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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Supplied accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Positioning the subwoofer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Basic connection example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Connecting components and the subwoofer to AC power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Using the subwoofer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Pre-adjusting the subwoofer volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Advanced Yamaha Active Servo Technology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Frequency characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Introduction Features Supplied accessories Please confirm that the following item is included in the package. Advanced YST Advanced Yamaha Active Servo Technology is a unique system to let the speaker unit have a per- Non-skid pads fectly linear motion by the speaker and amplifier combination. QD-Bass Technology QD-Bass (Quatre Dispersion Bass) technology is a Yamaha unique technology to radiate the sound efficiently in four horizontal direction. Subwoofer cable (5 m) 1 Positioning the subwoofer Although the placement of the subwoofer is not as critical as that of the other speakers, it is best to place the subwoofer outside either the right or left front speaker as shown in figure A. A (Recommended) : Subwoofer : Front speaker The placement shown in Figure B is also acceptable. However, in some cases, if you listen from the center of the room, the super-bass range from the subwoofer may sound weak. This is due to “standing waves” that can develop between parallel walls that effectively diminish or cancel the bass sound. In this event, face the subwoofer obliquely to the wall. It also may help to break up the parallel surface by placing bookshelves or other large objects along the wall. B (Acceptable) Non-skid pads: Place the included non-skid pads at the four corners of the bottom of the sub- woofer to prevent the subwoofer from sliding due to vibration or minor impact. : Subwoofer : Front speaker Connections English Caution: Plug the power cables for the sub- woofer and other audio/video components into an AC outlet only after you complete all other connections. Basic connection example Connect a subwoofer cable to the output jack of your AV amplifier and to the INPUT jack of the subwoofer. Amplifier (The rear panel of various amplifiers may differ in appearance.) Connecting components and the subwoofer to AC power After you complete a subwoofer connection, plug the amplifier, other audio/video component, and the subwoofer into an AC outlet of appropriate voltage. OFF ON POWER VOLUMEINPUT INPUT To AC outlet Subwoofer 3 Using the subwoofer OFF ON POWER VOLUMEINPUT 3 1 4 2 INPUT VOLUME OFF ON POWER Rear panel 1Power indicator Lights up GREEN when the POWER switch (2) is turned ON; turns off when the POWER switch is turned OFF. 2POWER switch Press this switch to the ON position to turn on the power to the subwoofer. When the power of the subwoofer is on, the power indicator (1) on the rear panel lights up green. Press this switch again to set it to the OFF position to turn off the power of the subwoofer. 3VOLUME control Adjusts the volume level. Turn the control clockwise to increase the volume, and counterclockwise to decrease the volume. 4INPUT terminal Input terminal for line level signals from the amplifier. Pre-adjusting the subwoofer volume Before you use the subwoofer, first adjust the volume balance between the subwoofer and the front speakers by following the procedure below. 1.Set the VOLUME control to minimum (0). 2.Turn on the power to all other components. 3.Press the POWER switch to the ON position. The power indicator on the rear panel lights up green. 4.Play a source that contains low-frequency sounds. Adjust the amplifier’s volume control to the desired listening level. 5.Increase the volume gradually to adjust the volume balance between the subwoofer and the front speakers. To enjoy natural bass sound, keep the subwoofer volume at a level where it is barely distinguishable from other speakers. 6.Adjust the volume of ...