Yamaha SRT-1000 Mode D'emploi page 23

When surround effect is not enough
The unit achieves its surround sound effects by projecting sound beams which reflect off
walls. The sound beams are not reflected toward to the listening position caused by
furniture, etc., in the path of sound beams, or the room shape. In this case, the sound
may become unbalanced.
Figure 1. Ideal condition
Sound beams are reflected correctly and
surround sound effects are balanced.
If the sound beams are not reflected toward to the listening position (figure 2), you can
adjust for this by installing the optional sound reflection board (YRB-100).
NOTE
• YRB-100 may not be available depending on the country or region.
Figure 2. Surround (right) beam is not being
reflected because there is no wall.
Surround (right) is quieter than surround (left), or
surround (right) is in front of its proper location.
YRB-100
Figure 3. With a sound reflection board installed
The sound beam for surround (right) is reflected
correctly, and correct surround sound effect is
achieved.
How to install YRB-100
The unit outputs sound beams according to the "SRT position" settings (p.9) as shown in
the following illustrations.
Install the YRB-100 in the path of the sound beam.
shows the recommended install position.
SRT position: Center
SRT position: Left
• After installing the sound reflection board, refer to the YRB-100 owner's manual to
adjust the height and angle. It is recommended to use the test-tone (by holding down
the CH LEVEL key) when adjusting the board (p.11).
• By installing the board close to your listening position, you can achieve clear surround
sound positioning.
NOTE
This unit does not have the function to automatically adjust sound beam angles. It is not necessary to
adjust the sound beam angles, although the procedure is described in the owner's manual.
FL: Front left
FR: Front right
SL: Surround left
SR: Surround right
SRT position: Right
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