel (LFE).
• There is no loss in percep-
tion of the po si tion of movie or
music sound effects, as the ear
cannot easily locate the posi-
tion of bass sound sources.
• Smaller speakers can be used
for front, center and sur-
rounds, as they do not have to
re pro duce the low fre quen cy
range. This leads to a saving
in speaker ex pense and room
space. Note that a sub woof er
is required if the front speakers
are set to SMALL.
• Your amplifi ers do not waste
power re pro ducing the low
frequency range.
See the previous page for informa-
tion regarding the adjustment of the
bass management crossover point.
Bass Management
The SPEAKER SIZE menu is used
to set the bass management correctly
for your speaker system. See page
38.
NOTE: Dolby Digital and DTS
modes are designed especially for
complete systems with front, cen-
ter, and surround speakers and
subwoofers. You need all of the
speak ers to get the best per for mance
from your Home Theater. If you do not
have a subwoofer connected, then
you should not use the bass manage-
ment system (so set all the speakers
to Large). Without a subwoofer, you
will be missing the 5.1 LFE (low fre-
quency effects) information.
Considering the advantages of
the bass management system, you
might try setting all of your speakers
to Small, even if they are capable of
good low-frequency performance.
Using the TGIV
Video Conversion
The TGIV has advanced digital
video DSP circuitry and coding which
allows the following:
• Up conversion from composite
video inputs to S-video and
component video outputs.
• Up conversion from S-video
inputs to component video
outputs.
• Down conversion from S-video
inputs to the MON2 composite
video output jack.
The video conversion makes the
TGIV able to switch all of your video
sources, making it the central con-
troller for all of your audio and video
entertainment.
For example, suppose you have
your TV connected to the component
video outputs of the TGIV. Any of your
other video sources can be connected
to the TGIV, even those which do not
have component video. The TGIV will
convert any composite and S-video
sources to component video.
Notes:
• Do not connect both compos-
ite and S-video inputs on the
same TGIV input. Always con-
nect the highest quality video
source type.
• The quality of the converted
output is limited by the quality
of the original source.
• The Tuner, Tape and Phono in-
puts do not have video inputs.
When these are selected, the
video stays on the last selected
video source.