UC SW-201 Subwoofer System Enceinte a Caisson de Grave OWNER’S MANUAL MODE D’EMPLOI
• Explanation of Graphical Symbols CAUTION The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert you to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. 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.
English FCC INFORMATION (for US customers only) 1. 2. 3. IMPORTANT NOTICE : DO NOT MODIFY THIS UNIT! 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. Cable/s supplied with this product MUST be used.
Thank you for selecting this YAMAHA subwoofer system. CAUTION: Read this before operating your unit. 1. To assure the finest performance, please read this manual carefully. Keep it in a safe place for future reference. 2. Install this unit in a cool, dry, clean place – away from windows, heat sources, sources of excessive vibration, dust, moisture and cold. Avoid sources of humming (transformers, motors). To prevent fire or electrical shock, do not expose the unit to rain or water. 3.
● 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. ● 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.
CONNECTIONS Caution: Plug in the subwoofer and other components after all connections are completed. ● All connections must be correct, that is to say L (left) to L, R (right) to R, “+” to “+” and “–” to “–”. Also refer to the owner’s manual for each of your components. ● 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.
English m Using two subwoofers Left speaker Right speaker INPUT2 INPUT2 /MONO POWER POWER ON ON OFF OFF VOLUME 0 AUTO STANDBY HIGH LOW OFF INPUT2 Pin plug cords Subwoofer Subwoofer STANDBY-RED ON-GREEN /MONO I0 VOLUME STANDBY-RED ON-GREEN 0 AUTO STANDBY HIGH LOW HIGH LOW OFF HIGH CUT /MONO INPUT2 INPUT1 INPUT1 FROM AMPLIFIER FROM AMPLIFIER OUTPUT OUTPUT TO SPEAKERS TO SPEAKERS I0 HIGH LOW HIGH CUT /MONO SPLIT SUBWOOFER Amplifier To AC outlet To AC outlet Notes ●
Connecting to speaker output terminals of the amplifier m 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.
English m 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.
CONTROLS AND THEIR FUNCTIONS Rear panel POWER 1 POWER ON ON OFF OFF VOLUME 7 2 3 VOLUME STANDBY-RED ON-GREEN 0 AUTO STANDBY HIGH LOW OFF INPUT2 I0 STANDBY-RED ON-GREEN 0 AUTO STANDBY HIGH LOW OFF HIGH LOW I0 HIGH LOW HIGH CUT 8 HIGH CUT 4 /MONO INPUT2 /MONO INPUT1 FROM AMPLIFIER OUTPUT 5 TO SPEAKERS 6 1 2 3 4 5 6 E-8 POWER switch Set this switch to the ON position to turn on the power of the subwoofer.
English 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.
m Frequency characteristics 100 Fig. 1 shows the frequency characteristics of the subwoofer with each position (HIGH/LOW) of the HIGH CUT switch. HIGH CUT HIGH 90 80 70 HIGH CUT LOW 60 50 40 20 50 100 200 500Hz Fig. 1 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” or 4” (8 cm or 10 cm) acoustic suspension, 2 way system main speakers.
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. This opening is used instead of, and performs the functions of, a woofer in a conventionally designed speaker system.
TROUBLESHOOTING 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. Problem Cause What to Do Power is not supplied even though the POWER switch is set to the ON position. The power plug is not securely connected. Connect it securely. No sound. The VOLUME control is set to 0.
YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA ELECTRONICS CORPORATION, USA 6660 ORANGETHORPE AVE., BUENA PARK, CALIF. 90620, U.S.A. CANADA MUSIC LTD. 135 MILNER AVE., SCARBOROUGH, ONTARIO M1S 3R1, CANADA ELECTRONIK EUROPA G.m.b.H. SIEMENSSTR, 22-34, 25462 RELLINGEN, BEI HAMBURG, F.R. OF GERMANY ELECTRONIQUE FRANCE S.A. RUE AMBROISE CROIZAT BP70 CROISSY-BEAUBOURG 77312 MARNE-LA-VALLEE CEDEX02, FRANCE ELECTRONICS (UK) LTD. YAMAHA HOUSE, 200 RICKMANSWORTH ROAD WATFORD, HERTS WD1 7JS, ENGLAND SCANDINAVIA A.
