Cambridge SoundWorks P205 User's Manual
Contents
1. IMPORTANT NOTICE THE SERIAL NUMBER FOR THE SUBWOOFER IS LOCATED ON THE SUBWOOFER S CONTROL PANEL PLEASE WRITE THIS NUMBER DOWN AND KEEP IT IN A SECURE AREA THIS IS FOR YOUR SECURITY IMPORTANT SAFETY INSTRUCTIONS READ INSTRUCTIONS Al safety and operating instructions should be read before the subwoofer 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 use instructions should be followed CLEANING Unplug the subwoofer or control module from the wall outlet or other power source before clean ing Use a damp cloth for cleaning ATTACHMENTS Do not use any adapters or attach ments not recommended by Cambridge SoundWorks as they may cause hazards WATER AND MOISTURE Do not use the subwoofer or control module near water for example near a bath tub wash bowl kitchen sink or laundry tub in a wet basement or near a swimming pool or other similar areas ACCESSORIES Do not place the subwoofer on an unstable cart stand tripod bracket or table The sub woofer may fall causing serious injury to a child or adult and serious damage to the product VENTILATION Slots openings and metal fins in the cabinet are provided for ventilation to ensure reliable operation of the subwoofer and to prevent it from o2. by ear 3 Set the PHASE switch by ear 4 Set the 3dB switch by ear 5 Reset the volume control if necessary Adjustment 1 Adjust the LOWPASS control according to the Low Pass Control Settings Table on the opposite page 2 Set the subwoofer s LEVEL Use some of your favorite program material video or audio Adjust the output level until you are happy with the overall bass balance 3 PHASE control adjustment Play some program material with constant regular bass like a kick drum beat Switch PHASE in and out and listen for an increase in output The output difference you hear could be anything from negligible to signifi cant However large the difference leave this con trol set where it has the maximum effect If you do not hear any difference in the bass output leave the PHASE switch in the O out position 4 If you find the increase in output contributed by the phase adjustment is more than you care for reduce the volume control setting to bring the subwoofer output back in balance Congratulations You have now adjusted the sub wooter to blend well with your main speakers 5 The 34B switch For recordings with deep bass content setting the 3dB switch to 25 Hz will pro duce highly accurate and room shaking results as it reveals nearinfrasonic signals There are only two main reasons to set this control above 25 Hz the very deep bass bothers people in adjoining rooms or the overall out
3. preampli fier power amplifier combination or other audio compo nent with line level or speaker level outputs For brevity this guide will usually refer only to a receiver but the instructions will also apply to any audio component You can connect the P205 to a receiver s line level out put one or two RCA jacks or its speaker level outputs but not both Always disconnect the AC power from the Subwoofer enclosure before making or changing any connections Line Level Connections For most line level connections you need a signal cable with an RCA plug at both ends Connect the P205 in the following ways Dolby Digital or Dolby Surround receiver Connect a mono signal cable from the RCA jack output labeled SUB OUT or possibly labeled LFE or just SUB on the receiver to either LINE INPUT on the subwoofer Preamplifier power amplifier Connect a stereo signal cable with RCA plugs at each end from the LEFT and RIGHT preamp outputs to the L and R LINE INPUTS on the subwoofer Tris jack is usualy abled SUB OUT but may ay SUBWOOFER or LFE OUTPUT Check tha rocin comers mano Kent Dolby Digital and Dolby Surround receiver Line level connector Preampiier Power amplifier level connectors Speaker Level Connection I your receiver does not have a line level audio sig nal output or if you wish to bypass this output you need to connect your receiver s speaker outputs to the spea
4. Newton Series CAMBRIDGE SOUNDWORKS P205 200 Watt Powered Subwoofer User Manual Cambridge SoundWorks Inc 120 Water Street North Andover MA 01845 1 800 FOR HIFI cambridgesoundworks com or hifi com The lightning flash with arrowhead with in an equilateral triangle is intended to alert the user to the presence of uninsu lated dangerous voltage within the product s enclosure that may be of suffi cient magnitude to constitute risk of electric shock to persons DO NOT OPEN TO PREVENT THE RISK OF ELECTRIC SHOCK DO NOT REMOVE SUBWOOFER S COVER NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL The exclamation point within an equilat eral triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying this product POUR EVITER TOUT RISQUE DE CHOC ELECTRIQUE NE PAS DEMONTER LE COUVERCLE DU HAUT PARLEUR AUCUN ENTRE TIEN DES PIECES INTERIEURES NEST REQUIS TOUT SERVICE D ENTRETIEN NE DOIT ETRE EFFECTUE QUE PAR DU PERSON NEL D ENTRETIEN QUALIFIE READ AND HEED IMPORTANT SAFETY WARNING ON BACK OF SUBWOOFER ENCLOSURE CAUTION TO PREVENT ELECTRIC SHOCK MATCH WIDE BLADE OF PLUG TO WIDE SLOT INSERT FULLY ATTENTION POUR EVITER LES CHOCS ELECTRIQUES INTRO DUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU AU FOND
5. e required be sure the service technician uses replacement parts specified by Cambridge SoundWorks or have the same characteristics as the original part Substandard substitutions may result in fire electric shock or other hazards SAFETY CHECK Upon completion of any service or repairs to the subwoofer or control module ask the service technician to perform safety checks to deter mine that the subwoofer or control module is in proper operating condition CONTENTS 1 Powered subwoofer enclosure 2 AC power cable 3 Speaker wire connector plug attached to subwoofer 4 Rubber feet 5 Floor spikes with lock nuts INSPECTING FOR DAMAGE Examine each part carefully for shipping damage If there is any do not install or use the system Return the subwoofer to the store or merchant where you made the purchase or call Cambridge SoundWorks at 1 800 FOR HIFI 1 800 367 4434 for assistance SPECIFICATIONS P205 Dimensions 13 3 4 H x 12W x 13 1 2D Weight 35 pounds Power Output 200 Watts RMS from 20 200 Hz with less than 1 THD Dynamic Headroom gt 3dB Frequency Response 25 200 Hz 348 Crossover Frequency Range 60 Hz 200 Hz Woofer Size Nominal 10 diameter Enclosure Type Acoustic Suspension OPERATING CONTROLS 1 34B switch This switch adjusts the overall contour of the sub woofer s response The 25 Hz setting provides the deepest bass extension and the m
6. et pad and transfer the weight of the speaker directly to the floor surface Note These carpet spikes will leave four small but distinct puncture holes in wooden floors and could damage other surfaces especialy if the subwoofer is dragged after they are installed Do not use these spikes if you are concerned about the appearance of the floor beneath the carpet Carpet spike installation consists of installing adjust ing and locking the spikes Determine the final posi tion of the subwoofer before installing the carpet spikes since repositioning a subwoofer is awkward once the spikes are installed 1 Screw one locknut about half way down the shank of each carpet spike 2 Prepare a sott surface on the floor in front of the subwoofers final position Carefully upend the sub woofer so that its front panel the one with the logo rests on the soft surface 3 Screw each carpet spike into one of the four thread ed fittings Leave a small gap between the locknut and the fiting 4 Replace the subwoofer at its proper listening posi tion Adjust the spikes by lifting the subwoofer on the appropriate side and rotating the spikes until the speaker is level and stable 5 Hand tighten each locknut or use a wrench against the base to secure the carpet spike taking Care not to rotate the spike CONNECTIONS About your audio components You can connect the P205 to a receiver an integrated amplifier a
7. his will prevent damage to the subwoofer or control module due to lightning and power line surges OVERLOADING Do not overload wall outlets exten sion cords or integral convenience receptacles as this can result in a risk of fire or electric shock OBJECT AND LIQUID ENTRY Never use probes of any kind to reach into the subwoofer or control module as they may touch dangerous voltage points or short parts that could result in a fire or electric shock Never spill liquid of any kind on the subwoofer control mod ule or control module power supply SERVICING Do not attempt to service the subwoofer or control module yourself as opening or removing covers may expose you to dangerous voltage or other hazards Refer all servicing to qualified service per sonnel DAMAGE REQUIRING SERVICE Unplug the sub woofer or control module from the wall outlet or other power source and refer servicing to qualified service personnel under the following conditions a When the power cord or plug is damaged b If liquid has been spilled or objects have fallen into the subwoofer or control module If the subwoofer or control module has been exposed to rain or water d If the subwoofer or control module does not operate normally by following the operating instructions or exhibits a distinct change in performance If the subwoofer or control module has been dropped or damaged in any way REPLACEMENT PARTS When replacement parts ar
8. ker level inputs of the subwoofer First prepare two suitable lengths of speaker wire You can use lightweight 18 22 gauge speaker wire because this wire will not carry any significant elec tric current Also wire larger than 18 gauge will be somewhat harder to connect in tandem with another speaker wire Strip off 5 8 of insulation from one end of each speaker wire Strip of 3 8 of insulation from the ther end This end connects to the Speaker Wire Connector Plug Connect the speaker wires to your receiver s Lett and Right speaker outputs Front Left and Front Right speaker outputs of a multi channel receiver You will have to parallel connect these wires with the main speaker wires see diagram Positive speaker output terminals will usually be colored red and have a symbol Negative speaker output terminals will usually be colored black and have a symbol Connect the other end of the wire to the green speaker connector plug Remove the plug from the subwoofer for easier access to the screws eS e One Side E mo One Side 3 Debord nt Conductors Identity Wire Marking To insure you connect the wires properly positive to positive negative to negative note which of each speaker wire s two conductors is marked This mark ing may be a ridge in the insulation different colored conductors or printing on only one side Use the marked side of the speaker wire
9. ost accurate response We recommend this setting for high accu racy music systems The 35 Hz setting provides higher maximum loudness at the expense of some bass extension This will allow dramatic special effects in movies to be played louder PHASE The phase switch compensates for placement differ ences between the main speakers the subwoofer and your listening position This switch affects the relatively narrow range of notes where the main speakers and the subwoofer overlap Adjust it for maximum output in this narrow range not for best sound The affect this control has can be subtle Low PASS Even though a subwoofer only produces bass notes the upper end of its range should be tailored to blend well with your main speakers The sub woofer should not produce any bass your main speakers can produce The LOW PASS control sets this limit The lowest setting 60 Hz should be used with large main speakers Its middle settings should be used with small floorstanding speakers or large bookshelf speakers Its highest setting should be used with small speakers see table on page 14 4 LEVEL This control sets the overall output level of the sub woofer Adjust it for the best overall blend with your main speakers after you have set the other controls 5 ON Standby Limit Indicator This indicator glows red when the subwoofer is in Standby The subwoofer uses very little power in this mode It turns on rapidl
10. put level isn t as strong as you would like 12 FREQUENCY ADJUSTMENT With a surround processor When using the subwoofer output of a surround processor set the subwoofers frequency control fully clockwise Your surround processor has a variety of adjustments to optimize the sound based on the speakers capabilities and placement These adjustments vary by processor so refer to your processor s manual for instructions specific to your equipment Set your main center and surround settings to SMALL with subwoofer ON Set the volume control to its centered position and use the processor s level adjustments to balance the system You may then Use the remote control of the subwoofer to quickly fine tune the subwoofer level for different program material With no surround processor When using a source component that does not have a dedi cated subwoofer output you must use the crossover fre quency adjustment of the subwoofer to match the low fre quency capability of your main speakers Determine the final settings by ear speakers to determine the best setting to use as a starting Point for this control You should start from the low frequen cy limit of your main speakers For most small satellite speakers typical of home theater systems this will be between 65 100Hz Refer to the specifications of your main Room characteristics are very strong in this frequency range so don t be surprised if the final set
11. the sub to an upright position 6 Connect the AC power cord first to the subwoofer and then to the power source Tae Fuse Replacement oy Digtal and Daloy Surround are epstre waders of Doby Laboratories Licensing Corporation 14
12. tings you like are far from the starting point Use the volume control to balance the system ten to a variety of program material with good bass to fine tune the various settings In a properly set up system the bass should be smooth and clear but from the listening Position it should sound as if itis coming from the main speakers not from a separate subwoofer If is is not the case your subwoofer may be too loud or the crossover fre quency may be set too high 13 If you have a large room or desire very high sound pressure levels setting the 3dB switch to 35 Hz will stil provide good deep bass but will allow greater overall output Normal Use Afterwards if you find you want more or less bass out put from your system either adjust any available tone controls on your receiver or adjust the volume control on the subwoofer We hope you enjoy the new sonic dimensions your Newton Series powered subwoofer reveals to you Fuse Replacement The fuse holder is located on the base of the subwoofer The P205 uses a metric 5X20mm size fuse 3 5A To replace the fuse 1 Unplug the AC cord from the AC power source then remove the AC power cord from the speaker 2 Remove the fuse cap with a smal flat blade screw driver see first and second diagram 3 Replace the fuse inside the fuse cap with another metric 5x20mm size fuse 3 5A see third diagram 4 Replace the fuse and cap in the subwoofer 5 Restore
13. tion away from the intersection of two room surfaces will both reduce the maxiumn output of the subwoofer and make the output from deep bass to upper bass less even For most places in a room the orientation of the sub woofer is not critical If you place the subwoofer direct ly in a corner you may find that diagonal placement the grille panels forming a 45 degree angle with both side walls reduces wall shaking We realize many real world factors affect where you choose to place a subwoofer and corner placment may not be practical The highly flexible controls on the subwoofer allow you to effectively compensate for uneven output due to placement Ventilation Because the subwoofer enclosure panel requires adequate ventilation do not place it inside a wall unit or any piece of furniture unless precautions are taken to assure adequate ventilation Also don t place it near heat sources or against furniture draperies or other material that will block the free flow of air around and from underneath the subwoofer Moderate Bass Output Least Bass Output INSTALLING CARPET SPIKES Improving Stability With Carpet Spikes The powered subwoofer has four soft feet for level stable orientation on any flat surface and tightly woven carpets Installing and adjusting the four carpet spikes can level the speaker and improve its stability on thick carpeting The spikes penetrate a carpet and carp
14. to connect the posi tive speaker terminals Use the other wire for the nega tive terminals Using a small flat bladed screwdriver loosen the four set screws inside the Speaker Wire Connector plug Following the markings on the subwooter s connection panel for Right positive Right negative and so on insert the correct wires into the plug s openings Tighten each set screw to hold the wires in place Finally insert the Speaker Wire Connector plug into the SPEAKER LEVEL INPUT jack on the input panel 10 FINAL SETUP Power Connections Insert the subwoofer enclosure s power cable into the receptacle on the subwoofer enclosure s input panel Then insert the AC plug into an AC outlet Turn the subwoofer enclosure s power switch ON Test Your Connections Once all connections have been made test your sound system to verily the subwoofer produces bass output Advance the Bass Level control to the 10 o clock position Turn on your receiver and play a CD or movie you know to have significant bass Listen for subwoofer output as you increase your receiver s volume control up to a moderate volume level If you don t hear any output from the subwoofer slowly advance the subwoofer s Bass Level If you don t get any output recheck your connec 11 Adjusting For Best Performance We recommend you adjust the P205 according to the following sequence 1 Set the LOW PASS control 2 Set the LEVEL control
15. ver heating These areas must not be blocked or covered such as by placing the product on a bed sofa very deep pile rug or other similar surface The subwoofer should not be placed in a built in installation such as a bookcase or rack 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 or control module should be operated only from the type of power source indicated on the label If you are not sure of the type of power supply to your home consult your dealer or local power company POLARIZATION The subwoofer is equipped with a polarized alternating current line plug a plug having one blade wider than the other This plug wil 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 stil fail to fit contact your electrician to replace your obsolete outlet Do not defeat the safety purpose of the polarized plug POWER CORD PROTECTION The AC power cords should be routed so that they are not likely to be walked on No object should bring weight to bear on to the AC power cords LIGHTNING For added protection for the subwoofer or control module during a lightning storm or when it is left unattended and unused for long periods of time unplug them from the wall outlet T
16. y whenever the main system is used This indicator glows green while the sub woofer is On and operating 6 LINE INPUT Normally the Right R and Left L signal outputs from a preamp will connect to the to RIGHT IN and LEFT IN A mono input as from a receiver SUB out can connect to either input 7 SPEAKER LEVEL INPUT Connect the Right and Left speaker outputs of a stereo receiver amplifier to the plug that inserts here 8 Option The OPTION jack is provided for connection to future accessories 1 2 3 os P205 Input Panel 2 a Y Y o Peran n ao ONO ESE A P205 cms e 7 PLACEMENT The subwoofer enclosure should be placed on the floor Its location in the room affects its output The out put increases the closer the subwoofer is placed to the intersection of walls and floors see diagrams Some Advantages Of Corner Placement Placing a subwoofer in or near the comer of a room increases its maximum output Corner placement also provides the most consistent output from deep bass to upper bass Since corner placement forces more of the bass energy toward the center of the room you can operate the subwoofer at a lower overall gain setting than if it was in the middle of a wall This reduces the amount of bass someone in a nearby room will hear Other locations Any position in a room can be used but a posi
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