Owner`s manual

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This subwoofer system employs YAMAHA Active Servo

Technology which YAMAHA developed for reproducing

higher quality super-bass sound. (Refer to page 13 for

details on Active Servo Technology.)

This unit does not only enhance bass frequency response

of sound output in your audio system, but, by reproducing

the bass frequencies, the subwoofer permits your existing

amplifier and speakers to operate under less strenuous

conditions, improving overall system performance.

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This unit can be added easily to your existing audio system

by connecting to either the speaker terminals or the line

output (pin jack) terminals of the amplifier.

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For the effective use of this unit, this unit’s super-bass

sound must be matched to the sounds on your main

speakers. Therefore, this unit employs the continuously

variable high frequency cut-off point (HIGH-CUT) control.

Moreover, the PHASE switch allows you to select better

sound quality according to the listening condition.

If using one subwoofer system, it is recommended to place it

on the outside of either the right or the left main speaker. (See

fig. .) If using two systems, it is recommended to place them

on the outside of each 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 will collide. To prevent this, face the

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

One subwoofer system will have a good effect on your audio

system, however, the use of two subwoofer systems is

recommended to obtain more presence.

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 the “standing waves” occur between

two parallel walls and the bass sounds are canceled.

In such a case, face the unit obliquely to the wall. It also may

be necessary to break up the parallel surfaces by placing

bookshelves etc. along the walls.

FEATURES

PLACEMENT