UCA YST-SW45 Active Servo Processing Subwoofer System Caisson de grave avec asservissement actif OWNER’S MANUAL MODE D’EMPLOI
SAFETY INSTRUCTIONS 9 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN Heat – The unit should be situated away from heat sources such as radiators, stoves, or other appliances that produce heat. 10 Power Sources – The unit should be connected to a 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. power supply only of the type described in the operating instructions or as marked on the unit.
English FCC INFORMATION 1. 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. 2. 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. Follow all installation instructions.
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.
Caution ....................................................................... 4 Features ..................................................................... 5 Placement .................................................................. 5 Connections ............................................................... 6 Controls and their functions ....................................... 9 English CONTENTS Adjusting volume ......................................................
CONNECTIONS Never plug in the subwoofer and other audio/video components until all connections are completed. • When making connections between this unit and other components, be sure all connections are made firmly and correctly; L (left) to L, R (right) to R, + to + and – to –. • This unit can be connected to either the speaker terminals or the line output (pin jack) terminals of the amplifier. Choose one of the connections shown below according to your audio system.
English Using two units Disconnect your main speakers from the amplifier if connected, and connect them to the speaker terminals of this unit.
CONNECTING TO LINE OUTPUT (PIN JACK) TERMINALS OF THE AMPLIFIER • Connect the main speakers to the speaker output terminals of the amplifier. • Amplifier line output terminals are generally labeled PRE OUT or SUBWOOFER OUT. • To connect with a YAMAHA DSP amplifier, connect the SUBWOOFER (or LOW PASS etc.) terminal on the rear of the DSP amplifier to either the left (L) or right (R) INPUT 2 terminal.
English CONTROLS AND THEIR FUNCTIONS Front panel STANDBY/ON HIGH CUT 40 Hz 140 Hz VOLUME 0 10 STANDBY/ON HIGH CUT 50 Hz ~ Ÿ 150 Hz ! VOLUME 0 10 ⁄ Rear panel OUTPUT TO SPEAKERS POWER OUTPUT TO SPEAKERS INPUT2 ON INPUT2 AUTO STANDBY AUTO STANDBY LOW HIGH OFF FROM AMPLIFIER INPUT1 OFF LOW HIGH @ POWER ON OFF OFF FROM AMPLIFIER INPUT1 ¤ ~ Power indicator Lights up while this unit is ON.
ADJUSTING VOLUME Adjustment of the HIGH CUT control and the VOLUME control needs to be changed according to the main speakers, listening condition, source, etc. Front panel STANDBY/ON HIGH CUT 50 Hz 3 1 2 3 4 5 VOLUME 150 Hz 5 0 10 1,6 Set the VOLUME control to minimum (0). Turn on the other components. Press the STANDBY/ON button to turn on this unit. Play any source and adjust the amplifier’s volume control to the desired listening level.
English The figures below show the optimum adjustment of each control and the frequency characteristics when this unit is combined with a typical main speaker system. EX.1 When combined with a 3” or 4” (8cm or 10cm) acoustic suspension, 2 way system main speakers dB HIGH CUT Combined frequency response VOLUME 90 80 50 Hz 150 Hz 0 10 70 YST-SW45 * One graduation of this control represents 10 Hz. 60 Main speaker’s response 50 40 20 50 100 200 500Hz EX.
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. This opening is used instead of, and performs the functions of, a woofer in a conventionally designed speaker system.
If the unit fails to operate normally, check the following points to determine whether the fault can be corrected by the simple measures suggested. If it cannot be corrected, or if the fault is not listed in the SYMPTOM column, disconnect the power cord and contact your authorized YAMAHA dealer or service center for help. SYMPTOM CAUSE REMEDY The power cannot be turned on. The power cord is not plugged in, or the Main POWER switch is set to the OFF position.
YAMAHA ELECTRONICS CORPORATION, USA 6660 ORANGETHORPE AVE., BUENA PARK, CALIF. 90620, U.S.A. YAMAHA CANADA MUSIC LTD. 135 MILNER AVE., SCARBOROUGH, ONTARIO M1S 3R1, CANADA YAMAHA ELECTRONIK EUROPA G.m.b.H. SIEMENSSTR. 22-34, 25462 RELLINGEN BEI HAMBURG, F.R. OF GERMANY 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.
