Yamaha NS-P400 Owner's Manual download pdf (Page 6)

It is recommended to place the subwoofer on the outside of

either the right or the left main 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. To prevent this, face the

subwoofer system obliquely to the wall as shown in fig. .

Note

There may be a case that you cannot obtain enough super-

bass sounds from this unit when listening at the middle of the

room. This is because “standing waves” have developed

between two parallel walls and the bass sounds are being

canceled.

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.

Use the rubber pads

Put the provided rubber pads at the four corners on the bottom

of the subwoofer to prevent the subwoofer moving due to

vibrations etc.

■ Placing the subwoofer

( : subwoofer, : main speaker)

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Yamaha NS-P400 Owner's Manual Page 6