2 CONTROLS AND THEIR FUNCTIONS.......................... 2 CONNECTIONS................................................................. 3 Connecting to line output (pin jack) terminals of the amplifier .................................................................... 3 Plug in the subwoofer to the AC outlet ............................... 3 ADJUSTING THE SUBWOOFER BEFORE USE................ 3 Frequency characteristic............................................ 3 ADVANCED YAMAHA ACTIVE SERVO TECHNOLOGY II.............................................................. 4 TROUBLESHOOTING ...................................................... 4 SPECIFICATIONS ............................................................. 5 • This subwoofer employs Advanced Yamaha Active Servo Technology II, which Yamaha has developed for the production of higher quality, super-bass sound. (Refer to page 4 for details on Advanced Yamaha Active Servo Technology II.) This super-bass sound adds a more realistic, theater-in-the-home effect to your audio system. • This subwoofer can be easily added to your existing audio system by connecting to either the speaker terminals or the line output (pin jack) terminals of the amplifier. • This subwoofer system is equipped with a linear port unique to Yamaha that provides smooth bass response during playback, minimizing extraneous noise not included in the original input signal. SUPPLIED ACCESSORIES After unpacking, check that the following parts are contained. Non-skid pads ATTACHING THE NON- SKID PADS To enjoy the high sound quality, stabilize the subwoofer using the non-skid pads. Attach the provided non-skid pads in the four corners of the underside of the subwoofer to prevent the subwoofer from moving as a result of vibration, etc. English 1 En PLACEMENT CONTROLS AND THEIR FUNCTIONS PLACEMENT CONTROLS AND THEIR FUNCTIONS A B ( : subwoofer, : front speaker) The subwoofer will have a good effect on your audio system. Using the subwoofer, it is recommended to place it on the outside of either the right or the left front speaker. (See fig. A B .) The placement shown in fig. is also possible, however, if the subwoofer system is placed directly facing the wall, the bass effect may suffer due to cancellation of direct and reflected sounds. To prevent this from happening, place the subwoofer system at an angle, as in fig. A . 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 developed between two parallel walls and cancel the bass sounds. In such a case, place the subwoofer at an oblique angle to the wall. It also may be necessary to break up the parallel surfaces by placing bookshelves, etc. along the walls. Front Rear Power indicator Lights up Green when the POWER switch is turned ON; turns off when the POWER switch is turned OFF. INPUT (FROM AMPLIFIER) terminal Used to connect the subwoofer with the subwoofer terminal of the amplifier. (Refer to “CONNECTIONS” for details.) VOLUME control Adjusts the volume level. Turn the control clockwise to increase the volume, and counterclockwise to decrease the volume. POWER switch Press this switch to the ON position to turn on the power to the subwoofer. Press this switch again to set it to the OFF position to turn off the power of the subwoofer. VOLTAGE SELECTOR switch (Asia and General models only) If the preset setting of the switch is incorrect, set the switch to the proper voltage (110-120/220-240V) of your area. Consult your dealer if you are unsure of the correct setting. WARNING Be sure to unplug the subwoofer before setting the VOLTAGE SELECTOR switch correctly. 2 En CONNECTIONS ADJUSTING THE SUBWOOFER BEFORE USE CONNECTIONS ADJUSTING THE SUBWOOFER BEFORE USE Caution: Unplug the subwoofer and other audio/video components before making connections. Connecting to line output (pin jack) terminals of the amplifier To connect to an amplifier (or AV receiver), connect the SUBWOOFER terminal on the rear of the amplifier (or AV receiver) to the INPUT terminal of the subwoofer. Amplifier (The rear panel of various amplifiers may differ in appearance.) Plug in the subwoofer to the AC outlet After all connections are completed, plug the subwoofer and other audio/video components into AC outlets. Before using the subwoofer, adjust the subwoofer to obtain the optimum volume balance between the subwoofer and the front speakers by following the procedure described below. 1 Set the VOLUME control to minimum (0). 2 Turn on the power of all the other components. 3 Make sure that the POWER switch is set to the ON position. * The Power indicator lights up in green. 4 Play a source containing low-frequency components and 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 v...