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YST-SW225UB.book Page 1 Tuesday, July 27, 2004 10:25 AM
UB
YST-SW225
Subwoofer System
OWNER’S MANUAL
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YST-SW225UB.book Page i Tuesday, July 27, 2004 10:25 AM IMPORTANT SAFETY INSTRUCTIONS 1 Read these instructions. 2 Keep these instructions. 3 Heed all warnings. 4 Follow all instructions. 5 Do not use this apparatus near water. 6 Clean only with dry cloth. 7 Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. Explanation of Graphical Symbols 8 Do not install near any heat sources such as radiators, heat registers, stoves, or other apparat
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YST-SW225UB.book Page ii Tuesday, July 27, 2004 10:25 AM We Want You Listening For A FCC INFORMATION (for US customers) Lifetime 1 IMPORTANT NOTICE : DO NOT MODIFY THIS UNIT! YAMAHA and the Electronic Industries Association’s This product, when installed as indicated in the Consumer Electronics Group want you to get the most out instructions contained in this manual, meets FCC of your equipment by playing it at a safe level. One that requirements. Modifications not expressly lets th
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0102YST-SW225_UB_safety_en.fm Page iii Monday, August 21, 2006 4:01 PM Thank you for selecting this YAMAHA subwoofer system. CAUTION: Read this before operating your unit Please read the following operating precautions Do not place this unit where foreign objects such as before use. YAMAHA will not be held responsible water drips might fall. It might cause a fire, damage to for any damage and/or injury caused by not this unit, and/or personal injury. following the cautions below. Never
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0103YST-SW225_UB_en.toc Page 1 Monday, August 21, 2006 4:06 PM • VOLTAGE SELECTOR (Asia and General models only) CONTENTS The voltage selector switch on the rear panel of this FEATURES ....................................................................2 unit must be set for your local main voltage BEFORE plugging this unit into the AC main supply. Voltages SUPPLIED ACCESSORIES ...........................................2 are 110-120/220-240 V AC, 50/60 Hz. This unit is not disconnected f
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YST-SW225UB.book Page 2 Tuesday, July 27, 2004 10:25 AM FEATURES SUPPLIED ACCESSORIES This subwoofer system employs Advanced Yamaha After unpacking, check that the following parts are Active Servo Technology II which Yamaha has contained. developed for reproducing higher quality super-bass sound. (Refer to page 14 for details on Advanced Yamaha Active Servo Technology II.) This super-bass sound adds a more realistic, theater-in-the-home effect to your stereo system. This subwoofer ca
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YST-SW225UB.book Page 3 Tuesday, July 27, 2004 10:25 AM PLACEMENT One subwoofer will have a good effect on your audio system, however, the use of two subwoofers is A recommended to obtain more effect. If using one subwoofer, it is recommended to place it on the outside of either the right or the left front speaker. (See A fig. .) If using two subwoofers, it is recommended to place them on the outside of each front speaker. (See B C fig. .) The placement shown in fig. is also possible,
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YST-SW225UB.book Page 4 Tuesday, July 27, 2004 10:25 AM CONNECTIONS Choose one of the following two connecting methods that is more suitable for your audio system. ■Choose 1 (pages 4-5) if your amplifier has line output (pin jack) terminal(s) ■Choose 2 (pages 6-7) if your amplifier has no line output (pin jack) terminal Caution: Unplug the subwoofer and other audio/video components before making connections. Notes All connections must be correct, that is to say L (left) to L, R (right) to
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YST-SW225UB.book Page 5 Tuesday, July 27, 2004 10:25 AM CONNECTIONS ■Using one subwoofer Subwoofer Mono pin cable (not included) OUTPUT INPUT TO SPEAKERS 2 AUTO STANDBY HIGH LOW OFF OUTPUT INPUT PHASE TO SPEAKERS 2 L /MONO L /MONO NORM REV R INPUT 1 FROM AMPLIFIER VOLTAGE SELECTOR 220V-240V POWER 110V-120V ON OFF R INPUT 1 FROM AMPLIFIER Audio pin To AC outlet cable (not included) Amplifier ■Using two subwoofers Mono pin cable(not included) OUTPUT INPUT OUTPUT INPUT TO SPEAKERS TO SPEAKERS 2
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YST-SW225UB.book Page 6 Tuesday, July 27, 2004 10:25 AM CONNECTIONS 2 Connecting to speaker output terminals of the amplifier Select this method if your amplifier has no line output (pin jack) terminal. If your amplifier has two sets of front speaker output terminals and both terminals can output sound signals simultaneously. Connect one set of front speaker output terminals of the amplifier to the INPUT1 terminals of the subwoofer, and connect the other set of front speaker output termi
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YST-SW225UB.book Page 7 Tuesday, July 27, 2004 10:25 AM CONNECTIONS If your amplifier has only one set of front 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 front speakers. ■Using one subwoofer (with speaker cables) Right front speaker Left front speaker OUTPUT INPUT TO SPEAKERS 2 L /MONO Subwoofer R INPUT 1 AUTO STANDBY HIGH FROM AMPLIFIER LOW OFF TO OUTPUT S
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YST-SW225UB.book Page 8 Tuesday, July 27, 2004 10:25 AM CONNECTIONS Connecting to the INPUT1/OUTPUT Plug in the subwoofer to the AC outlet terminals of the subwoofer After all connections are completed, plug in the subwoofer and other audio/video components to the AC outlet. For connection, keep the speaker cables as short as possible. Do not bundle or roll up the excess part of the cables. If the connections are faulty, no sound will be heard from the subwoofer or the speakers, or both o
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YST-SW225UB.book Page 9 Tuesday, July 27, 2004 10:25 AM CONTROLS AND THEIR FUNCTIONS Advanced 1 23 4 5 6 Control panel Front panel AUTO STANDBY 9 HIGH OUTPUT INPUT PHASE LOW 8 TO SPEAKERS 2 OFF L /MONO NORM REV R INPUT 1 ST AU ANDBY TO HIGH FROM AMPLIFIER LOW OFF OUTPUT INPUT PHASE TO SPEAKERS 2 L /MONO NORM REV 0 q w R INPUT 1 FROM AMPLIFIER VOLTAGE VOLTAGE SELECTOR 220V-240V POWER ON 110V-120V SELECTOR POWER OFF 220V-240V ON 110V-120V OFF e 7 Rear panel (General model) 1 Power indicator 3
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YST-SW225UB.book Page 10 Tuesday, July 27, 2004 10:25 AM CONTROLS AND THEIR FUNCTIONS 5 HIGH CUT control Adjusts the high frequency cut off point. Frequencies higher than the frequency selected by this control are all cut off (and no output). * One graduation of this control represents 10 Hz. 6 VOLUME control Adjusts the volume level. Turn the control clockwise to increase the volume, and counterclockwise to decrease the volume. 7 POWER switch Normally, set this switch to the ON position
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YST-SW225UB.book Page 11 Tuesday, July 27, 2004 10:25 AM AUTOMATIC POWER-SWITCHING FUNCTION This function automatically switches the unit between standby and power-on modes. The subwoofer automatically places itself in standby mode if it does not receive an input signal for 7 or 8 minutes. (The power indicator lights red.) When the subwoofer detects a bass signal input of below 200 Hz, it automatically places itself in power-on mode. (The power indicator lights green.) Changing the AUTO STA
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YST-SW225UB.book Page 12 Tuesday, July 27, 2004 10:25 AM ADJUSTING THE SUBWOOFER BEFORE USE Before using the subwoofer, adjust the subwoofer to obtain the optimum volume and tone balance between the subwoofer and the front speakers by following the procedures described below. 7 3 POWER NORM REV ON OFF 3 8 5 1 1 Set the VOLUME control to minimum (0). 8 Select “MOVIE” or “MUSIC” according to the played source. 2 Turn on the power of all the other components. MOVIE: 3 Make sure that the POWER
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YST-SW225UB.book Page 13 Tuesday, July 27, 2004 10:25 AM ADJUSTING THE SUBWOOFER BEFORE USE Frequency characteristics This subwoofer’s frequency characteristics dB HIGH CUT 90 Hz 90 HIGH CUT 140 Hz 80 70 60 HIGH CUT 40 Hz 50 40 20 50 100 200 500Hz The figures below show the optimum adjustment of each control and the frequency characteristics when this subwoofer is combined with a typical front speaker system. ■EX.1 When combined with a 4” or 5” (10 cm or 13 cm) acoustic suspension, 2 way s
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YST-SW225UB.book Page 14 Tuesday, July 27, 2004 10:25 AM ADVANCED YAMAHA ACTIVE SERVO TECHNOLOGY II In 1988, Yamaha brought to the marketplace speaker Yamaha’s newly developed Advanced YST II adds many systems utilizing YST (Yamaha Active Servo Technology) refinements to Yamaha Active Servo Technology, to give powerful, high quality bass reproduction. This allowing better control of the forces driving the amplifier technique uses a direct connection between the amplifier and speaker. Fro
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YST-SW225UB.book Page 15 Tuesday, July 27, 2004 10:25 AM 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 The power plug is not securely Connect it securely. STANDBY/ON button is set to the ON connected. p
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0103YST-SW225_UB_en.CV4 Page 16 Friday, August 25, 2006 6:11 PM SPECIFICATIONS Type.......... Advanced Yamaha Active Servo Technology Power Consumption................................................65 W Driver ..........................................20 cm (8”) cone woofer Standby Power Consumption ...............................0.5 W Magnetic shielding type Dimensions (W x H x D) Amplifier Output (100 Hz, 5 ohms, 10% THD) .......................................290 mm x 350 mm x 349 mm ....
