Sunfire Home Theater System Home Theater System User Manual
Contents
1. Driver Extra large magnet and long throw mechanical design yield very high back emf The result is extraordinarily high operating efficiency that is more acoustic output for each watt of input Internal System Gain 42 dB from left input jack to speaker with the Bass Level control at 0 dB 54 dB with the control fully clockwise 36 dB from right input jack to speaker with the Bass Level control at O dB 48 dB with the control fully clockwise The Sunfire True Subwoofer utilizes differential gain on the left and right inputs to retain both L R and L R information 2006 Sunfire Corporation All rights reserved Sunfire Corporation reserves the right to improve its products at any time Therefore specifications are subject to change without notice Manual part number 913 124 00 Rev D Sunfire User s Manual Troubleshooting The Sunfire Subwoofer is expertly designed and built to provide years of trouble free performance Most prob lems that occur can usually be solved by checking your setup or making sure that the components connected to the amplifier are on and fully operational The following information will help you deal with common problems you may ex perience during normal use If a problem still persists please contact your Sunfire Dealer for assistance Not enough bass Sunfire User s Manual Check that the input connections are going to the input terminals and not the output terminals In o2. Irue Subwoofer Super Junior Sunfire Corporation Snohomish Washington om m e a BASS LEVEL pea BYPASS unfire e eb CROSSOVER e ET True Subwoofer Super Junior NORMAL D BUILT UNDER ONE OR MORE OF THE FOLLOWING PATENTS AND PATENTS PENDING 4 218 660 4 484 150 5 748 753 5 837 074 WARNING 4 AMP E mas 120 VAC Designed and built by BOB CARVER e User s Manual RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION 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 Safety Instructions 1 Read Instructions All the safety and operation instructions should be read before the Sunfire Component is operated 2 Retain Instructions The safety and oper ating instructions should be kept for future reference 3 Heed Warnings All warnings on the Component and in these operating instruc tions should be followed 4 Follow Instructions All operating and other instructions should be followed 5 Water and Moisture The Component should not be used near water for example near a bathtub washbowl kitchen sink laun dry tub in a wet basement or near a swim ming pool etc This Component is intended for use in Moderate climates Do not use in Tropical climates 6 Ventilation The Component should be situated so that its location or
3. NORMAL ORAL e CROSSOVER c N 30 Hz o cA W N Designed and built by BOB CARVER Phase Control This control changes the relative phase of the subwoofer with respect to your other speakers Use this control to help blend the subwoofer with the rest of your system This is accomplished by adjusting the control in small incre ments as you listen for the most bass at your listening position As a final trim readjust the Crossover Frequency and Bass Level controls after the phase has been set Outputs Line level high pass output signals are available at these jacks These outputs are active whenever a signal is hooked up to the inputs of the subwoofer This crossover is a passive network with a fixed crossover frequency of 70 Hz and a 6 dB per octave slope We recommend using this high pass function with main satellite speakers that are small and not designed to reproduce low frequencies If your main speakers are capable of operating full range then you will not need to use the high pass function Sunfire User s Manual To use the high pass outputs connect the preamp outs on your preamp receiver to the subwoofer s line level in puts using good quality RCA type patch cords Then connect a second patch cord from the subwoofer s outputs to the inputs of your main amplifier This will allow your main speakers to oper ate at frequencies above 70 Hz and the subwoofer to operate at frequencies below 70
4. adjustments TO FRONT SPEAKERS 11 Sunfire User s Manual Connections to a preamplifier using Y cables If your preamplifier does not have a sub LFE output you can use Y cables to send its main outputs to both the subwoofer and your amplifier Sunfire Corporation Snohomish Washington e 0 dB 15 dB BASS LEVEL nd MIN Sunfire om ss MEE CROSSOVER True Subwoofer Supi i NORMAL The subwoofer will play the low frequency range and your front speakers will play the full range INPUTS UNE e Although bass is com monly distributed evenly between left and right channels L R bass movie soundtracks often contain differential L R bass The opening scene in Top Gun for example has loads of L R bass information If this is not preserved the bass in these scenes sounds ane mic The Sunfire Subwoofer utilizes differential gain on the left and right inputs to retain both the L R and L R information Therefore systems which do not have a dedicated sub LFE output should use both the left and the right inputs as shown for the greatest bass impact TO FRONT SPEAKERS AMPLIFIER An alternative connection method without using Y cables is shown on the next page If your preamp receiver has a dedi cated sub LFE output then only the Left Mono input is used as shown on the previous page 12 Sunfire User s Manual Using the line level high
5. first thought may be that the subwoofer has a problem but this is more than likely caused by a ground loop in your system Follow these steps to isolate the main cause of the ground loop hum there may even be more than one cause e Try to have all of your equipment on the same electrical outlet or circuit see page 9 for more details e If your subwoofer is a fair distance away from your other equipment you may use a 15 amp extension cord as long as it has a ground connection A e Turn off all components in your system including the subwoofer amplifiers and the preamplifier before disconnecting or connecting cables NOTE Never remove the ground pin from any power cords This is very dangerous First remove every connection from the subwoofer to the rest of your system Plug the subwoofer power cord back in and check for the hum If it is still there try plugging it into a different outlet in case it is picking up interference on the AC line e If you have followed the above guide lines for the power connections and a hum is still present then there is one very common problem to consider a ground loop introduced by connecting a cable TV line to a VCR or TV which is then connected to the preamp This can be addressed as follows e Disconnect all cables which come from outside the room such as cable TV satellite TV or roof top antennas Make sure that they are disconnected where they fir
6. in rush current surge as the power supply capacitors charge up This may give rise to an audible snap from the outlet as the plug is inserted This can be avoided by plugging the subwoofer into a switched outlet or switched power strip rated at 15 Amps or more Sunfire User s Manual Sunfire User s Manual Limited Warranty Sunfire Corporation is proud of its products which have been built with care using advanced technology and premium component parts Your unit has been crafted to perform properly for many years Sunfire Corporation offers the following Warranty to you the owner of a new Sunfire product The Sunfire Corporation Warranty for the Subwoofer Super Junior is in effect for TWO years from the date of original retail purchase The Sunfire Corporation Warranty covers defects in materials and workmanship The following however are excluded a Damage caused during shipment b Damage caused by accident mis use abuse of operation contrary to the instructions specified in the Sunfire Corporation user s manual c Units where the serial number has been defaced modified or removed d Damage resulting from modification or attempted repair by any person not authorized in writing by Sunfire Corporation e Units purchased from unauthorized dealers The Sunfire Corporation Warranty ex tends to the original owner or subsequent owner s during the two year warranty period so long as the original dated pu
7. outside and into the atmosphere It can reach temperatures of 60 degrees C which will feel hot to the touch using nerves of flesh and blood as temperature sen sors As uncomfortable as it may feel 60 degrees C cannot burn you and in fact is almost cool to copper silicon steel and aluminum the materials from which your woofer is constructed AC Power Considerations Ensure that the unit is plugged into an outlet capable of supplying the correct voltage specified for your model Unplug your subwoofer s power cord from the electrical outlet if it will be left unused for a long period of time Route the power supply cord so it is not likely to be walked on or pinched by items placed upon or against it especially at plugs convenience receptacles and the point where it exits from the unit Magnetic Fields We recommend that you place your woofer further than two feet away from your TV VCR tape deck or computer so the speaker s magnet won t distort the colors of your TV picture or erase your video tapes audio tapes or computer discs Sunfire User s Manual Connections Please consider the following when set ting up your new system Before making or changing any connections ALWAYS make sure that the subwoofer is unplugged from the wall and your other components are turned OFF Also turn down the volume control of the subwoofer and your preamplifier or receiver Tape Deck Preamplifier Power
8. pass outputs If you are using a pream plifier which does not have a sub LFE output you can send its left and right front output into the subwoofer s line level inputs and then connect the subwoofer s high pass outputs to the inputs of your amplifier Sunfire Corporation Snohomish Washington 9 o Sunfire True Subwoofer Super Junior BASS LEVEL CROSSOVER PHASE The subwoofer will play the low frequencies and your amplifier and front speakers will play the frequency range above the subwoofer s fixed high pass crossover point PREAMPL IH The signals coming out of the subwoofer s high pass outputs are not affected by any of the controls They are just a copy of the signals going in except that the low bass is filtered out This uses the subwoofer s passive crossover network rather than the active net work and controls This is an excellent method if your speakers are small satel lites or mini monitors and or your power amplifier is of limited power such as a tube amp i TO FRONT SPEAKERS Sunfire User s Manual 13 Using the speaker level inputs If you are using a re ceiver which does not have a subwoofer output or line level outputs pre outs you can connect its speaker outputs to the subwoofer s speaker level inputs The front speakers can still be connected to your receiver Sunfire Corporation Snohomish Washington S o Sunfire Tru
9. position does not interfere with its proper ventilation Ensure a minimum distance of 2 inches 5 cm around the Component for sufficient ventilation For example the Component should not be situated on a bed sofa rug or similar surface that may block any venti lation or placed in a built in installation such as a bookcase or cabinet that may impede the flow of air Ensure that the ventilation is not impeded by covering the control panel with items such as newspapers table cloths curtains shaggy dogs sleeping cats etc 7T Heat and Flames The Component should be situated away from heat sources such as radiators or other devices which produce heat Do not place naked flame sources such as lighted candles on top of or near the Component 8 Power Sources The Component should be connected to a power supply only of the type described in these operation instruc tions or as marked on the Component 2 The lightning flash with arrowhead symbol 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 a risk of electric shock to persons The exclamation point within an equilateral triangle is intended to alert the user of the presence of important operating and main tenance servicing instructions in the literature accompanying the appliance 9 Power Cord Protection Power s
10. the fuse Never use a fuse with a larger current rating than 4 amps 8 IEC Linecord socket The Sunfire Subwoofer comes with a detachable linecord which connects here AC outlet The outlet must have a circuit rating of 8 amps or more a typical home circuit is rated at 15 amps Always unplug the power cord before inspecting or changing Connect the linecord to the subwoofer before connecting the other end to an 120 Volt 60 Hz If you live in or move to a country where the power grid is 220 240 Volts the subwoofer must be plugged into a step down transformer that is rated at 500 watts or more A 9 Power Auto on Indicator This light is bright when the subwoofer is on and dim when the subwoofer is in its standby mode This is controlled by the AUTO ON OFF circuit The pres ence of an audio signal turns the unit on After approximately fifteen minutes of signal absence the subwoofer will go to its standby mode Never plug the subwoofer directly into 220 240 Volts AC as this will cause catastrophic circuit failure The light will only go completely off when the unit is unplugged from the wall 7 Installation Observe the following general precau tions and read the safety instructions on pages 2 and 3 before using your Sunfire Subwoofer e Never open the cabinet or remove the metal control panel as this might result in an electrical shock to you or damage to the unit e Protect it from prolonge
11. Hz see page 13 5 Line Level Inputs Connect these unbalanced inputs with RCA type patch cords to the line level outputs of your receiver or preamp If your preamplifier or receiver has a single sub LFE output connect it to the subwoofer s left input jack see page 11 There is no need to use the subwoofer s right input jack If you want to run your main satellite speakers full range use a Y adapter at the preamplifier outputs see page 12 In this way you can send the preamplifier s output signal to your main amplifier and to the subwoofer at the same time 6 Speaker Level Inputs Under normal conditions the preferred connection is through the line level inputs If this is difficult or not possible in your system then you can use the speaker level inputs Also if you expe rience excessive noise or hum with the line level inputs often a simple change to the speaker level inputs will result in a lower background noise level Connect the speaker level inputs to the speaker level outputs of your amplifier or receiver using speaker wire The binding posts can accept bare wire banana dual banana or spade con nections Sunfire User s Manual Your amplifier or receiver MUST have common grounded outputs or it will be damaged if connected to the subwoofer s speaker level inputs A T Line Fuse The subwoofer is supplied with a con servative 4 amp slow blow type fuse to protect the electronics AN
12. Mon input even though you are driv ing one woofer with a right channel drive and the other with a left channel drive If your preamplifier has a single sub LFE output use a Y cable to split it into two outputs Sunfire User s Manual oystem Configurations The following pages show some typical connections that you might make in your installation They show how the inputs and outputs of the Sunfire Subwoofer are connected to your preamplifier or receiver Connections to a preamplifier s subwoofer output If your preamplifier has a subwoofer output often labeled LFE for Low Frequency Effects it can be connected to the subwoofer s Left Mono input as shown This is the simplest and recommended connection A receiver with a sub LFE output can be connected in the same way The subwoofer will play the low frequency range and the other speakers will play the frequency range delivered to them by your amplifier If you have a Home Theater preamplifier it may have an independent subwoofer volume control Make sure this is cor rectly adjusted and that the Sunfire Subwoofer s crossover frequency is set to BYPASS This is by no means an iron clad rule rather it is a good starting point See the crossover frequency control details on page 6 and adjustments on page 15 You can set the subwoofer s Bass Level control to 0 dB and then use the preamplifier s subwoofer level control for normal and routine
13. alog outputs of a CD player di rectly into the subwoofer s line level inputs Turn down the subwoofer s volume level before turning on the CD then play some of your favorite music samples with heavy bass and turn up the subwoofer to a comfortable and safe level 10 A 3 Walk around the room listening and stand in all the positions where you might be able to place the subwoofer Try crouching down and try the corners Find the place where the subwoofer s bass output sounds the loudest 4 Shut things down and install the subwoofer in this position Make sure the control panel is not touch ing anything and that it can receive good ventilation Although low frequencies are non di rectional factors such as room reflec tions standing waves resonance and ab sorption strongly affect your subwoofer s performance Moving the subwoofer from one corner to another can have a major effect on the bass response Remember to keep the subwoofer at least two or three feet away from any TV screen computer VCR or magnetic tapes and discs This will reduce the chance of the magnetic fields upsetting the TV screen or erasing your magnetic media Using Two Subwoofers If you wish to use two woofers the sound output will double an increase of 6 dB Locate the woofers with one in each corner and experiment with the location and phase control to achieve the best bass response Always drive each woofer through the Left
14. cted side The Amplifier The large movement range of the driv ers creates greater air pressure inside the box than a conventional woofer Therefore the drive amplifier must be much more powerful than an ordinary woofer amplifier In fact it has to be so powerful that it is almost hard to believe The power amplifier within your Sunfire Subwoofer is capable of delivering over 1 500 watts into a 4 6 ohm resistor the voice coil resistance of the subwoofer s driver When the same full output is ap plied to the driver however the enor mous back electromotive force generated as a consequence of its large motion and giant magnet causes the current flow to be much less than if it were a 4 6 ohm resistor It is this singular property of the driver that allows the woofer to be ap proximately ten times more efficient than a woofer this size would normally be Hence the actual average input power is substantially less than 1 500 watts and is approximately 120 watts for most musical material on the loudest passages A compressor circuit kicks in automati cally if the input signal level reaches a level that would overload the driver This maintains a ceiling on the output without clipping If the input signal is driven even further a soft clipping circuit is enabled This allows the woofer to put more sound into the room to satiate the power hungry user but without distortion or damage to the woofer Thus for explosive scenes i
15. d exposure to direct sunlight and other direct sources of heat such as heating vents and radiators e To prevent fire or shock do not expose the unit to rain or moisture If fluid or a foreign object should enter the unit immediately turn off the power and contact your Sunfire Dealer e Avoid excessive exposure to extreme cold or dust e Do not place heavy objects on top of the unit e Do not place the subwoofer with its control panel against the floor e If you wish to place your woofer so the drivers face the floor and ceil ing thereby moving up and down use at least 1 1 2 inch high spikes or feet for support They may be attached either with screws or self stick backing This arrangement will impart substantial house and floor shaking motion e Four extra heavy shock absorbing rubber mounting feet have been included If your woofer tends to wander about slightly while in use place these feet just inside the existing feet positions These shock absorbing mounts will let the woofer rock freely thereby absorb ing low frequency rocking energy allowing it to adhere solidly to the floor 8 Heat rise e Allow adequate ventilation around the metal control panel of the subwoofer e Do not let anything come into contact with the panel and keep it at least two inches away from any walls The metal control plate serves as the amplifier heat sink and also as a conduit to remove internal heat to the
16. e Subwoofer Super Junior AC LINE The subwoofer s internal amplifier supplies the power to reproduce the low fre quency range It receives a sample of the signal going to your front speakers An insignificant fraction of your receiver s power is trans ferred to the subwoofer There is no need to use the speaker level inputs if you are using a separate amplifier and preamplifier Such systems are best connected using the line level inputs as shown in the previous diagrams TO FRONT SPEAKERS If you are using the line level inputs and there is a excessive amount of noise or hum present using the speaker level inputs may yield a lower background noise level Your receiver MUST have common A N grounded outputs or it will be dam aged if connected to the subwoof er s speaker level inputs 14 Sunfire User s Manual Sunfire User s Manual Adjusting the controls There are two main methods for adjust ing the level crossover frequency and phase of the Sunfire Subwoofer to match a system e Bob Carver s preferred method By listening and making the adjustments to suit your taste Laboratory method By measuring the output and adjusting for a flat frequency response Excellent results can be obtained if you make the adjustments based on simply listening This is Sunfire s preferred meth od as it allows the system to be voiced based on what sounds the best whereas laboratory
17. flat frequency response can often be clinical and less than exciting The following procedure is for those who prefer a more methodical and scien tific approach This excerpt is from The Audio Critic issue 24 page 31 written by contributing editor David Rich and is reprinted here with their kind permission You will need a test CD with low fre quency warble tones and a sound pres sure level meter The Radio Shack SPL meter will do fine as will the Stereophile test CD Step 1 Disconnect the subwoofer and run the main speaker with a tone in its passband 80 100Hz Measure the level Step 2 Disconnect the main speaker and reconnect the subwoofer Set the subwoofer to its highest crossover frequency Set the level control of the subwoofer to give the same sound pres sure level with the same tone you used in Step 1 Step 3 With both the subwoofer and the main speaker connected measure the level of the tones at the available frequencies Because the crossover is set too high you will have a peaked response Adjust the crossover control to get the smoothest response Step 4 Use the phase control to make the response even smoother It has its biggest effect at the crossover frequency You can iterate between the crossover and the phase controls Keep your hands off the level control It was set correctly in step 2 Step 5 Listen to the subwoofer Resist all temptations to turn up the level control Play s
18. n movies this produces extremely high sound pressure levels SPL in your room without the woofer banging against its mechanical stops For more details of the subwoofer de sign please call us or view our website www sunfire com 5 Control Panel Features 1 6 Sunfire Corporation Snohomish Washington gt Sunfire True Subwoofer Bass Level This control lets you match the output level of the subwoofer to the level of your satellite main speakers The subwoofer output will increase as this control is rotated clockwise When you have just installed your system turn this down first before turning on your subwoofer This will prevent any loud surprises Crossover Frequency This controls the high frequency cutoff 4 point With the control set to the 100 Hz mark the subwoofer will reproduce frequencies up to 100 Hz If the control is set fully clockwise the crossover is bypassed and the subwoofer will re produce a wide frequency range With the control fully counter clockwise the subwoofer reproduces a narrow range up to 30 Hz Rotate the control until the bass sounds natural If the mid bass sounds natural but you want more low bass turn the control down a little then turn the Bass Level control up by about the same amount This increases the low bass output while leaving the mid bass output the same e 0dB _ 1508 C BASS LEVEL N MIN 100 Hz BYPASS
19. nnel Sunfire User s Manual 15 To prevent electric shock do not use this polarized plug with an extension cord receptacle or other outlet unless the blades can be fully inserted to prevent blade exposure Pour pr evenir les chocs lectriques ne pas utiliser cette fiche polarise avec un prolongateur un prise de courant ou une autre sortie de courant sauf si les lames peuvent tre ins r es fond sans laisser aucune pariie d couvert 16 Grounding or Polarization Precau tions should be taken so that the ground ing or polarization means of the Com ponent is not defeated This apparatus does not exceed the Class A Class B whichever is applicable limits for radio noise emissions from digital ap paratus as set out in the radio interference regulations of the Canadian Department of Communications ATTENTION Le pr sent appareil num ri que n met pas de bruits radio lectriques d passant las limites applicables aux ap pareils num riques de class A de class B selon le cas prescrites dans le r glement sur le brouillage radio lectrique dict par les ministere des communications du Canada WARNING THIS SUBWOOFER IS CAPABLE OF PRODUCING SOUND PRESSURE LEVELS IN EXCESS OF 108 dB YOU MUST TAKE EVERY PRECAUTION TO PROTECT YOUR HEARING FROM PERMANENT DAMAGE A Contents Safety Instructions Introduction Features Unpacking Care Overview Control Panel Features Installation Connectio
20. ns Location System Configurations Adjusting the Controls Specifications Troubleshooting Guide Limited Warranty Service Assistance To find out more about this and other Sunfire products please visit our website www sunfire com Sunfire User s Manual 3 Introduction Thank you for purchasing a Sunfire True Subwoofer Super Junior We hope you enjoy it and the music it makes as much as we have enjoyed creating it for you The big breakthrough features of the subwoofer are its uncanny tracking downconverter and its long throw high back electromotive force driver Taken together they provide this subwoofer with as much bass as you could get from sev eral 15 inch drivers mounted in a cabinet the size of a small refrigerator Unpacking Your Sunfire Subwoofer should reach you in perfect condition If you do notice any shipping damage please contact your Sunfire Dealer immediately Gently lift out the unit and remove all the packing material It is important to save all the packing materials and the box in case your subwoofer ever needs to be moved or shipped for repair Make sure that you keep your sales receipt It is the only way to establish the duration of your Limited Warranty and it may come in useful for insurance purposes Please take a moment to fill out and mail the Sunfire Warranty Registration card Also read the serial number located on the control panel and record it here Features High
21. o BYPASS or part of the bass range will be missing Not enough bass in a 5 1 system 5 1 home theater preamplifiers usually have a bass management system which allows the bass to be redirected among your speakers For example the bass normally present in the front speak ers can be redirected to play in the subwoofer or the subwoofer can play the bass from all the speakers in addi tion to its dedicated LFE low frequency effects channel Make sure that all of the bass management options are cor rectly set The preamplifier may have a way of turning the subwoofer output off entirely so check that it is always on Check that the preamplifier calibration procedure is correctly adjusted Usually the preamp will send a test tone through all the speakers in your system allowing you to adjust trim the volume of each channel until they are all playing at the same level If the bass is weak only when playing 5 1 surround sources check that your preamplifier is correctly set to decode the 5 1 surround modes such as Dolby Digital or DTS DVD discs have a menu which allows you to select which soundtrack to play Check that the correct 5 1 surround audio soundtrack is selected otherwise it may just play stereo into your preamp and you won t get the true LFE signal into the subwoofer 17 Hum Adding any component such as a sub woofer to an existing system will often give rise to a hum which wasn t there before Your
22. omething with really deep bass to confirm that your subwoofer is working Control settings Use this drawing to record some of your favorite settings 0dB N 15dB BASS LEVEL lt N MIN PELA ries CROSSOVER N 30 Hz y gt 180 e m PHASE N o 0 dB S 15 dB BASS LEVEL N MIN fy BYPASS M m CROSSOVER N 30 Hz J 180 Mr c PHASE N 0 15 opecifications Amplifier Output 1 500 Watts rms 4 6 Q impedance High Cut Filter 30 Hz 100 Hz adjustable The crossover can be bypassed by rotating the crossover frequency control fully clockwise Frequency Response 22 Hz 100 Hz Power Line Voltage AC 120 V 60 Hz Dimensions 9 x 9 x 9 Weight 29 lbs Finish Black anodized control plate and dark rosewood lacquer cabinet Line Power Consumption 300 W average 22 Hz to 100 Hz at absolute maximum continuous output 1200 W peak time limited basis Output Levels Greater than 108 dB peak SPL includes room gain from 25 Hz to 90 Hz A typical Sunfire subwoofer can be expected to best its specified minimum peak SPL by several decibels 16 Input Sensitivity for Full Output 240 mVrms from left input with volume control at 0 dB 90 mVrms with volume control fully clockwise 0 48 Vrms from right input with volume control at O dB 180 mVrms with volume control fully clockwise Input Impedance 30 KO for Line Level inputs 5 6 KQ for Speaker Level inputs
23. poration into existing systems or as part of a subwoofer satellite speaker combination Controls for adjusting the volume crossover frequency and phase allow the subwoofer to be perfectly matched to any listening environment and audio components The Drivers To have lots of bass requires moving lots of air Your Sunfire Subwoofer incor porates two drivers that can move back and forth approximately five times more than a normal subwoofer This gives it a lot of air moving capacity which allows for majestic bass performance Two drivers share the acoustic output Sometimes one driver appears to be moving more than the other They both move the same amount only when op erating at the limit of their excursion and power output or when bass requirements and music requirements demand maxi mum output from the system Otherwise the power is shared between the two drivers in a way that depends on the mo mentary amplitude and the momentary musical spectrum It is normal for one or the other to move more or less than its mate during operation On the driver to the right of the control panel there is a slight bump under which is a pressure cap The bump is normal The driver on the left is absolutely flat and very rugged The one with the slight bump is not quite as rugged and modest care should be taken with it though it is still very strong During installation you should position the driver with the bump towards a prote
24. power high efficiency amplifier High gloss dark rosewood finish also referred to as Deep Bing Cherry Lacquer Very low distortion Long throw premium quality drivers Extremely compact size e Automatic signal sensing turn on and standby mode Line level unbalanced inputs Speaker level binding post inputs Line level high pass outputs Continuously variable phase control Continuously variable crossover fre quency adjustment Continuously variable volume level control e Soft clipping circuit allows graceful overload and prevents speaker dam age due to clipping e Gold plated inputs and outputs Care To maintain the speaker cabinet s fin ish first unplug the power cord and then use a soft cloth to clean the surfaces If your Sunfire Subwoofer needs ser vicing please read the Troubleshooting section on page 17 If a problem still persists contact your nearest authorized Sunfire Dealer Serial Number Purchased from Sunfire User s Manual Sunfire User s Manual Overview Your Sunfire Subwoofer is designed to give you the best possible low frequency sound quality for your Home Theater ex perience It incorporates a tremendously powerful built in amplifier and a pair of drivers to produce tight floor rumbling bass down to 22 Hz that you can feel as well as hear The subwoofer has an adjustable high cut filter and a choice of speaker level or line level inputs for easy incor
25. r receive instructions to ship the unit to the factory Please save the original shipping carton and packing materials in case shipping is required Always use the origi nal cloth bag and packaging materials and method or the finish may be dam aged Please do not ship Parcel Post NOTE Before sending in your unit for repair you must call Sunfire for return authorization Include a complete description of the problem indicating how you have it connected the associated equipment in your system and a copy of your purchase receipt Initial shipping costs are not paid by Sunfire Corporation return ground shipping costs will be prepaid if repairs were covered by the scope of this War ranty 19 True Subwoofer e Super Junior True Subwoofer Super Junior Sunfire Corporation P O Box 1569 Snohomish WA 98291 3 Manual part number 913 124 00 Rev D
26. rchase receipt is presented whenever warranty service is required All implied warranties including war ranties or merchantability and fitness for particular purposes are limited in duration to the two year length of this Warranty unless otherwise provided by state law Sunfire Corporation s liability is limited to the repair or replacement at our op tion of any defective product and shall not in any event include property or any other incidental or consequential damages which may result from the fail ure of this product Some states do not allow limitations on how long an implied warranty lasts and or do not allow the exclusion or limitation of incidental or consequential damages so the above limitations or exclusions may not apply to you This Warranty gives you specific legal rights and you may also have other rights which vary from state to state We suggest that you attach your purchase receipt to this Warranty and keep these in a safe place Thank you for your choice of a Sunfire Corporation product Service Assistance We suggest that you read the Limited Warranty completely to fully understand your Warranty Service coverage If your Sunfire Corporation product ever requires service write to us or call Sunfire Corporation Technical Services Department P O Box 1589 Snohomish WA 98290 Tel 425 335 4748 Fax 425 335 4746 You will be directed to an authorized Sunfire Corporation Service Station o
27. st enter the room so they are making no connection to your preampli fier TV or any other component If the 18 hum is caused by the cable TV line then you will need a ground loop isolator This is an inexpensive device fitted in line with the coaxial cable feed If the hum persists disconnect all the source components one at a time from the back of the preamplifier until you identify the problem If you are using the subwoofer s line level inputs and there is a excessive amount of noise or hum present using the speaker level inputs may yield a lower background noise level Ground loop isolators are available for audio lines and video Once you have identified which components are causing a problem you can fit the isolators be tween the component and the preampli fier The subwoofer won t turn off The subwoofer should turn itself off after approximately fifteen minutes with no audio signal present If not check there is no background hum The subwoofer may sense hum as a small signal and stay on See the above hints to eliminate the hum The subwoofer won t turn on The subwoofer s volume control may be turned down or no signal is received from your preamplifier Check the input connections Check the mode switch or menu on sur round systems to be certain that a bass signal is being sent to the subwoofer Audible snap from outlet When the subwoofer is initially plugged into the wall there is an
28. strip Amplifier P di AC outlets on the same circuit breaker N A Subwoofer e This diagram shows all the low power components sharing a power strip which is connected to the same outlet used by the amplifier e The subwoofer is connected to an outlet on the same circuit breaker provided that the total system current draw does not exceed the breaker current rating e This arrangement will reduce the possibility of an audible hum in your system caused by a ground loop Sunfire User s Manual e Whenever possible keep the power cords away from the signal cables or speaker wires to prevent any hum or interference being heard in the speakers e Choose reliable high quality inter connect cables also called patch cords or RCA cables They should be fully shielded and as short as possible for the job The longest cable in your system will likely be to the subwoofer so choose a good quality brand e Some patch cords can be a very tight fit and there is usually a preferred method of getting them off Some have to be removed with a twisting action Be gentle or you may damage the jacks of the sub woofer or your other components opeaker Level connections e The subwoofer s speaker level inputs can accept speaker wires with banana dual banana bare wire or spade terminals If you have banana type connectors on your speaker wire make sure that you tighten the binding posts before inserting e Make
29. sure that the negative speaker wires never touch the posi tive wires as this will short out and possibly damage your amplifier or receiver The subwoofer s two negative posts A N are joined internally common grounded Your amplifier must also be internally common grounded or you cannot use this connection Contact the manufacturer of your amplifier to make sure its outputs are common grounded 9 Location Your Sunfire Subwoofer is designed to be placed in a corner and this will produce optimum performance 1 is very good positioning 2 is also excellent but may shake the back wall too much and cause things on or along the wall to rattle too much If this occurs use the 3 position 3 Move the woofer approximately three feet away from the right wall and place it along the back wall as shown This will substantially reduce the rattling of the back wall and will still pressurize the room with lots of bass Experiment with at least two corners and decide which is the best or you can try the following procedure 1 Start by placing the subwoofer right on the seat of your favorite couch or easy chair Take care to position it so itis not likely to fall off This method may seem a bit odd but it is based on principles of acoustic physics 2 If you are using the subwoofer as part of a Home Theater system you can either run a calibration test noise signal through the subwoofer or simply plug the an
30. ther words the connections from your preamplifier must go to the subwoofer s line level inputs in stead of the line level high pass outputs If they are connected to the outputs by mistake the bass will be weak but the subwoofer will still function If your preamplifier has a single subwoofer LFE output jack make sure it connects to the subwoofer s Left Mono input If the bass is still not enough after checking all the remaining points use a Y cable to connect the preamplifier s single subwoofer LFE output to the subwoofer s right and left inputs Make certain the subwoofer is in a cor ner location firing at 45 degrees into the walls formed by the corner This is not absolutely essential but will maximize the bass output and give the smoothest possible response If you place the unit so one of the drivers is firing into one of the walls leave three inches of clear ance between the driver and the wall Home Theater preamplifiers usually have a way of adjusting the level of the subwoofer LFE output either using a remote control or with a small volume knob on the back panel Make sure that this is adjusted correctly Check that your preamplifier or receiver s sub output is turned on Some systems only have a sub output signal when the front speakers are set to small If the preamplifier s subwoofer LFE output has an adjustable crossover fre quency make sure that the subwoofer s own crossover point is set t
31. upply cords should be routed so that they are not likely to be walked upon or pinched by items placed upon or against them paying particular attention to cords at plugs con venience receptacles and the point where they exit the Component 10 Cleaning The Component should be cleaned only as recommended in this manual 11 Non use Periods The power cord of the Component should be unplugged from the outlet when unused for a long period of time 12 Object and Liquid Entry Care should be taken so that objects do not fall into and liquids are not spilled into the in side of the Component Do not expose the Component to dripping or splashing from liquids Do not place objects filled with liquids on top of or near the Component For example no vases glasses of wine or cans of pop 13 Damage Requiring Service The Component should be serviced only by qualified service personnel when A The power supply cord or the plug has been damaged or B Objects have fallen or liquid has spilled into the Component or C The Component has been exposed to rain or D The Component does not appear to oper ate normally or exhibits a marked change in performance or E The Component has been dropped or its cabinet damaged 14 Servicing The user should not at tempt to service the Component beyond those means described in this operating manual All other servicing should be referred to qualified service perso
Download Pdf Manuals
Related Search