Yamaha YST-SW200 Owner's Manual - Page 4
FEATURES, PLACEMENT, This subwoofer system employs YAMAHA Active Servo
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FEATURES • 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. • 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. • 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. PLACEMENT A B C 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. A .) If using two systems, it is recommended to place them on the outside of each main speaker. (See fig. B .) The placement shown in fig. C 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. A or B. 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 superbass 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. 4