CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. IMPORTANT Please record the serial number of this system in the space below.
This product, when installed as indicated in the instructions contained in this manual, meets FCC requirements. Modifications not expressly approved by Yamaha may void your authority, granted by the FCC, to use the product. IMPORTANT : When connecting this product to accessories and/or another product use only high quality shielded cables.
Thank you for selecting this YAMAHA subwoofer system. CAUTION: Read this before operating your unit. To assure the finest performance, please read this manual carefully. Keep it in a safe place for future reference. Install this unit in a cool, dry, clean place – away from windows, heat sources, sources of excessive vibration, dust, moisture and cold.
● This subwoofer system employs Advanced YAMAHA Active Servo Technology which YAMAHA has developed for reproducing higher quality super-bass sound. (Refer to page 11 for details on Advanced YAMAHA Active Servo Technology.) This super-bass sound adds a more realistic, theater-in-the-home effect to your stereo system.
● The subwoofer can be connected to either the speaker output terminals or the line output (pin jack) terminals of the amplifier. Choose one of the ways shown in this section that is more suitable for your audio system. Also, refer to the owner’s manual of your component to be connected to the subwoofer.
Notes ● Some amplifiers have line output terminals labeled PRE OUT. When you connect the subwoofer to the PRE OUT terminals of the amplifier, make sure that the amplifier has at least two sets of PRE OUT terminals. If the amplifier has only one set of PRE OUT terminals, do not connect the subwoofer to the PRE OUT terminals.
Using one subwoofer If your amplifier has only one set of main speaker output terminals Connect the speaker output terminals of the amplifier to the INPUT1 terminals of the subwoofer, and connect the OUTPUT terminals of the subwoofer to the main speakers.
Using two subwoofers Connect the speaker output terminals of the amplifier to the INPUT1 terminals of the subwoofer, and connect the OUTPUT terminals of the subwoofer to the main speakers. Right speaker Subwoofer POWER INPUT1 VOLUME FROM AMPLIFIER STANDBY-RED ON-GREEN...
POWER switch Set this switch to the ON position to turn on the power of the subwoofer. When the power of the subwoofer is on, the power indicator below the POWER switch lights up GREEN. Set this switch to the OFF position to turn off the power of the subwoofer.
ADJUSTMENT BEFORE USING THE SUBWOOFER Before using the subwoofer, adjust the subwoofer to obtain the optimum volume and tone balance between the subwoofer and the main speakers by following the procedures described below. Rear panel POWER Set the VOLUME control to minimum (0).
Frequency characteristics Fig. 1 shows the frequency characteristics of the subwoofer with each position (HIGH/LOW) of the HIGH CUT switch. Fig. 2 shows the optimum volume level with the HIGH CUT switch at the HIGH position, and the frequency characteristics when the subwoofer is combined with a typical 3.5”...
ADVANCED YAMAHA ACTIVE SERVO TECHNOLOGY The theory of Yamaha Active Servo Technology has been based upon two major factors, the Helmholtz resonator and negative-impedance drive. Active Servo Processing speakers reproduce the bass frequencies through an “air woofer”, which is a port or opening in the speaker’s cabinet.
Refer to the chart below when this unit does not function properly. If the problem you are experiencing is not listed below or if the instructions given below do not help, disconnect the power cord and contact your authorized YAMAHA dealer or service center.
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YAMAHA ELECTRONIQUE FRANCE S.A. RUE AMBROISE CROIZAT BP70 CROISSY-BEAUBOURG 77312 MARNE-LA-VALLEE CEDEX02, FRANCE YAMAHA ELECTRONICS (UK) LTD. YAMAHA HOUSE, 200 RICKMANSWORTH ROAD WATFORD, HERTS WD1 7JS, ENGLAND YAMAHA SCANDINAVIA A.B. J A WETTERGRENS GATA 1, BOX 30053, 400 43 VASTRA FRÖLUNDA, SWEDEN Printed in China YAMAHA MUSIC AUSTRALIA PTY, LTD.