SV Sound SB12-Plus Speaker User Manual
Contents
1. 65 0 60 0 10 0 100 0 Frequency Hz The graph above illustrates the results of the wider Q setting Notice how the cut effect is wider This is now a satisfactory result SV Sound Chapter 9 Specifications Model Name B12 Plus Configuration Small Box front firing 12 woofer Design Sealed Dimensions 14 High x 14 Wide x 15 Deep HxWxD 36 cm H x 36 cm W x 38 cm D Weight 40 Ibs 18 kg 110 120V 60hz US Canada South America Voltage fixed 220 240V 50hz Europe Russia other 12 SVS designed built Plus woofer with high excursion synthetic surround aluminum cone with cast basket high temp US voice coil and integral cooling vents Driver Frequency Response 22Hz 150Hz 3dB typical in room response quasi anechoic 3 5Hz deeper with 20hz tuning Inputs Outputs RCA XLR low level and speaker level Gain continuously variable phase crossover Controls defeatable auto on PEQ room compensa tion and high pass filter switches Power Handling 425 watt RMS High pass 12dB octave 80Hz Crossover Variable low pass 12dB octave 40 120Hz 75 to 1 Medium Density Fiber board MDF Enclosure Material with internal CNC d bracing and wood gloss or charcoal black finishes SV Sound Chapter 10 Terms and Conditions Terms and Conditions Details are available on request please contact your Dealer for more Note that these terms and2. SV Sound OWNERS _ Guipe SVS The Sound Authority SVS SB12 Plus Small Box Plus 12 Woofer Contents e Chapter 2 Safety instructions e Chapter 3 SVS Welcome e Chapter 4 About your SVS subwoofer e Chapter 5 General subwoofer features e Chapter 6 Setup integration and calibration e Chapter 7 Room compensation control e Chapter 8 Parametric equalizer PEQ e Chapter 9 Subwoofer specifications e Chapter 10 Terms and Conditions Last update 27 April 2008 Chapter 2 1 SV Sound IMPORTANT SAFETY INSTRUCTIONS 1 Read these instructions 2 Keep these instructions 3 Heed all warnings 4 Follow all instructions 5 Do not use this apparatus near water 6 Clean only with dry cloth 7 Do not block any ventilation openings Install in accordance with the manufacturer s instructions 8 Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat 9 Do not defeat the safety purpose of any polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two prongs and a third grounding point The wide blade or the third prong are provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particularly at plugs
3. meter ready This tool is absolutely essential to proper home audio setup It s akin to a tire pressure gauge for your car Set the meter to Slow and C weighting and turn the dial to 70dB If using Avia for calibration tones set your meter to 80dB instead Getting ready to start now Make sure your receiver or proc essor s master volume is set to 00 dB or some other easy to remember reference level Then ensure your sub s volume gain control is set no more than 1 4 to 1 3rd up for now leaving plenty of adjust ment up It s also critical to check the subwoofer output level control of your AVR before you begin the test tones Set the AVR s subwoofer output to about 1 3rd up too Turn off any sound field processing schemes Mid night Mode DRC dynamic range control Movie Mode etc If it is an option in your system route your LFE to the subwoofer only not mains sub Now play your AVR s internal test noise tones so you have something to measure with your SPL meter When the tones start alternating from speaker to speaker watch your sound meter now set each speaker s volume to about 75 dB by using the receiver s dedicated channel level controls leaving your AVR s master volume the same We recommend you turn down the AVR s subwoofer channel output level before you significantly lower your subwoofer s gain control This helps keep distortion se
4. convenience receptacles and the point where they exit from the appara tus 11 Only use attachments accessories specified by the manufacturer Use only with the cart stand tripod bracket or table specified by the manufac turer or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over Chapter 2 2 SV Sound 13 Unplug this apparatus during lightning storms or when unused for long periods of time 14 Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped 15 WARNING To reduce the risk of fire or electric shock this apparatus should not be exposed to rain or moisture and objects filled with liq uids such as vases should not be placed on this apparatus 16 To completely disconnect this equipment from the mains disconnect the power supply cord plug from the receptacle 17 The mains plug of the power supply cord shall remain readily operable The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of un insulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to consti
5. FR using a manual method you will need an SPL meter a basic working knowledge of Microsoft Excel or other spread sheet program and a means to generate sine wave test tones There are several sources of sine waves and or tone generators on the internet A popular tone generator is the NCH Tone Generator http www nch com au tonegen index html which is freeware for personal use but may also be purchased for a nominal fee Place the SPL meter on a tripod and set the controls to C weighted Slow and the 70 dB scale you may need to alter the dB scale during the meas urement process Place the meter at head level at the primary listening position with the meter pointed toward the front stage and pointed toward the ceiling at a 45 degree angle Chapter 8 3 SV Sound To set the overall test level play a 25 Hz frequency and adjust the sub woofer gain option 1 below or the processor master volume option 2 below until the SPL meter reads about 75 dB at the listening position Run each tone only long enough to get a stable reading from the meter about 5 6 seconds and then give the subwoofer about 10 seconds to cool off between test frequencies Option 1 Measure The FR of the Subwoofer Only To measure the FR of the subwoofer only connect your sound card out put directly to a line level input on the subwoofer Use the Excel spread sheet named Subwoofer Frequency Response which will plot the fre quency response of the subwoofer
6. REQ og h Ax A Livi NI K D One D NS A Ke YY A amp Zh 20Hz an R MAX Z A PARAMETRIC EQ The Frequency control labeled Freq affects the target the frequency where the PEQ cut will take effect and has a control range of 20 80 Hz The Bandwidth control labeled Q affects the width of the PEQ cut The HI setting is the narrowest bandwidth and the LO setting is the widest bandwidth In most cases it is best to start with a Hi Q setting narrow band width Below is a frequency response graph of the SVS SB12 Plus as measured under quasi anechoic conditions This set of curves illustrates how the PEQ function works and what type of cut effect you can expect from various Q settings Green Line Native frequency response of the subwoofer Purple Line Frequency 50 Hz Q HI LEVEL MAX Yellow Line Frequency 50 Hz Q LOW LEVEL MAX Chapter 8 2 SV Sound Q Control Effects aB SPL TrueRTA Measuring The In Room Frequency Response In order to use the PEQ effectively you must measure the in room FR of the subwoofer at the lis tening positions This can be done manually using test tones and an spreadsheet or it can be accomplished using software such as TrueRTA or Room EQ Wizard SVS does not provide technical support on the set up and use of any software but it can make measuring the subwoofer FR easier and faster than manual methods To measure the subwoofer
7. ce indicates a subwoofer response outdoors but line in blue indicates the same subwoofer s response in a mid sized room Room gain can create excessive deep bass which can sound exaggerated simply due to interaction with your room SPL vs Freq Project Room Compensation Jul 18 2006 Ele norco eee lori LINEARX Use the below chart to help tailor your SVS sub to your room s size Vary the room size knob up or down one size should you determine that sound s best for your music and movies Bypass mode is deepest of all and most suitable for the largest rooms Approximate Room Size Room Compensation Setting gt 2400ft 68m LARGE lt 1400ft 40m SMALL Chapter 8 1 SV Sound Advanced Features Parametric Equalizer PEQ Important Note Until you are ready to use the PEQ feature set it should be disabled by setting all three controls to the full counter clock wise position Background Information Direct and reflected bass waves in the listening room will create standing waves and associated peaks and nulls in the sub woofer frequency response FR The PEQ allows you to reduce the severity of a peak in the subwoofer frequency response thus obtaining a more accu rate sound Control Explanation The PEQ has three controls Frequency Bandwidth and Level An image of the PEQ control is provided below your subwoofer controls may vary F
8. conditions do not affect your statutory rights Shipping When you receive your new subwoofer please check to en sure there is no damage If after unpacking you discover any damage that may have been caused by transportation on your product we request you contact SVS or if outside the USA your Dealer immediately and if possi ble provide a photo of damage in question to them to ensure the fastest possible correction to the situation Warranty The product has a 3 year warranty against defects in materials and workmanship Upon return the products will be repaired and redeliv ered Naturally this warranty does not cover any product subjected to misuse or accidental damage The bottom line We re proud of these subwoofers and want you to be as happy owning one as we are selling one or more to you E mail your Dealer if you have any warranty question or contact SVS directly if in North America SV Sound SV Sound Intemational LLC 6420 Belmont Ave 4 Liberty Ohio 44420 SVS Fax 703 997 2603 The Sound Authority Phone 703 845 1472 Email custservice svsound com
9. egarding setup Generally this requires your receiver s test tones play back at the same volume from each of your system s speakers Of course this can in clude speakers at left center right left surround and right surround plus the subwoofer itself Some things to check as you get ready to calibrate e Are your speakers set correct to the correct size Your AVR should allow you to your speakers be set to Small or Large Selecting the size accordingly will ensure bass goes to most appropriate speakers and use the subwoofer correctly too Small is nearly always the best configuration with a good sub woofer Chapter 6 3 SV Sound e Also is your subwoofer turned ON We don t mean is your sub woofer amplifier on but rather is your AVR sending a bass sig nal to your sub amp This can only happen if you say Yes or ON in the Subwoofer selection during the setup of your AVR s setup menu e Is your receiver connected to the sub amp Use a well shielded RCA or XLR cable sometimes called a patch cord to connect the sub woofer output of your AVR to either input jack of your subwoofer s dedicated amp Again you ll need to split the bass signal with a Y Cable if you have a pair of subs But you only need feed one of the two inputs it doesn t matter either Right or Left of any SVS Powered Box sub e Is your Radio Shack sound pressure level SPL
10. from 11 2 Hz to 100 8 Hz Input your raw direct read values from your SPL meter into the green band of fre quencies in the Raw SPL Data worksheet and the Frequency Response worksheet will plot the FR of the subwoofer Below is an example of a subwoofer FR Notice the large peak from 35 55 Hz SV Sound LLC Copyright SV Sound 2008 In Room Frequency Response Subwoofer Only Subwoofer Frequency Reponse 10 0 100 0 Frequency Hz To correct a peak such as that above start by setting the Frequency to about 40 Hz the Q to HI and the Level to MAX Re measure and re plot from 30 70 Hz to evaluate the effect Chapter 8 4 SV Sound Option 2 Measure the Combined FR of the Speakers and Subwoofer To measure the combined FR of the front speakers and subwoofer to in clude the digital crossover in your processor connect your sound card output to an analog input on your processor Make sure the analog input is configured to use the digital crossover between the speakers and the sub woofer Use the Excel spreadsheet named Speaker And Subwoofer Com bined Frequency Response which will plot the frequency response from 11 2 Hz to 201 6 Hz Input your raw direct read values from your SPL meter into the green band of frequencies in the Raw SPL Data worksheet and the Frequency Response worksheet will plot the combined FR of the speakers and subwoofer Adjusting The PEQ Identify the largest w
11. idest peak in the response and target it for reduction with the PEQ control When making adjustments to the PEQ control there is no need to re plot the entire FR for interim adjust ments simply re plot the affected section of the curve to verify your PEQ adjustments are having the desired effect When you are done making adjustments you can re plot the entire frequency response to obtain a final curve SV Sound LEC Copyright SV Sound 2008 In Room Frequency Response Subwoofer Only SPL dB g Subwoofer Frequency Reponse 60 0 10 0 100 0 Frequency Hz Chapter 8 5 SV Sound Set the Frequency control to the approximate center frequency of the largest peak Set the Q control to HI narrowest bandwidth and set the Level control to MAX Play the test tones again and re measure and re plot the affected portion of the FR curve and visually evaluate your re sults Simple trial error will then allow you to adjust all three controls to shape the PEQ cut to achieve the desired effect The previous image shows the results of the first PEQ cut attempt The Frequency and Cut effect look correct but the Q is too narrow Adjust the Q about 25 wider and try again SV Sound LLE Copyright SV Sound 2008 In Room Frequency Response Subwoofer Only 100 0 fad g 5 o fal 8 S SPL dB bad Subwoofer Frequency Reponse
12. n about SVS products check out our US website or the ex clusive dealer for your region contact us via phone or e mail should you have questions regarding our products SVS was founded by audio enthusiasts our commitment to service is the only thing that rivals the products we create Our resellers around the world feel the same way The SVS Team Ohio USA September 2008 www svsound com Svs The Sound Authority SV Sound Chapter 4 About your SVS Subwoofer There maybe be other subwoofers that look like them but virtually none work like them SVS subwoofers are decidedly different in how they are designed produced sold and the exceptionally high quality components we use You could have spent much more on other brands and still not come close to the performance our products provide What makes a subwoofer an SVS Quality components sane prices You might be surprised at how inexpensive the components in some not so inexpensive subwoofers are At SVS performance is king not cutting a few dollars from our cost to build Innovative designs rich materials We test all our materials and features in the real world and test size and shape before any design is deemed ready Cabinet construction must ensure rigid and durable products All our subwoofers offer computer controlled panel cutting steel fasteners and recessed components Tap the side of your sub look at the solid construction or remove your grill a
13. nd you ll know what we mean Sealed or vented down firing or front firing cabinets An SVS tradition is to offer a variety of form factors which provide exceptional performance yet also a compact foot print which complements your room style Features and controls Variable phase crossovers which can be defeated and on select models variable tuning equalizers or other advanced controls are built in to allow customers to make their SVS fit their needs Spend time exploring this guide and contact your dealer if you require assistance on any feature World class power Our advanced amplifiers are designed and manufactured with a level of fit and finish and genuine power which is rare at our competitive prices Loaded with comprehensive of easy to use controls and our tremendously efficient Ohio built woofers all our subs achieve exceptional depth tremendous power and flat natural sound Hear everything on your music CD s and DVD s with SVS products Chapter 5 1 SV Sound Powered Subwoofer Common Features SVS subwoofer amps use the most durable and accurate designs possible Get familiar with yours Volume Gain Use gain in conjunction with your Audio Video Re ceiver AVR subwoofer output level control to achieve bass level calibration to your liking Start your setup with the sub s volume gain no more than 1 4 to 1 3 of the way up turned clockwise from the left Crossover Frequency If you use you
14. nt to your SVS to a minimum Note You should not set the AVR s subwoofer level control much lower than the first 1 4th of the receiver s control range Some downward adjustment may be needed to fine tune levels later If your subwoofer s SPL meter reading is still too high then turn down the sub s amp volume a little with each run of the test noise signal as it cycles from speaker to speaker and the subwoofer SV Sound Chapter 6 4 But what s too high Tastes vary and do movie soundtracks but your SVS subwoofer is capable of tremendous levels of low distortion low fre quency bass far more than most subs in this size or price class Take advantage of this especially if you like action movies with lots of 1 channel LFE bass action and give the sub a bit extra gain during calibration Keep in mind too that the human ear is relatively insensitive to low frequencies This coupled with the fact most folks don t watch movies at full theater lev els means raising the bass up a few decibels dBs usually yields a more satisfying movie and music experience What bass levels do we recommend If you watch movies at moderate sound levels a good start is a range of 1dB to 3dB above your other channels as measured with your sound meter This means the test tone will waiver about 78 dB for the subwoofer portion of the calibration run using your receiver test tones Note too that many modern A V receivers allow a
15. o on naturally A few minutes after a movie the Auto On light will turn from Green to Red switching portions of the sub s power supply back off Chapter 5 2 SV Sound Sometimes with very low listening levels your subwoofer might not get enough of a bass signal from your AVR to trip the Auto On circuit Should you ever find this to be the case you may leave this switch to On or turn up the AVR s subwoofer level some be sure to recalibrate channels levels with your sound meter afterwards Crossover Feature Switches If you allow your DD DTS surround sound receiver or processor to manage bass frequencies again highly recommended this switch should be set to Disabled elimi nating the effects of the Crossover Frequency knob and allowing your sub to reproduce just what is fed from the receiver If you use the sub in a two channel stereo only configuration then Enable the crossover and adjust the knob to best blend the sub into the out put of your speakers Power This heavy duty two position switch next to the power cord will completely cut the power to your sub amp Flip this switch to off before you ever move the sub or change inputs or outputs Do not plug this sub into receiver convenience power outlets Allow five minutes of off time before switching back on Fuse User replaceable contact your dealer if you have trouble find ing one The fuse can be accessed by a small do
16. or immediately next to the power cord fitting where you should also find a spare one for your use Read ahead for advanced features including Room Compensa tion and Parametric Equalization PEQ SV Sound Chapter 6 1 Setup calibrating and integration What s to know Setup is easy However there are key steps which must be done carefully and correctly read on Unpacking Take afew moments to carefully unpack everything Save the box and shipping materials just in case you need to return the sub for any reason Location Where you put a sub is important to how it will sound Use a corner if you can and avoid putting your sub where it might adjoin large open areas Studies have shown that the deepest and flattest bass response is typically attained when a subwoofer is placed within a few feet of one of your room s corners leave about 3 in the back for cable clearance with any wall or other surface Whether you put the sub in front or to the rear of your room makes surprisingly little difference Hook up see Fig 1 There are a variety of ways to configure your new sub Usually a simple mono shielded 75 Ohm A V RCA or XLR type cable a is used to take the subwoofer output of your AVR b and feed one low level input of the sub s amp There is no need to split the signal going to the sub c You can feed either one of the two amp inputs it doesn t matter right or left NOTE Take time to review yo
17. r AVR s internal crossover to manage bass frequencies highly recommended the setting of this knob on your SVS sub is irrelevant Note Use the sub s crossover Enable Disable switch discussed below to take advantage of this configuration Phase Think of long bass waves as conflicting or enhancing each other depending on the timing of their arrival at your listening location either together or not Set phase to zero if your AVR offers set tings for the distance from your seat to your subwoofer Adjust in small steps for smooth sound with music playing if your AVR lacks a subwoofer distance setting Line In Out Use either of the sub s Line In jacks RCA or XLR type to connect the subwoofer to the output jack of your AVR Feed ing just one input is enough If you are using a conventional amp and or a stereo setup you can use the Line Out jacks to send sound filtered of deep bass information back to your system amp or switch off this filter A simple RCA signal cable is all you need for either type configuration See Crossover Feature discussion below for more on Line Out options Auto On Your Powered Box allows itself to be in an Auto On mode or On all the time With the former setting the switch in the Auto position your subwoofer will sense that a DVD or CD etc has begun and switch its audio circuits on immediately the hard power switch mentioned below must be set t
18. tute a risk of electric shock to persons The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the product SV Sound Chapter 3 Welcome At SVS you can actually hear the tireless research and design efforts built in to our subwoofers and speak ers Years are spent developing any SVS product with work typically spanning from our Ohio headquar ters to US west coast technology centers and over to the finest component suppliers in Asia and Europe as well Nothing in our speaker offerings is an off the shelf product SVS is committed to making better sound systems with ele gant looks robust construction and world class technology and materi als We believe you deserve nothing less This manual and the printed Quick Start sheet will help you integrate speakers and subwoofer quickly and with professional results Armed with only a few basic tools such a sound pressure level SPL meter and the test tones built in to most audio video receivers AVR you will achieve smooth detailed and powerful reproduction of all your favorite music and movie audio Expect to hear things you never heard before and expect not to hear some of the artifacts you might have accepted in the past with inferior brands Have a question about your surround sound system For more informatio
19. ur AVR manual Ensure all power to your equipment is off when making these connec tions Also be certain your power outlet can handle a minimum of 500 watts Use of convenience outlets on receivers are not recommended for your sub DD DTS Processor v Cc a e Receiver Fig 1 SV Sound Chapter 6 2 More Setup calibrating and integration If you are running a pair of SVS subwoofers Fig 2 you will need to use an inexpensive Y cable adapter d From the Y cable you can run a stan dard 75 Ohm RCA signal cable e to each sub thus splitting the Low Fre quency Effects LFE and other bass from your receiver and effectively feed ing both subwoofers with the same signal NOTES Determine if you want ON always on or AUTO ON which turns your sub on only when a bass signal is present High power amp designs can require five minutes of OFF time before sub will resume ON status again AVR Subwoofer Out jack RCA XLR Fig 2 Calibration isn t only for technically minded sound enthusiasts It is s criti cal to a proper configuration of your home audio system Fortunately adjust ing channel balance essentially all calibration amounts to is simple to do The first requirement is to ensure your AVR is ready Thus we recommend you consult your AVR manual to review the choices you have r
20. variety of subwoofer level settings depending on the listening mode you are in With Dolby Digital as your mode use the above calibration routine You may well find that CD Stereo music calls for a lower bass settings The above is a guide ex periment The louder your master AVR volume however the more you should reduce the subwoofer s playback level to compensate You should always avoid your driver bottoming resulting in a loud clack Location and measurement You should take the above measurements from your typical preferred seat for watching movies Be advised strong bass levels can vary tremendously simply by moving your seat or your sub woofer just a short distance Such is the nature of long wavelength deep bass sound Do not hesitate to try different locations and different levels for your subwoofer Setting playback levels on the sub which are too high and often too low is the most common theater music setup error Chapter 9 SV Sound Advanced Features Room Compensation In typical home theaters a phenomenon known as room gain can play a major role in how accurately bass is produced When any subwoofer produces notable bass energy below 27Hz the output you will perceive is different than the sub s normal output would be if unaf fected by your room s walls The difference in theoretical bass versus actual bass response is depicted in the graph below The red tra
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