True Subwoofer
Contents
1. Using the speaker level inputs If you are using a receiver which does not have a sub woofer output or line level outputs pre outs you can connect its speaker outputs ME 7 a to the subwoofer s speaker Oven level inputs The front speakers can still be connected to your rss receiver The subwoofer s internal amplifier supplies the power to reproduce the low frequency range It receives a sample of the signal going to your front speakers An insignificant frac tion of your receiver s power is transferred to the subwoofer USE BALANCED INPUT POWER ONI STANDBY INPUTS OFF LS There is no EE need to use the RECEIVER En speaker level inputs if you are MAIN using a separate OUTPUTS amplifier and pre amplifier Such systems are best connected using the line level inputs as shown in the previous diagrams If you are using the line oe 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 TO FRONT SPEAKERS Your receiver MUST have common grounded outputs or it will be dam aged if connected to the subwoof er s speaker level inputs Sunfir User s Manual 1 T 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 pre2. Make sure OUTPUTS this is correctly adjusted and that the Sunfire Subwoofer s crossover frequency is set to 100 Hz This is by no means an iron clad rule rather it is a good starting point See the crossover fre quency control details on page 6 and adjustments on page 18 You can set the subwoofer s Vol ume control to 0 dB and then use the preamplifiers subwoofer level control for normal and routine adjustments 14 x Sunfir 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 CROSSOVER FREQUENCY The subwoofer will play the low frequency range and your front fi me mue speakers will play the full range D ce Z Although bass is commonly dis 7 O tributed evenly between left and k right channels L R bass movie soundtracks often contain dif ferential L R bass The opening scene in Top Gun for example has loads of L R bass infor mation If this is not preserved the bass in these scenes sounds anemic 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
3. High Cut Filter 35 Hz 100 Hz adjustable witha By pass position Frequency Response 18 Hz 100 Hz Power Line Voltage US model 120 VAC 50 60 Hz International model 230 VAC 50 60 Hz Dimensions 11 x 11 x 11 Weight 48 Ibs Finish High gloss dark rosewood finish Line Power Consumption 600 watts average at maximum continu ous output 8 watts at idle 2 700 watts peak time limited basis Output Levels Greater than 110 dB peak SPL includes room gain from 18 Hz to 80 Hz Mea surement is one meter anechoic A typical Sunfire subwoofer can be expected to best its specified minimum peak SPL by several decibels Total Harmonic Distortion Typically less than 1 10 of the funda mental between 18 to 80 Hz Input Sensitivity full output 250 mVrms from left input with volume control at 0 dB 60 mVrms volume con trol fully clockwise gt 0 75 Vrms from right input with volume control at 0 dB 200 mVrms volume control fully clockwise gt Input Impedance 30 kQ for Line Level inputs 56 kQ for Hi Level inputs 40 KQ for XLR input each leg balanced to ground XLR Input Pin1 Ground 1 Pin2 Positive 3 Pin3 Negative 24 Driver 10 inch 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 50 dB from left input jack to spe
4. and hold down for 12 Aras OUR Sunfire Corporation BUILT UNDER ONE OR 7 x FOLLOWING PATENTS Snohomish Washington 5748753 5937074 641 13 14 15 s L Z o USE LEFT ww R MORE OF THE 4484150 8231 6130954 several seconds to enter the Manual EQ mode See page 12 for more details on this and the following EQ controls Microphone Input This is where you plug in the supplied linear measurement microphone when you want to use the Auto EQ mode LED display These LEDs are used during the Auto EQ and Manual EQ procedures Equalizer Authority This control s primary purpose is to adjust the EQ Authority During normal listening you can adjust the overall EQ from none cew 0 to fully equalized cw 100 For example if your first band has a 6 dB boost setting this control to 50 would make it boost only 3 dB This control is also used during the Manual EQ mode to adjust each of the four internal EQ bands and allow you to add color to the sound as desired 8 x Sunfire User s Manual 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 prolonged exposure to direct sunlight and other direct source
5. impact soso A ead amu Pv MDQ An alternative connection method without using Y cables is shown on the next page E a 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 Sunfir User s Manual crrH 5 Using the line level high pass outputs If you are using a preamplifier which does not have a sub LFE output you can send its left and right front output into the subwoofer s Line Level inputs i SG and then connect the subwoof n et er s High Pass outputs to the inputs of your amplifier MINIMUM The subwoofer will play e ie the low freguencies and your T e amplifier and front speakers will play the frequency range a above the subwoofer s fixed high pass crossover point Snohomi The signals coming out of the subwoof er 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 network AMPLIFIER and controls This is an excellent method if your speakers are small satellites or mini monitors and or your power amplifier is of limited power such as a tube amp TO FRONT SPEAKERS 16 x Sunfir User s Manual
6. loud noise during this process as it may affect the accuracy and or make it take longer Sunfir User s Manual 9 The sub automatically calculates the best equalization based on the mea sured frequency response at your listen ing position This will be saved before returning to the normal listening mode 10 In normal listening you can adjust the overall effect of the saved EQ settings with the Equalizer Authority control Normally you would turn it to 100 for full equalization You can turn it to 0 to judge the effect of no equalization or vary it to suit your taste 11 Repeat the Auto EQ procedure if you change the location of the subwoofer or if you rearrange your furniture Manual EQ Mode This mode allows you to manually adjust the room equalization to suit your taste Some rooms may sound flat or life less without a touch of color to the sound FULLY AUTOMATIC EQUALIZER EQUALIZER AUTHORITY 6 START MICROPHONE PRESS TO START PLACE MIC AT PREFERRED AUTO EQ SEQUENCER LISTENING POSITION THEN FIRST SET EQUALIZER PRESS START EQ SETTINGS AUTHORITY TO 100 ARE SAVED WHEN FINISHED The subwoofer has four EQ bands each represented by two yellow LEDs Each band is fixed in frequency and bandwidth but each can be adjusted in volume level using the Equalizer Author ity control during the Manual equalization mode This is similar to having sliders on a 4 band graphic eq
7. tion 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 corner 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 clearance 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 frequency make sure that the Sunfire subwoofer s own crossover point is set higher 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
8. Weight high operating efficiency that is more 53 Ibs acoustic output for each watt of input Finish Internal System Gain High gloss dark rosewood finish 50 dB from left input jack to speaker with volume control at 0 dB 62 dB with Line Power Consumption control fully clockwise gt 800 watts average at maximum continu 40 dB from right input jack to speaker ous output 8 watts at idle with volume control at 0 dB 52 dB with 2 700 watts peak time limited basis control fully clockwise gt Output Levels s The Sunfire True Subwoofer utilizes differential gain on the left and right Greater than 116 dB peak SPL includes inputs to retain both L R and L R room gain from 16 Hz to 100 Hz Mea information surement is one meter anechoic A typical Sunfire subwoofer can be 12 VDC Trigger Input expected to best its specified minimum peak SPL by several decibels Input voltage range 5 18 VDC Impedance approx 600 0 Total Harmonic Distortion 20 mA 12 V Removable terminal block and one 1 8 Typically less than 1 10 of the funda Mono minijack fp po livo mental between 18 to 80 Hz Input Sensitivity for full output 250 mVrms from left input with volume control at 0 dB 60 mVrms volume con trol fully clockwise gt Sunfire User s Manual NN x 1 9 Specifications Standard Edition Amplifier Output 2 700 watts rms 3 30 impedance
9. aker with volume control at 0 dB 62 dB with control fully clockwise gt t 40 dB from right input jack to speaker with volume control at 0 dB 52 dB with control fully clockwise gt t ze The Sunfire True Subwoofer utilizes differential gain on the left and right inputs to retain both L R and L R information 12 VDC Trigger Input Input voltage range 5 18 VDC Impedance approx 600 0 20 mA A 12 V Removable terminal block and one 1 8 Mono minijack tip positive 2004 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 913 103 00 Rev B 20 x Sunfire User s Manual Troubleshooting The Sunfire Subwoofer is expertly designed and built to provide years of trouble free performance Most problems 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 Check that your preamplifier s outputs are connected to the subwoofer s line level inputs and not to 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 func
10. 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 something with really deep bass to confirm that your subwoofer is working Control settings Use this drawing to record some of your favorite settings Oo MAXIMUM MINIMUM BD 100 Hz NORMAL BYPASS 65 Hz a N AORN AORN 30 Hz NORMAL ve ka rase N 0 dB _ MAXIMUM eo VOLUME MINIMUM BD 100 Hz NORMAL te Fe BYPASS N ST ST 30 Hz NORMAL 90 te DE No 1 8 x Sunfire User s Manual Specifications Signature Edition Am plifier Output 0 75 Vrms from right input with volume control at 0 dB 200 mVrms volume High Cut Filter Input Impedance 30 Hz 100 Hz adjustable with a 30 kQ for Line Level inputs Ey base Postion 56 kQ for Hi Level inputs Frequency Response 40 kQ for XLR input each leg balanced 16 Hz 100 Hz rene XLR Input Power Line Voltage US mode ie 120 VAC 50 60 Hz 3 Pin3 Negative D International model 230 VAC 50 60 Hz Driver 12 inch Dimensions Extra large magnet and long throw 13 x 13 x 13 mechanical design yield very high back emf The result is extraordinarily
11. e 9 Power Cord Protection Power supply 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 shou
12. e in useful for insurance purposes Please take a moment to fill out and mail the Sunfire Customer Response card Also read the serial number located on the control panel and record it here Serial Number Purchased from Features 2 700 watt high efficiency amplifier High gloss dark rosewood finish Automatic Room Equalization mode Measurement Microphone included Very low distortion Long throw premium quality drivers Stunning output from a small cube Automatic signal sensing turn on and standby mode 12 VDC trigger input for remote turn on Balanced XLR input Line level unbalanced inputs Speaker level binding post inputs Line level high pass outputs Continuously variable phase control Continuously variable crossover fre quency adjustment 35 to 100 Hz Continuously variable volume level control Soft clipping circuit allows graceful overload and prevents speaker damage due to clipping 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 To keep the large rubber surrounds soft and supple for 20 years or more treat them with MINK OIL available at most shoe repair stores Unplug the power cord and rub a generous amount into the surrounds with a soft cloth about once a year more often if you live in a dry climate If your Sunfire Subwoofer needs ser vicing please read the Troubleshooting
13. en be more than one cause Try to have all of your equipment on the same electrical outlet or circuit see page 10 for more details If your subwoofer is a fair distance away from your other eguipment you may use a 15 amp extension cord as long as it has a ground connection A 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 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 subwo
14. er and your preamplifier or receiver Preamplifier Power strip Amplifier AC outlets on the same circuit breaker R Subwoofer This diagram shows all the low power components sharing a power strip which is connected to the same outlet used by the amplifier 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 This arrangement will reduce the possibility of an audible hum in your system caused by a ground loop 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 Choose reliable high guality 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 guality brand 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 Speaker Level connections A 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 inser
15. er heat sink and also as a conduit to remove internal heat to the 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 subwoofer 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 subwoofer further than two feet away from your TV VCR tape deck or com puter 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 _ ____ 9 Connections Please consider the following when set ting up your new system Before making or changing any connections ALWAYS make sure that the subwoofer and your other components are turned OFF Also turn down the volume control of the subwoof
16. ering is OK Place the microphone in the listening position on the couch for example pointing in the direction you ll normally be facing while listening to your system Only use the microphone supplied by Sunfire 1 U 1 1 1 1 I 1 I I I 1 I I 1 1 1 1 1 1 1 1 1 1 V 1 v v v v v Li v v V v v m amp Je NA 4 Plug the microphone into the subwoof er s microphone jack m Sunfire m Mas Set these controls e Volume to 0 dB e Crossover to Bypass e Phase to Normal e Equalizer Authority to Normal Turn on the subwoofer AC power switch and press the Start button to go from standby to play mode The yellow LEDs should light up Press Start again to start the calibration The subwoofer will generate a test tone sweep slowly increasing up the fre quency scale the microphone will take measurements of the sound arriving at your listening position The LEDs will flash randomly for a while then the pairs will gradually glow constantly as each band is measured This sequence will repeat twice until the measurements are complete The LEDs will all blink once and stay on and the test tones will stop If you find that the first test tone plays louder and louder and never leaves the first band then either the microphone is too far away from the subwoofer or it is not plugged in correctly The procedure may take several minutes Do not make any
17. ferred method By listening and making the adjustments to suit your taste e 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 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
18. ise signal through the subwoofer or simply plug the analog 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 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 will strongly affect your subwoof er s performance Moving the subwoofer from one location to another can have a major effect on the bass response The Auto EQ mode will let you adjust for the room effects but you should find the best location first Remember to keep the subwoofer AN 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 subwoofers the sound output will double an increase of 6 dB Locate the subwoofers with one in each corner and experiment
19. lation Connections Location Room Equalization Procedure System Configurations Adjusting the Controls Specifications Signature Edition Specifications Standard Edition 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 x 3 Introduction Dear Friend Thank you for purchasing my Sunfire True Subwoofer EQ hope you enjoy it and the music it makes as much as have enjoyed creating it for you The big breakthrough features of the subwoofer are its uncanny track ing downconverter its long throw high back electromotive force driver and its fully automatic room equalizer 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 NE A 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 com
20. ld be referred to qualified service personnel 2 x Sunfire User s Manual 15 To Prevent Electric Shock do not This apparatus does not exceed the Class use this polarized plug with an extension A Class B whichever is applicable limits cord receptacle or other outlet unless the for radio noise emissions from digital ap blades can be fully inserted to prevent paratus as set out in the radio interference blade exposure regulations of the Canadian Department of Pour preevenir les chocs lectriques ne Communications pas utiliser cette fiche polarise avec un ATTENTION Le pr sent appareil numeri prolongateur un prise de courant ou une que n met pas de bruits radio lectriques autre sortie de courant sauf si les lames d passant las limites applicables aux ap peuvent tre ins r es fond sans laisser pareils num riques de class A de class B aucune parie d couvert selon le cas prescrites dans le r glement 16 Grounding or Polarization Precau sur le brouillage radio lectrique dict tions should be taken so that the ground par les ministere des communications du ing or polarization means of the Com Canada ponent is not defeated VERY HIGH SOUND PRESSURE LEVELS YOU MUST TAKE EVERY PRECAUTION TO PROTECT YOUR HEARING FROM PERMANENT DAMAGE Contents WARNING THIS SUBWOOFER IS CAPABLE OF PRODUCING i Safety Instructions Introduction Features Unpacking and Care Overview Control Panel Features Instal
21. level output of a Home Theater preamplifier or other source Balanced connections offer superior noise cancellation over unbal anced connections so if your preamp has an XLR subwoofer output we recommend using it 8 A A 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 Your amplifier or receiver MUST have common grounded outputs or it will be damaged if connected to the subwoofer s speaker level inputs Line Fuse The subwoofer is supplied with a con servative slow blow type fuse to protect the electronics Always unplug the power cord before inspecting or changing the fuse Never use a fuse with a larg er current rating than shown on the markings next to the fuseholder 10 IEC Linecord socket A The subwoofer comes with a detach able linecord which connects here US 120 VAC MODEL Connect the linecord to the subwoofer before connecting the other end to an 120 Volt 60 Hz AC o
22. m turn adjusting the control in small incre this down first before turning on your ments as you listen for the most bass subwoofer This will prevent any loud at your listening position As a final trim surprises readjust the Crossover Frequency and Volume controls after the Phase has 2 Crossover Frequency been set This controls the high frequency cutoff point With the control set to the 100 4 Trigger Inputs Hz mark the subwoofer will reproduce These two inputs can be used to auto frequencies up to 100 Hz If the control matically turn on the subwoofer To do is set fully clockwise the crossover is this connect 12 VDC to either of these bypassed and the subwoofer will re terminals Some Home Theater pre produce a wide frequency range With amplifiers such as the Sunfire Theater the control fully counter clockwise the Grand Il and Ill have matching 12 VDC subwoofer reproduces a narrow range Trigger outputs When they are turned up to 30 Hz on the subwoofer will turn on Rotate the control until the bass sounds natural If the mid bass sounds natural Outputs but you want more low bass turn this Line level high pass output signals control down a little then turn the are available at these jacks These Volume control up by about the same outputs are active whenever a signal amount This increases the low bass is hooked up to the line level inputs output while leaving the mid bass of the subwoofer This crossover is a output the sa
23. me 6 x Sunfire User s Manual Sunfir User s Manual 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 soeakers 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 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 Hz see page 16 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 14 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 15 In this way you can send the preamplifiers output signal to your main amplifier and to the subwoofer at the same time Balanced XLR Input Use this balanced input to connect to the balanced line
24. nfire 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 True Subwoofer EQ 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 purchase 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
25. 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 freguency 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 correcily 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 Sunfir User s Manual Ss CV 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 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 ev
26. ofer 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 automatically The subwoofer should turn on when an audio signal is applied or 12 VDC is ap plied to the Trigger inputs or if the Start button is pressed If it does not turn on check the following 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 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 first enter the room so they are making no connection to your preampli fier TV or any other component If the 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 Use the 12V Trigger for the most reliable on off operation 22 x Sunfire User s Manual Limited Warranty Su
27. ponent should be situated so that its location or 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 7 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 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 applianc
28. replacement at our op tion of any defective product and shall not in any event include property or any other incidental or consequential dam ages which may result from the failure 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 or 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 mus
29. s 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 subwoofer so the drivers face the floor and ceiling 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 arrange ment will impart substantial house and floor shaking motion e Four extra heavy shock absorbing rubber mounting feet have been included If your subwoofer tends to wander about slightly while in use place these feet just inside the existing feet positions These shock absorbing mounts will let the subwoofer rock freely thereby absorbing low frequency rocking energy allowing it to adhere solidly to the floor e To move the subwoofer along the floor rotate it onto one edge onto a plastic sheet or bag and it will slide along easier 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 at least two inches away from any walls The metal control plate serves as the amplifi
30. section on page 21 If a problem still persists contact your nearest authorized Sunfire Dealer 4 gt MN Sunfire User s Manual Overview Your Sunfire True Subwoofer EQ is designed to give you the best possible low frequency sound quality for your Home Theater experience It incorporates a tremendously powerful built in amplifier and a pair of drivers to produce tight floor rumbling denture rattling bass that you can feel as well as hear The subwoofer is available in two ver sions and this manual covers both Signature Edition is a 13 inch cube with an output greater than 116 dB peak SPL 16 Hz to 100 Hz Standard Edition is an 11 inch cube with an output greater than 110 dB peak SPL 18 Hz to 100 Hz The subwoofer has an automatic equalization system which will tailor the subwoofer output to compensate for any room effects It also has a manual equal ization mode The subwoofer has an adjustable high cut filter and a choice of speaker level or line level inputs for easy incorporation into existing systems or as part of a subwoofer satellite soeaker 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 sub
31. t 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 Sunfir User s Manual SS D8 pera Sunfire True Subwoofer N Ey Sunfire Corporation P O Box 1589 Snohomish WA 98291 n Manual part number 913 103 00 Rev B
32. thecarversite com This manual is either an original scan from tech s who worked at Carver corp donated by forum members or both These manuals are NOT intended for re sale If you purchased a Carver Manuals disc on ebay or another auction site and it has this material on it you were ripped off Please report any resale of this material to us at thecarversite com thecarversite com peira Sunfire True Subwoofer Signature and Standard Edition User s Manual RISK OF ELECTRIC SHOCK DO NOT OPEN A meme CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER OR BACK NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO GUALIFIED SERVICE PERSONNEL Satety 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 operating 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 Compo nent should not be used near water for example near a bathtub washbowl kitchen sink laundry tub in a wet basement or near a swimming pool etc This Component is intended for use in Moderate climates Do not use in Tropical climates 6 Ventilation The Com
33. ting Make 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 are joined internally com mon grounded Your amplifier must also be internally common grounded or you cannot use this connection Contact the manufac turer of your amplifier to make sure its outputs are common grounded 1 0 2342 Sunfire User s Manual Location g ni Your subwoofer is designed to be placed in a corner and this will produce optimum performance S EEIEEEE 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 subwoofer 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 it is 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 no
34. ualizer except the settings for each band are stored digitally The subwoofer saves the setting of the Equalizer Authority control for each band so adjusting it for one band does not alter the adjustment for the other bands First you should follow the Automatic EQ procedure so the subwoofer will adjust for the room effects Then follow this manual procedure if you think the equalization might still need a tweak Set these controls e Volume to 0 dB e Crossover to Bypass e Phase to Normal e Equalizer Authority to 50 Turn on the subwoofer AC power switch Press and hold down the Start button for several seconds until the first pair of yellow LEDs light up A low frequency test tone will sound to help you adjust the lowest band Adjust the volume by turning the Equal izer Authority control or press Start to skip and move on to the next band You will have to sit back in your listening position each time to listen for the effect or seek the help of a loved one or kind friend to turn the control while you listen Press the Start button to move on to the next band and then adjust the Equalizer Authority control as needed When you reach the last band the next press will bring up the first band again When all bands have been equalized to your satisfaction press and hold down the Start button for several seconds until all the yellow LEDS come on and the test tone turns off The Equalizer Authorit
35. uld normally be 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 subwoofer to put more sound into the room to satiate the power hungry user but without distortion or damage to the subwoofer Thus for ex plosive scenes in movies this produces extremely high sound pressure levels SPL in your room without the drivers banging against the mechanical stops For more details of the subwoofer de sign please call us or view our website www sunfire com Sunfire User s Manual 5 Control Panel Features ULLY AUTOMATIC EQUALIZER EQUALIZER AUTHORITY 14 Z N oa IZ want oooooololo z si Re an ie Bes OR 5 j m vse i 11 Sunfi TE OUTPUTS Won m 5 T 8 1 Volume 3 Phase Control This control lets you match the output This control changes the relative phase level of the subwoofer to the level of the subwoofer with respect to your of your satellite main speakers The other speakers Use this control to help subwoofer output will increase as this blend the subwoofer with the rest of control is rotated clockwise When you your system This is accomplished by have just installed your syste
36. utlet The outlet must have a circuit rating of 8 amps or more a typical home circuit is rated at 15 amps Never plug the US 120 VAC Model subwoofer directly into 220 240 Volts AC as this will cause catastrophic circuit failure 4 Control Panel Features continued 15 14 1200000010 FULLY AUTOMATIC EQUALIZER 6 Lt LE 1 1 ts authority A 13 12 ART RESS TO START AUTO EQ SEQUENCER 11 INPUTS 100 50 0 z MICROPHONE IGHT ON GO TRIGGER INPUT 12 VDC TO TURN e Sunfire LINE OUTPUTS HIGH PASS EURO 230 VAC MODEL Connect the linecord to the subwoofer before connecting the other end to a 230 Volt 50 60 Hz AC outlet The outlet must have a circuit rating of 8 amps or more A 11 Power Switch The power switch is a CE requirement for international shipments Leave it switched on at all times for normal operation Never plug the Euro 230 VAC model subwoofer directly into 120 130 Volts AC After a period of inactivity i e with no input signal the subwoofer will automatically turn itself to Standby mode where it is effectively off It can however turn back on automatically when an input signal is applied if a 12 VDC trigger voltage is applied to the Trigger inputs or if the Start button is pressed Start button Press this once to enter the Auto EQ mode if the sub is out of Standby mode Press
37. with the location and phase control to achieve the best bass response Always drive each subwoofer through the Left Mon input even though you are driving one subwoofer with a right chan nel 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 Sunfir User s Manual 1 1 Room Equalization Procedure Subwoofer performance is greatly af fected by the room in which it is situated and the positioning within the room The room effects will boost and cut the output levels reaching your listening position This gives a Room EQ effect which can often be far from wonderful The Sunfire True Sub EQ can automati cally adjust for the effects of Room EQ It measures the actual frequency response using the supplied measurement micro phone Then it automatically compen sates for peaks or dips and smooths out the response The following procedure will help you start the automatic equalization Automatic EQ Mode il 12 Install the True Sub EQ in the best loca tion you can find See previous page The calibration must be done while the listening room is quiet Please turn off any noisy machinery including heating or cooling systems during this process Have the kids play in the backyard and give the dog a treat to have him stop barking Asmall amount of noise such as quiet talking or whisp
38. woofer 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 The Amplifier The large movement range of the driv ers creates greater air pressure inside the box than a conventional subwoofer Therefore the drive amplifier must be much more powerful than an ordinary subwoofer amplifier In fact it has to be so powerful it is almost hard to believe The power amplifier within your Sunfire Subwoofer is capable of delivering over 2 700 watts into a 3 3 ohm resistor the driver voice coil resistance When the same full output is applied to the driver however the enormous back electro motive force generated as a conse quence of its large motion and giant mag net causes the current flow to be much less than if it were a 3 3 ohm resistor It is this singular property of the driver that allows the subwoofer to be approximately ten times more efficient than a subwoofer this size wo
39. y settings will be saved for each band and the subwoofer will return to its normal listening mode Use the Equalizer Authority to adjust the effects level of your equalization Resetting the EQ Turn off the subwoofer using the AC power switch Hold down the Start button and turn on the AC power switch Keep the Start button held down for 10 seconds while the yellow LEDs flash When the LEDS go out the EQ is reset to the flat factory setting Sunfire User s Manual J 3 system 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 RC for Low Frequency Effects it can be PE s connected to the subwoofer s Left z Mono input as shown This is the epa simplest and recommended con l ajae nection A receiver with a sub LFE output can be connected in the same way CROSSOVER FREQUENCY SA MDL MDQ si The subwoofer will play the low freguency range and the other speakers will play the freguency range delivered to them by your amplifier If you have a Home Theater preamplifier it may have an inde R pendent subwoofer vol SUB LFE MAIN OU ume control
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