Audioaccess AVR21EN, Руководство по установке

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IMPORTANT NOTE: Listeners are often confused about the operation of the surround channels.
While some assume that sound should always be coming from each speaker, most of the time
there will be little or no sound in the surround channels. This is because they are only used when
a movie director or sound mixer specifically places sound there to create ambience, a special
effect or to continue action from the front of the room to the rear. When the output levels are
properly set, it is normal for surround speakers to operate only occasionally. Artificially increasing
the volume to the rear speakers may destroy the illusion of an enveloping sound field that
duplicates the way you hear sound in a movie theater or concert hall.
Before beginning the output level adjustment process, make certain that all speaker connections
have been properly made. The system volume should be set to the level that you will use during a
typical listening session. While the AVR21EN allows you to set output levels manually, we
recommend that the EzSet system be used when the AVR is first installed to establish the initial
level settings.
SPEAKER SETUP
This menu tells the AVR21EN which type of speakers are in use. This is important as it adjusts
the settings that decide whether your system will use the “5-channel” or “6-channel/7-channel”
modes, as well as determining which speakers receive low-frequency (bass) information.
For each of these settings, use the
LARGE
setting if the speakers for a particular position are
traditional full-range loudspeakers. Use the
SMALL
setting for smaller, frequency-limited satellite
speakers that do not reproduce sounds below 200Hz. Note that when “small” speakers are used,
a subwoofer is required to reproduce low-frequency sounds. Remember that the “large” and
“small” descriptions do not refer to the actual physical size of the speakers, but to their ability to
reproduce low-frequency sounds. If you are in doubt as to which category describes your
speakers, consult the specifications in the speakers’ owner’s manual.
This menu screen also allows you to enter the settings for the AVR21EN’s Quadruple Crossover
feature, which allows a different crossover point to be used for the front left/right, center, surround
and surround back speakers. In systems where full-range or tower speakers are used for the front
soundstage or where different brands or models are in use at the various speaker positions, this
feature allows you to customize the bass management and redirection circuits with a precision
not previously possible.
It is easiest to enter the proper settings for the speaker setup through the
SPEAKERS menu
( Figure 26 ). If that menu is not already on-screen from prior adjustments, bring up the
MAIN
MENU
, and then press the ▼ / ▲ Navigation Button [oval 16] until the cursor is on the
MAIN
ROOM SETUP
line. Press the Set Button [oval 18] . To bring up the
SPEAKERS
menu, press the
▼ / ▲ Navigation Button [oval 16] to move the cursor next to SPEAKERS . In the ARE YOU SURE
YOU WANT TO…? screen, press the ▼ / ▲ Navigation Button [oval 16] to move the cursor next
to
YES
. Press the Set Button [oval 18] to bring up the
SPEAKERS
menu. ( Figure 26 )
Figure 26 Speakers Menu