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ENGLISH
15
SPEAKER SETUP
After connecting all ancillary sources and other combinations, the Speaker
Setup menu will guide you on how to manage and setup your speakers in
order to achieve optimum sound acoustics in your listening environment.
The following are the Speaker Setup Menu sections.
SPEAKER CONFIGURATION
Every surround-sound system requires “bass-management” to direct low-
frequency content from any or all channels to the speakers best able to
reproduce it. For this function to operate correctly, it is important that you
correctly identify your speakers’ capabilities. We use the terms “Small” and
“Large” (and “Off”) but note that physical size may be irrelevant.
•
A “Small” speaker is any model, regardless of physical size, that lacks
significant deep-bass response, that is, below about 200 Hz.
•
A “Large” speaker is any full-range model; that is, one with deep-bass
response
•
An “Off” speaker is one that is not present in your system. For example,
you might not have any surround-back speakers installed; in that case,
you would set the “Back” setup item to “Off”. For “Height” speakers,
selecting “Off” option for “Height 1” will automatically cut off both
Height 1 and Height 2 Audio output.
The Speaker Configuration is “global”; that is, it remains in force with all
input and listening modes. However, speaker settings are part of the T 778’s
Preset system. Consequently, multiple speaker settings can be stored for
easy recall as different types of recordings or listening modes require.
Speaker Configuration can be managed and adjusted by pressing
a combination of [
S ] and then [ D/F ] keys. Set “Front”, “Center” and
“Surround” to “Large”, “Small”(40Hz to 200Hz) or “Off” as your subsystem’s
speakers require.
The “Back” speakers can either be “Stereo” or “Mono” speakers. Set
“Subwoofer” to “On” or “Off”, selecting “On” only if you have a subwoofer
connected to the T 778’s SUBW1 or SUBW2 output jack. If “Subwoofer” is set
to “Off”, “Front” speakers will automatically be set to “Large”.
HEIGHT 1/HEIGHT 2
“Height 1” and “Height 2” AUDIO PRE-OUT can be connected to the audio
input of an external power amplifier hooked up with up to 4 Height
speakers. Height1/Height 2 settings must be set to “On” at the “Speaker
Configuration” menu to power up the additional Height speakers.
ENHANCED BASS
“Enhanced Bass” option becomes available when “Front” is set to “Large”.
The Enhanced Bass option allows full range operation of the speakers
with the additional bass contribution of the subwoofer. This feature is
particularly useful when one wants to experience maximum bass output.
Please note that due to acoustic cancellation effects, the bass response
may be uneven when using this setting
You can set Subwoofer to “On” even with “Large” front speakers, in which
case bass content from any channels set to “Small” will be routed to both
the subwoofer and to the front speakers; LFE-channel signal will pass only
to the sub. In most subwoofer-equipped systems, setting front speakers to
“Small” is usually the better option.
All the speakers’ low frequency content can be directly adjusted within the
range 40Hz to 200Hz.
NOTE
The configurations set forth at “Speaker Setup” are carried over
whenever it is enabled during A/V Preset setting. Please see also the
section “A/V Presets” for reference.
SPEAKER LEVELS
Adjusting the relative balance of your system’s loudspeakers ensures that
surround-sound recordings, whether music or film, will present the balance
of effects, music and dialog that the artists intended. Additionally, if your
system incorporates a subwoofer it establishes a correct relationship
between the volume of the subwoofer and the other speakers, and thus of
low-frequencies (bass) to other sonic elements.
USING AN SPL METER
It is quite practical to perform the T 778 level setup routines “by ear,” and
careful work will produce acceptably accurate results. However, the use
of an inexpensive sound-pressure level (SPL) meter, such as Radio Shack
part number 33-2050, makes this task easier, more accurate and more
repeatable. Ownership of such a meter could prove a valuable audio tool.
The SPL meter should be placed at the primary listening position, at
approximately the height of the seated listener’s head. A tripod is helpful
but with a little duct tape almost anything — a pole lamp, music-stand,
or ladder-backed chair, for example — can do as well. Just be sure that no
large acoustically reflective surfaces obstruct or are near the microphone
element.
OPERATION
CONFIGURING T 778 - SETUP MENU VIA ON-SCREEEN DISPLAY