YST-SW300 Active Servo Processing Subwoofer System Enceinte pour très basses fréquences de traitement à asservissement actif Thank you for selecting this YAMAHA Subwoofer System. Nous vous remercions d’avoir porté votre choix sur cette enceinte pour très basses fréquences YAMAHA.
SAFETY INSTRUCTIONS 7 Wall or Ceiling Mounting – The unit should be mounted to a wall or ceiling only as recommended by the manufacturer. 8 Ventilation – The unit should be situated so that its location or position does not interfere with its proper ventilation.
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.
CONTENTS Caution ...........................................................................4 Features .........................................................................5 Placement ......................................................................5 Connections ...................................................................6 Controls and their functions ..........................................11 Adjusting volume ..........................................................
• • This subwoofer system employs YAMAHA Active Servo Technology which YAMAHA developed for reproducing higher quality super-bass sound. (Refer to page 15 for details on Active Servo Technology.) This unit does not only enhance bass frequency response of sound output in your audio system, but, by reproducing the bass frequencies, the subwoofer permits your existing amplifier and speakers to operate under less strenuous conditions, improving overall system performance.
CONNECTIONS • Before attempting to make any connections to or from this unit, be sure to first switch OFF the power to this unit and to any other components to which connections are being made. • When making connections between this unit and other components, be sure all connections are made correctly and consistently, that is to say 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.
English If your amplifier has two sets of speaker terminals Right speaker Left speaker This unit OUTPUT TO SPEAKERS AUTO PHASE INPUT2 H.P.F.OUTPUT OUTPUT TO SPEAKERS POWER ON OFF NOM REV 80Hz 50Hz I00Hz FROM AMPLIFIER INPUT1 FROM AMPLIFIER INPUT1 To AC outlet Amplifier A B (Both “A” and “B” outputs must be ON.) Connecting to this unit’s OUTPUT/INPUT terminals For connections, cut the speaker wires as short as possible.
CONNECTING TO LINE OUTPUT (PIN JACK) TERMINALS OF THE AMPLIFIER • Leave the main speakers connected to the amplifier. 1 CONNECTING TO PRE OUT OR SUBWOOFER OUT TERMINAL(S) • Amplifier line output terminals are generally labeled PRE OUT or SUBWOOFER OUT. * For PRE OUT terminal connection, the amplifier must possess at least two sets of PRE OUT terminals. With some amplifiers with only one set of PRE OUT terminals, connection can result in no sound from the main left and right speakers.
The use of the H.P.F. OUTPUT terminals for connections with the amplifier will improve sound quality of your speaker system. The H.P.F. (High-Pass Filter) OUTPUT terminals of this unit cut off frequencies below the selected frequency point from the input signals, and output high frequencies only. By connecting this terminal with the MAIN IN terminals of the amplifier, the main speakers reproduce high frequencies only.
To connect two units Right speaker Left speaker AUTO POWER ON PHASE OFF NOM REV INPUT2 H.P.F.OUTPUT AUTO POWER 80Hz 50Hz I00Hz ON PHASE OFF NOM REV INPUT2 H.P.F.OUTPUT 80Hz 50Hz I00Hz Pin plug cords This unit OUTPUT TO SPEAKERS This unit AUTO PHASE INPUT2 H.P.F.OUTPUT POWER ON OFF NOM REV OUTPUT TO SPEAKERS 80Hz 50Hz I00Hz FROM AMPLIFIER INPUT1 AUTO PHASE INPUT2 H.P.F.
English CONTROLS AND THEIR FUNCTIONS Side panel Rear panel 1 POWER 6 2 OUTPUT TO SPEAKERS VOLUME AUTO POWER PHASE INPUT2 H.P.F.OUTPUT 3 0 I0 HIGH CUT 4 ON 40Hz I40Hz TONE 80Hz 50Hz I00Hz REV FROM AMPLIFIER INPUT1 5 MUSIC OFF NOM 7 8 9 0 A B MOVIE 1 POWER indicator 5 TONE control Lights in green when the POWER switch is turned ON, and goes off when turned OFF.
8 AUTO POWER ON/OFF switch By setting this switch to the ON position, this unit’s automatic power ON/OFF function operates as described below. If you do not need this function, set to the OFF position. * Make sure to change the setting of this switch only when the power of this unit is off. Automatic power ON/OFF function When you play a source, the power to this unit turns on automatically by sensing audio signals input to this unit.
English ADJUSTING VOLUME Side panel Rear panel OUTPUT TO SPEAKERS AUTO POWER PHASE INPUT2 H.P.F.OUTPUT POWER VOLUME ON 1, 4 5 40Hz I40Hz TONE 1 2 3 4 5 6 REV 80Hz 50Hz I00Hz FROM AMPLIFIER INPUT1 0 I0 HIGH CUT MUSIC OFF NOM 6 MOVIE Set the VOLUME control to minimum. Turn on the power supply to all the components. Play any source and adjust the amplifier’s volume control to the desired listening level.
FREQUENCY CHARACTERISTICS Adjustment of the VOLUME control, the HIGH CUT control and the PHASE switch should be changed according to the main speakers, listening condition, source, etc. Following figures show the optimum adjustment of each control and the frequency characteristics when this unit is combined with a typical speaker system.
The theory of Active Servo Technology is based upon two major factors, the Helmholtz resonator and negativeimpedance 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 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 Power is not supplied even though the POWER switch is ON. The power plug is not securely connected. Connect it securely. No sound.
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.
