Cambridge SoundWorks THX 250D Speaker System User Manual
Contents
1. splashing fluids and ensure that no objects filled with liquids such as vases are placed on the apparatus Warning Safety amp Regu Notice for the USA FCC Part 15 This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However this notice is not a guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try one or more of the following measures O _Reorient or relocate the receiving antenna O Increase the distance between the equipment and receiver O Connect the equipment to an outlet on a circuit different from that to which the receiver is connected O Consult the dealer or an experienced radio TV technician CAUTION To comply with the limits for the Class B digital device pursuant to Part 15 of the FCC Rules this device must be installed with computer equipment certified to comply with the Class B limits All cables used to connect the c2. Remember to ensure that all plugs are securely fastened to their respective sockets we recommend that you take a few minutes to read through this User Guide k xX THX Certification Certified products must meet an exclusive set of performance standards established by THX These THX performance standards were originally developed in response to George Lucas personal desire to insure that the original Star Wars soundtracks heard in the cinema matched those created on the sound stage Later these standards were extended to encompass Home Theater systems and recently adapted to the specialized needs of multi channel surround reproduction from movies and games on DVD played back on a PC based multimedia system All multimedia products seeking THX Certification must meet these rigorous performance requirements and quality standards before they can carry the THX logo which is your guarantee that this THX certified Multimedia product will give you performance and reliability second to none for years to come These performance standards cover all aspects of the product including power handling frequency response dispersion characteristics ete Contents Safety Warnings Pg 2 Safety and Regulatory Information Pg 3 Important Safety Instructions Pg 4 TintroductiOn cceccceeccececeeeeeeeeeeeees Pg 6 Using the Wired Remote Pg7 Using the Auxiliary Input Pg 8 Using
3. VENTILATION Slots and openings in the cabinet are provided for ventilation to ensure reliable operation of the subwoofer and to prevent it from overheating and these openings must not be blocked or covered The openings should never be blocked by placing the product on a bed sofa rug or other similar surface The subwoofer should not be placed in a built in installation such as a bookcase or rack unless proper ventilation is provided or Cambridge Soundworks and Creative Technology sCambridge Soundworks and Creative Technology s instructions have been adhered to HEAT The subwoofer should be situated away from heat sources such as radiators heat registers stoves and other products including amplifiers that produce heat POWER SOURCES The subwoofer should be operated only from the type of power source indicated on the marking label If you are not sure of the type of power supply to your home consult your product dealer or local power company For products intended to operate from battery power or other sources refer to the operating instructions POLARIZATION The subwoofer may be equipped with a polarized alternating current line plug a plug having one blade wider than the other This plug will fit into the power outlet only one way This is a safety feature If you are unable to insert the plug fully into the outlet try reversing the plug If the plug should still fail to fit contact your electrician
4. to replace your obsolete outlet Do not defeat the safety purpose of the polarized plug POWER CORD PROTECTION Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them paying particular attention to cords at plugs convenience receptacles and the point where they exit from the subwoofer LIGHTNING For added protection for the MegaWorks THX 250D system during a lightning storm or when it is left unattended and unused for long periods of time unplug it from the wall outlet This will prevent damage to the subwoofer due to lightning and power line surges OVERLOADING Do not overload wall outlets extension cords or integral convenience receptacles as this can result in a risk of fire or electric shock OBJECT AND LIQUID ENTRY Never push objects of any kind into the subwoofer through openings as they may touch dangerous voltage points or short out parts that could result in a fire or electric shock Never spill liquid of any kind on the subwoofer SERVICING Do not attempt to service the subwoofer yourself as opening or removing covers may expose you to dangerous voltage or other hazards Refer all servicing to qualified service personnel DAMAGE REQUIRING SERVICE Unplug the subwoofer from the wall outlet or other power source and refer servicing to qualified service personnel under the following conditions a When the power supply cord o
5. MegaWorks THX 250D Multimedia Speaker System Use Guide Safety W arnings The symbol of a lightning flash arrowhead within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute risk of electric shock to persons DO NOT OPEN TO PREVENT THE RISK OF ELECTRIC SHOCK DO NOT REMOVE SPEAKERS COVER OR BACK NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL The exclamation point within an equi lateral triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accom panying this product POUR EVITER TOUT RISQUE DE CHOC ELECTRIQUE NE PAS DEMONTER LE COUVERCLE DU HAUT PARLEUR AUCUN ENTRE TIEN DES PIECES INTERIEURES N EST REQUIS TOUT SERVICE D ENTRETIEN NE DOIT ETRE EFFECTUE QUE PAR DU PERSON NEL D ENTRETIEN QUALIFIE AN CAUTION Hot Surface CAUTION This Symbol indicates that the marked item may be Hot and should not be touched without proper care To minimize the risk of burns and other inju ries to children position the device such that hot surfaces are out of their reach To minimize the risk of fire keep flammable materials like paper and cloth for example curtains away from the hot surface A Do not expose this apparatus to dripping or
6. Multiple Inputs 0 0 Pg 8 Controlling Noise and Distortion Pg 9 SPCCIUICALIONS wwscsscsehestacessedandsonvaceadese Pg 9 Using the W ired Remote Turning the system On Off Varying muting the volume Adjusting Sub Treble levels Using Headphones O For private listening you can O Ensure that the subwoofer s main power switch is On O Press the Standby Power Button once The red indicator above the button shuts off The Master Volume Mode Indicator lights up O To switch the system to Standby Mode press the Standby Power Button again Notes e On first power on the system uses a preset default master volume level two volume Level Indicators will be lit e On subsequent power on the system reinstates the last used master volume level e All volume and Sub Treble set tings will be lost if you turn off the main power switch or remove the AC power cord or wired re mote or if there is a power inter ruption The system will revert to default master volume and Sub Treble levels O If the Master Volume Mode Indicator is lit press or to vary the system volume O Ifthe Master Volume Mode Indicator is not lit press the Mode Select Button until the Master Volume Mode Indicator is lit Then press or O To increase the rate of adjustment hold down or Notes The remote will revert to Master Volume Mode if left idle for some time To mute the master volume press t
7. T TO THE USE OF THIS PRODUCT IN NO EVENT SHALL CREATIVE BE LIABLE FOR ANY LOSS OF PROFIT OR ANY COMMERCIAL DAMAGE INCLUDING BUT NOT LIMITED TO SPECIAL INCIDENTAL CONSEQUENTIAL OR OTHER DAMAGES Some states countries do not allow the exclusion of limitation of liability for consequential or incidental damages in which case the above limitation may not apply to you Creative makes final determination whether such product is defective You must deliver the product with a return material authorization RMA number and a dated proof of purchase To receive an RMA number contact Creative s Technical Support If Creative s Technical Support verifies the product is defective the Return Material Authorization Department will issue an RMA number to note on the outer package of the product being returned Creative cannot accept any product that does not include an RMA number on the package You must use the original container or the equivalent pay any shipping charges and assume the risk of damages or loss in transit Creative may use new or reconditioned parts and any replaced parts or product become the property of Creative Creative warrants the repaired or replaced product to be free from defects in material and workmanship for the remainder of the initial warranty period Technical Support Inside USA Canada and Latin America Visit our online help websites for help with installation answers to frequently asked questions or troublesho
8. being applied to the system speakers k f l ll STANDBY POWER HEN SY MASTER suB C TREBLE Oj min WH S Fig 1 Wire remote Using Multiple Inputs The MegaWorks THX 250D Table 1 Mixing audio through Digital and Analog inputs allows you to mix a second audio program source Audio Input 1 or About the built in oad an T Digital to Analog E Convertors MegaWorks THX 250D features high performance true 24 bit Analog Input 2 Digital to Analog Convertors and Auxiliary Input supports sampling frequencies J from 44 1 kHz to 96 kHz via an RCA SPDIF digital connection CD or MP3 player with Table 1 lists the results of using miniplug the multiple inputs in different analog output ways on this system Fig 2 Using Analog Input 2 Controlling N oise and Distortion MegaWorks THX 250D has moderately high input sensitivity so it may amplify the hum and hiss inherent in some audio program sources more common in analog rather than digital sources Any noise is not due to a fault in the speaker system You can minimize background noise as follows O Adjust the sound control program s master output level so that the MegaWorks THX 250D reaches a comfortably loud output level O Use the MegaWorks THX 250D volume control as your master level cont
9. he Mute Button once The system volume will be muted All previously lit Level Indicators will blink during the muting To return to listening press the Mute Button again Or press or to return to normal listening For your own safety reduce the master volume level before switch ing the system to Standby Mode O Press the Mode Select Button until the Sub or Treble Mode Indicator is lit O To increase or reduce the Sub Treble level press or To increase the rate of adjust ment hold down or Notes On first power on default Sub Treble levels flat response are applied Three Level Indicators will be lit to reflect this Pressing boosts the level and causes more Level Indicators to be lit Pressing reduces the level and causes fewer Level Indicators to be lit Subsequent Sub Treble settings will be stored during Standby Mode and recalled when you next turn the system on using the remote connect headphones to the Headphones Output of the wired remote This will mute all speakers Adjust the headphones volume as you would for the speakers The Sub Mode can be used to adjust the bass level you hear from the headphones Treble settings can be adjusted in the same way as for the speakers When you disconnect the headphones the system will revert to a preset default master volume setting two Level Indicators lit in order to prevent high headphones volume levels from
10. ld be read before the MegaWorks THX 250D amplified subwoofer satellite system is operated RETAIN INSTRUCTIONS The safety and operating instructions should be retained for future reference HEED WARNINGS All warnings on the subwoofer and in the operating instructions should be adhered to FOLLOW INSTRUCTIONS All operating and usage instructions should be followed CLEANING Unplug the subwoofer from the wall outlet or other power source before cleaning Do not use liquid cleaners or aerosol cleaners Use a damp cloth for cleaning ATTACHMENTS Do not use attachments not recommended by Cambridge Soundworks and Creative Technology as such items may cause hazards WATER AND MOISTURE Do not use the subwoofer near water for example near a bath tub wash bowl kitchen sink or laundry tub in a wet basement or near a swimming pool and other similar conditions ACCESSORIES Do not place the MegaWorks THX 250D system on an unstable cart stand tripod bracket or table The subwoofer or satellites may fall Causing serious injury to a child or adult and serious damage to the product Use only with a cart stand tripod bracket or table recommended by Cambridge Soundworks and Creative Technology or sold with the product Any mounting of the satellites or subwoofer should follow the manufacturer s instructions and should use a mounting accessory recommended by Cambridge Soundworks and Creative Technology
11. ls Compliance This product conforms to the following Council Directive Directive 89 336 EEC 92 31 EEC EMC 73 23 EEC LVD atory Information Declaration of Conformity According to the FCC96 208 and ET95 19 Manufacturer Importer s Name Creative Labs Inc Manufacturer Importer s Address 1901 McCarthy Boulevard Milpitas CA 95035 United States Tel 408 428 6600 declares under its sole responsibility that the product Trade Name Creative Labs Model Numbers MMS0650 has been tested according to the FCC CISPR22 85 requirement for Class B devices and found compliant with the following standards EMI EMC ANSI C63 4 1992 FCC Part 15 Subpart B Complies with Canadian ICES 003 Class B This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 This device must accept any interference received including interference that may cause undesirable operation Ce mat riel est conforme la section 15 des r gles FCC Son Fonctionnement est soumis aux deux conditions suivantes 1 Le mat riel ne peut tre source D interf rences et 2 Doit accepter toutes les interf rences reques Y compris celles pouvant provoquer un fonctionnement ind sirable Compliance Manager Creative Labs Inc September 11 2002 IMPORTANT SAFETY INSTRUCTIONS READ INSTRUCTIONS All safety and operating instructions shou
12. oftware described in this document is furnished under a license agreement and may be used or copied only in accordance with the terms of the license agreement It is against the law to copy the software on any other medium except as specifically allowed in the license agreement The licensee may make one copy of the software for backup purposes Copyright 2002 by Creative Technology Ltd All rights reserved Version 1 0 September 2002 2002 Cambridge SoundWorks Inc All rights reserved Cambridge SoundWorks is a registered trademark of Cambridge SoundWorks Inc Andover MA USA THX is trademark or registered trademark of THX Ltd All other logos brand and product names are trademarks or registered trademarks of their respective holders All specifications are subject to change without prior notice Actual contents may differ slightly from those pictured Introduction Thank you for purchasing the MegaWorks THX 250D by Cambridge SoundWorks This high quality 2 1 amplified multimedia speaker system features the finest drivers precision internal crossover and amplifier circuitry in an elegant enclosure design Analog and digital sources up to 24 bit 96 kHz are supported making MegaWorks THX 250D the ideal 2 1 channel companion for the latest 24 bit 96 kHz Sound Blaster Audigy series audio cards For instructions on how to set up your speakers refer to the Quick Start leaflet provided in the MegaWorks THX 250D package
13. omputer and peripherals must be shielded and grounded Operation with non certified computers or non shielded cables may result in interference to radio or television reception Modifications Any changes or modifications not expressly approved by the grantee of this device could void the user s authority to operate the device The following sections contain notices for various countries Notice for Canada This apparatus complies with the Class B limits for radio interference as specified in the Canadian Department of Communications Radio Interference Regulations Cet appareil est conforme aux normes de CLASSE B d interference radio tel que spe cifie par le Minist re Canadien des Communications dans les r glements d interf rence radio Important Notice The serial number for the MegaWorks THX 250D is located on the subwoofer Please write this number down and keep it in a secure area This is for your security CAUTION Take care to prevent accidental operation of your new loudspeaker system at excessive sound pressure levels In a typical personal computer installation the MegaWorks THX 250D satellite speakers are less than a meter from the listener If you do not hear sound from your new speaker keep the MegaWorks THX 250D s volume control at a low level two LED indicators lit on the wired remote while trying to restore sound to your system This will prevent accidental operation at uncomfortably loud leve
14. oting tips Our websites hold a wealth of infor mation as well as up to the minute software and driver upgrades http www americas creative com support For comments or questions regarding our Technical Support you can also contact us at the following address Creative Labs Inc Technical Support 1523 Cimarron Plaza Stillwater OK 74075 If after consulting our online help you still have an installation question on a Creative product you may contact us by the following numbers please have your system hardware and operating system configuration information and Creative product model and serial numbers available for the call Telephone 405 742 6622 Technical Support Inside Asia To reach Technical Support via the Internet visit our website at http asia creative com support For comments or questions regarding our Technical Support you can also contact us at the following address Creative Technology Ltd Technical Support 31 International Business Park Creative Resource Singapore 609921 If after consulting our online help you still have an installation question on a Creative product you may contact us by the following numbers please have your system hardware and operating system configuration information and Creative product model and serial numbers available for the call 65 6895 4100 telephone and 65 6569 6640 FAX Our operating hours are Singapore Time Mon Fri 9 00 A M 6 00 P M Sat Sun amp Public Holiday
15. r plug is damaged b If liquid has been spilled or object have fallen into the subwoofer c If the subwoofer has been exposed to rain or water d If the subwoofer does not operate normally by following the operating instructions or exhibits a distinct change in performance e If the product has been dropped or damaged in any way REPLACEMENT PARTS When replacement parts are required be sure the service technician has used replacement parts specified by Cambridge Soundworks and Creative Technology or have the same characteristics as the original part Unauthorized substitutions may result in fire electric shock or other hazards SAFETY CHECK Upon completion of any service or repairs to the MegaWorks THX 250D system ask the service technician to perform safety checks to determine that the MegaWorks THX 250D system is in proper operating condition WALL OR CEILING MOUNTING The MegaWorks THX 250D satellites should be mounted to a wall or ceiling only as recommended by Cambridge Soundworks and Creative Technology User Guide MegaW orks THX 250D Information in this document is subject to change without notice and does not represent a commitment on the part of Creative Technology Ltd No part of this manual may be reproduced or transmitted in any form or by any means electronic or mechanical including photocopying and recording for any purpose without the written permission of Creative Technology Ltd The s
16. rol Examine your computer s mixer software for example Surround Mixer in Sound Blaster software Turn off any inputs you don t need Microphone for instance Set the remaining input volume controls to about 70 of their overall scale Specifications Specifications Total System Burst Power 300 W Satellite Frequency Response 150 Hz 20 kHz Subwoofer Frequency Response 32 Hz 150 Hz Signal to Noise Ratio SNR 99 dB Input voltage For Europe Asia 230Vac 50 60 Hz 2 5A For USA 120Vac 60 Hz 5A Magnetic Shielding All satellite speakers are shielded to allow placement close to display devices that are sensitive to magnetic fields Limited Hardware W arranty Creative Technology Ltd Creative warrants the product enclosed herein to be free of defects for a period of twelve 12 months from the date of purchase In the event of a defect in material or workmanship during the warranty period Creative at its sole discretion will either repair or replace the defective product when the defective product is returned to Creative by the owner as further outlined herein The remedy for this breach in warranty is limited to servicing or replacement only and shall not cover any other damages whatsoever CREATIVE SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY NON INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE WITH RESPEC
17. s closed 12 CAMERIDCGDH OUNDWORK 100 Brickstone Square Andover MA USA 01810 Phone 800 367 4434 Fax 978 475 7219 www cambridgesoundworks com or e mail us at info cambridgesoundworks com 0200000003009
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