Yamaha YST-SW325 User Manual

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The position of the subwoofer is not so critical since low bass sounds are not highly directional. For a sonorous sound 
field, although you can obtain a good effect with one subwoofer, the use of two subwoofers is recommended.

If using one subwoofer, we recommend that you place it on the outside of either the right or the left front speaker. (See 
fig. 

.) If using two subwoofers, we recommend that you place them on the outside of each front speaker. (See fig.

 

.) The placement shown in fig.

 is also possible, however, if the subwoofer system is placed directly facing the wall, the 

bass effect may die because the sound from it and the sound reflected by the wall may cancel out each other. To prevent 
this from happening, face the subwoofer system at an angle as in fig.

 or 

.

 ( 

 : subwoofer, 

 : front speaker)

Note
There may be a case that you cannot obtain enough super-bass sounds from the subwoofer when listening in the center of 
the room. This is because “standing waves” have been developed between two parallel walls and they cancel the bass 
sounds. 

In such a case, face the subwoofer obliquely to the wall. It also may be necessary to break up the parallel surfaces by 
placing bookshelves etc. along the walls.

Put the provided non-skid pads at the four corners on the bottom of the subwoofer to prevent the subwoofer from moving 
by vibrations etc.