SV Sound SVS Subwoofer PB12 Ultra User Manual

SV Subwoofers  
OWNERS’  
GUIDE  
SVS PB12-Ultra, PB12-Plus  
and PB12-ISD/V Powered Box,  
Single Driver Subwoofers  
Contents:  
Page 1 Welcome  
Page 2 About your new SV Subwoofer  
Pages 4- 7 Setup, integration, and calibration  
Page 7- 8 Powered box amp features  
Pages 9 - 11 Parametric EQ (Ultra and select Plus subs only)  
Pages 12 - 13 Variable tuning  
Pages 14 - 15 Bass demos  
Last update: 03 April, 2005  
Page 3  
SV Subwoofers  
About your SVS Subwoofer  
Other subwoofers might look like them — but virtually none work like them.  
Not at this price. SVS’s are decidedly different, in how they are designed, produced,  
sold, and even in the exceptional customer service after the sale. No surprise then, you  
could have spent much more and still not come close to the value and performance our  
Powered Box lines provide. But what makes a subwoofer an SVS???  
Quality parts, sane prices. You might be surprised at how inexpensive the  
components in most not-so-inexpensive subwoofers might be. At SVS we scour the  
earth for the best, most cost effective parts (the few we don’t make ourselves), and  
meld them into finely tuned designs that define high performance home theater and  
music bass. Still, cost is always the secondary consideration at SVS. Want woofers,  
amps, or even binding posts? We’ve tested and discarded plenty that didn’t meet our  
tough standards. If we use it, whatever “it” is, you know it made the grade.  
Get “cube-ular”. Many subs we’ve seen are simply poorly made. We did a host of  
studies that optimized the materials, the size, and even the enclosure finish to ensure a  
rigid design that was still compact for its performance and able to take the abuse your  
family and friends can dish out. Hand built like most other SVS parts, the cabinet is no  
ordinary box. Selling direct means your sub, and not glossy ads, gets first priority.  
SVS is quality you can hear.  
Stable downward firing woofer. Our enclosure design is one benefit of our  
commitment to you, but we’ve also taken great lengths to allow for downward firing  
woofers. Coupled with our unique base-plates, which minimize driver reactive forces  
and even strengthen the cabinet itself, you’ll find our subs can take a tremendous  
amount of power and remain rock solid. Two kinds of compliant rubber feet allow for  
stable placement on a variety of surfaces. No rattling, or buzzing allowed!  
Custom low turbulence port designs. When you listen to your trend-setting  
ported sub you’ll hear (and feel) bass like never before, with exceptionally low noise  
and distortion. Huge, patented flared port fittings and expert tuning makes the  
difference! One DVD or music CD and you’ll realize something special went into this  
product.  
Stylish, and understated. From the hand-finished craftsmanship of the enclosure,  
to the elegant base, you’ll be amazed at how easy it is to lose your sub in a corner.  
SVS’s aren’t tiny, but this is one of those times size does matter. There are countless  
brands of “wannabe” subs out there. Fortunately, you didn’t just unpack one.  
World-class power. Our Canadian-built amps are manufactured with a level of fit  
and finish, plus a collection of features and power practically unheard of at this price.  
Did we mention power? It’s there in spades (though we rate them conservatively).  
And SVS starts with efficient subwoofer designs which don’t require significant levels  
of power-robbing equalization to go low and flat. So our amps can work harder at  
reproducing low frequencies, instead of struggling against a lack of enclosure space  
(the bane of clean, deep bass). As a result, we don’t require the megawatts some subs  
do, instead running cool and reliable in our vented enclosures. These digital hybrid  
amps run so cool, we can even dispense with old-fashioned “cooling fins”!  
Page 4  
SV Subwoofers  
Setup, calibrating and integration  
What’s to know? Well, first of all, setting up an SV Subwoofer is  
pretty darn easy. There are a few key things to get right if you want to  
get the most out of your new equipment however.  
Unpacking. You’re probably eager to fire up your sub (we’re the  
same way), but take time to carefully unpack your sub. Set the box and  
other protective shipping materials aside; saving them in case you ever  
need to return the subwoofer for any reason. Fold your box flat for  
storage even.  
Location. They say it’s all about location right? It’s the same with  
setting up your subwoofer. So, where to put it? Go for a corner if you  
can, and avoid putting your sub where it might adjoin large open areas  
Studies have shown 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. Whether you put the sub in front or to the rear of your  
seating area usually makes surprisingly little audible difference. Deep  
movie and music bass, like that from Dolby Digital (DD) “5.1 channel”  
DVDs and digital audio is largely non-directional. You can’t tell where  
it is coming from, even though you can hear, and feel it.  
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 type  
cable (a.) is used to take the subwoofer output of your DD/DTS  
surround sound receiver (b.) and feed the 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: Stop now if you aren’t  
TOTALLY familiar with your re-  
!
ceiver’s manual. Ensure all power to  
your equipment is off when making  
these connections. Also, be certain  
your power outlet can handle a mini-  
mum of 600 watts. (Use of  
“convenience outlets” on receivers  
(a.)  
are not recommended for your SVS).  
(c.)  
(b.  
DD/DTS Processor/Receiver  
(Subwoofer “Out”)  
Fig. 1  
Page 5  
SV Subwoofers  
More Setup, calibrating and integration  
If you are running a pair of SV Subwoofers (Fig. 2), you will need to use  
a standard “Y” cable adapter (d.) The best adaptor to use for this task has  
one male RCA connection and two female RCA outputs. (Radio Shack ®  
stocks them.) From the “Y” cable you can run a standard 75 Ohm RCA  
to RCA signal cable (e.) to each sub, thus “splitting” the Low Frequency  
Effects (LFE) and other bass signals from your receiver and effectively  
feeding both subwoofers with the same signal.  
NOTE: Now is a good time to select if  
you want “ON” (always on) or “AUTO  
!
ON” which turns your sub on only when a bass  
signal is present.  
“Y” cable/splitter from  
receiver  
(e.  
(d.)  
DD/DTS Processor/Receiver  
(Subwoofer “Out”)  
Fig. 2  
Calibration”: This isn’t only for tech minded folks, it’s critical to a  
proper configuration of your home theater sound system. Fortunately,  
adjusting channel balance (or, calibration) is as easy to do as it is impor-  
tant. The first order of business is making sure your DD/DTS surround-  
sound system is set up properly. We recommend you consult your audio/  
video receiver (or processor) manual to refresh on the procedures to do  
this. Generally, this requires ensuring the receiver’s test tones, or a spe-  
cial test disk (like Avia) play back at the same volume from each of your  
system’s full range speakers. That’s left, center, right, left surround and  
right surround (and if equipped, center rear) speakers, plus the sub-  
woofer . (More on sub level in a second). Skip to Page 7 (“Powered Box  
Features”) if you aren’t familiar with your sub’s amp, and come back to  
calibration.  
Some things to check as you get ready to calibrate:  
Are your speakers set to the correct “size”? Your receiver/  
processor should allow you to indicate if your speakers are “Small” or  
“Large”. Selecting the size accordingly will ensure bass goes to most appro-  
priate speakers, and use the subwoofer correctly too. In most instances set-  
SV Subwoofers  
Page 6  
ting ALL speakers to “Small” works best. Let your SVS make the bass! Also, is  
your subwoofer turned “ON”? We don’t mean “is your subwoofer amplifier  
on?” (that’ll be important later too) but rather, is your receiver 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 all-important setup menu of any typical Dolby  
Digital/DTS capable receiver. If you have a choice of “crossover points” for your  
bass, usually “80Hz” works best, unless you have unusually small main speakers.  
Is your receiver connected to the sub amp? Use a shielded RCA cable  
(sometimes called a “patch cord”) to connect the subwoofer output of your DD/DTS  
receiver to either input jack of your SVS’s dedicated amp. Again, you’ll need to  
“split” the bass signal with a “Y Cable” if you have a pair of subs. You only need  
feed one of the two inputs (either Right or Left) of any Powered Box SVS however.  
Is your Radio Shack ® sound pressure level (SPL) me-  
ter ready? This tool is simply vital to proper home theater  
audio setup. It’s akin to a tire pressure gauge for your car. The  
manual which comes with the SPL meter is excellent; we recom-  
mend you read it entirely. Haven’t got the meter yet? Head  
down to your neighborhood Radio Shack ® and snag one. We  
prefer the analog instead of the digital display model but both  
work well. Ask for part number #33-4050. At about $40, it’s a  
bargain. Proper configuration without this meter is practically  
impossible  
.
Getting ready to start now: Make sure your receiver/processor master volume is  
set at “00 dB” or some other easy to remember reference level. Finally, ensure your  
SVS’s volume control is set no more than 1/4 to 1/3rd up at first. It’s also critical to  
check the subwoofer level control of your surround receiver before you begin the test  
tones. Set it to no higher than “-5 dB” initially (that’s usually one quarter way up, given  
a typical receiver’s subwoofer channel level limits of something like –10 dB to +10  
dB) . Your LFE “trim”, if you have one, should be set to 0dB to start (that’s full up) but  
this can be dialed down later to tame peaks if needed. IMPORTANT: Turn off ANY  
sound-field processing modes, “peak limiters”, “mid-night mode” etc. Set the SPL meter  
to “Slow” and “C-weighting” (turn the range dial to 70dB).  
Now play your receiver's internal test tones so you have something to  
measure with your SPL meter. Better yet, buy a calibration DVD, such as Ovation  
Software’s Avia, from us or another authorized vendor. A test disk’s tones ensure your  
entire signal path, from the DVD player to your speakers, is set correctly. Whatever you  
use, when the tones start alternating from speaker to speaker (watch your sound meter  
now), set each full range speaker’s level to about 75 dB (or 85dB if using Avia), by using  
the receiver’s dedicated channel controls (leaving receiver’s master volume the same).  
We recommend you turn down the receiver’s subwoofer output level before you signifi-  
cantly lower your sub’s volume/gain control. This helps keep input distortion to a mini-  
mum. You should not be set much lower than –5 dB however, since some adjustment  
room is needed to lower bass as needed. If your subwoofer reading is still too high then  
turn down the sub’s amp volume a little with each run.  
Page 7  
SV Subwoofers  
But what’s “too high”?? Tastes vary, and so do movie soundtracks, but your SVS  
is capable of tremendous levels of low distortion, low frequency bass — far more than  
most subs. Take advantage of this, especially if you like action movies with lots of “.1”  
channel (LFE) action, and give the sub a bit more “bump” during calibration (also  
known as running the sub “hot”). Keep in mind too that the human ear is relatively in-  
sensitive to low frequencies. This, coupled with the fact most folks don’t watch movies  
at Dolby Digital theater reference level (loud!), means turning the bass up a few decibels  
usually yields a better movie sound experience.  
What sub 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 sub-  
woofer portion of the calibration run using your receiver test tones, or 88dB with Avia.  
(Note: You may want to rotate the sound meter dial to 80dB to get a good reading  
with these higher levels.) Note too that many modern A/V receivers allow a 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… experiment! The  
louder your master volume though, the more you should back off the sub level to com-  
pensate. You must avoid your driver “bottoming”, resulting in a loud “clack”!  
Location and measurement. You should take the above measurements from your  
preferred seat for watching movies. Be advised, strong bass levels can vary significantly  
simply by moving a few feet. Such is the nature of long wave-length, low bass. Try  
different locations and different levels for your subwoofer. Calibrating with the sub-  
woofer’s volume too high (and often, too low) is the most common setup error!  
Powered Box Features. We looked the world over for the best sub amp  
that’s still affordable. In the end we designed our own. The result? A custom, North  
American-made amp with amazing build quality, durability and unbeatable features.  
Volume/Gain Use “gain” (in conjunction with your receiver’s subwoofer output  
level control) to dial in a bass calibration to your liking. Start calibration 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 your DD/DTS receiver/processor’s internal  
crossover to manage bass frequencies (highly recommended), the setting of this knob on  
the sub is irrelevant. (Note: Use the SVS’s crossover “Enable/Disable” switch discussed  
below to take advantage of this configuration.) Otherwise this knob is used to best blend  
your SVS to your other speakers. Typically used in stereo only systems today.  
Phase. Think of bass waves as conflicting or enhancing each other, depending on the  
timing of their arrival at your listening location (either together, or not). Since some of  
your room’s bass might come from main, center and/or surround speakers, as well as  
your sub, getting these bass wave forms to arrive in a complementary, enhancing fash-  
SV Subwoofers  
Page 8  
ion is the difficult job of the phase control. Essentially, “phase” varies the timing of  
the bass waves coming from the sub. But don’t despair if you don’t hear much differ-  
ence with changes to the phase knob — the effect of bass cancellation will vary by  
volume and frequency in your room, and no single setting is likely to ever be  
“perfect”. One simple technique to optimize phase is to find a nice “bassy” loop  
(such as the menu of the “Godzilla” DVD) and measure SPL response at various  
bass peaks. As the loop runs, you can have an assistant adjust the phase control.  
When you see the most response on a given bass passage, typically that’s the setting  
with the least room-induced cancellation (for the frequencies of the demo loop).  
Line In/Out. Use either one of the sub’s “Line In” jacks to connect the subwoofer  
to the output jack of your receiver/processor. Feeding 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. A  
simple RCA to RCA cable is all you need for either type configuration.  
Auto On. Your sub allows an “Auto On” mode… or can be on all the time. With  
the switch in the “Auto” position your subwoofer will “sense” that a DVD or CD etc.  
has begun and switch on immediately (the “hard power switch” mentioned below  
must be on, naturally). A few minutes after a movie finishes, the auto-on light will  
turn red, switching the sub back off. When running (and sensing a signal) the auto-on  
LED will be green. Sometimes, with very low listening levels, your subwoofer might  
not get enough of a bass signal from your surround sound processor to “trip” the  
auto-on circuit. Should you ever find this to be the case you may leave this switch to  
“On”, or turn the receiver’s subwoofer output up, and the sub’s volume down.  
Crossover enable switch. 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”, eliminating the effects of the “Crossover Frequency”  
knob and allowing your sub to reproduce just what it’s 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 output of your speakers.  
High level inputs/outputs. Not commonly used today, but binding posts are  
there in case you don’t have low-level inputs/outputs on your receiver/processor.  
Typically utilized only if you are not using a DD/DTS compatible system.  
Power. This heavy-duty two-position switch next to the power cord will com-  
pletely cut the power to your sub amp. Flip this switch to off before you ever move  
the sub or change inputs or outputs.  
A/C connection. Plug your sub into a dedicated A/C outlet. “Convenience”  
outlets of typical receivers often don’t provide the needed current. Avoid them.  
Fuse. User replaceable, contact SVS if you have trouble finding one. The fuse can  
be accessed by a small round door immediately next to the power cord fitting.  
SV Subwoofers  
Page 9  
Parametric Equalizer (PB12-Ultra and select PB12-Plus subs only).  
Important enough and challenging enough, this feature gets its own section! “PEQ” al-  
lows you to tame a “peak” in your room’s response. Peaks are quite common, especially  
in large rooms or ones where your sub is far from your listening position. NOTE: A  
Sound Pressure Level meter is a must for proper use of the PEQ, so get one before you  
tackle this control. TO DISABLE THIS CONTROL: Set the “LEVEL” control in the  
Parametric EQ feature until it stops on “MIN” — thus ensuring you do not inadvertently  
cause poor frequency response until such time as you properly configure the PEQ.  
First you might ask yourself, “why use a PEQ?” The reason is quite simple. Your room.  
See, most times even a superlative subwoofer which measures very evenly (we say “flat”)  
in an open domain (no reflective boundaries) will not measure the same in your home  
theater or music room. Instead, colliding bass waves can build up and cause a “peak”.  
This is where a parametric equalizer helps out. A PEQ is an electronic circuit which al-  
lows the user to manipulate the input signal so the acoustical output is more desirable for  
their environment, in many cases allowing the worst peak to be “flattened”. By manipu-  
lating the input signal with your PEQ you can cut a wide or narrow peak in response lo-  
cated somewhere in the frequency range of the equalizer. Importantly, the equalizer  
found your sub only allows reduction of peaks, and is “cut only”, not a boost device.  
Measure the room’s response. As indicated above, you must have a firm under-  
standing of your room’s acoustical properties before you use a PEQ. To determine your  
room’s natural response properties (and your subwoofer, in that room) you will need an  
SPL meter shown on Page 6, and at least a pad of graph paper and a pencil for charting as  
below. If you have graphing program similar to Microsoft Excel ® this will save some  
time graphing the response curves. The last item to correctly measure the room’s response  
is a test disc that can play specific frequencies. The disc should contain frequencies from  
20Hz to 100Hz. One of the most popular frequency tests discs is Autosound 2000 CD  
#101. It can be found at www.carsound.com/cds.shtml and is quite inexpensive.  
Freq 20 25 30 35 40 45 50 55 60 65 70 75 80 85  
90 95 100  
SPL 85 84 86 91.5 95 90 84 84 86 86 85 83.5 83 83.5 84.5 85 86  
Room A Re sponse  
96  
93  
90  
87  
84  
81  
Figure 3  
20  
40  
60  
80  
100  
Fr equency  
SV Subwoofers  
Page 10  
This disc allows the user to play 10Hz through 98Hz in one hertz increments allow-  
ing very good resolution over your measurements. Other good examples for test  
discs are Avia’s Guide to Home Theater . When measuring the room’s response use  
a minimum resolution of 5Hz. Figure 3 on the previous page shows a theoretical  
illustration of a room’s response.  
Before you plot your results however, it’s important to note the Radio Shack sound  
meter is not totally "linear" in its accuracy down low. All similar meters are off by  
the similar amount depending on the frequency; so while its sensitivity below 20Hz  
is not what it is at 50Hz, there is a simple way to compensate for this deficiency. It's  
called a compensation chart.  
Simply look to the below frequencies and add the required decibels (dBs) at the fre-  
quency in question. So if your system seems to be measuring 70dBs with a 20Hz  
tone, then really it's putting out 77.5dBs. This is a VERY substantial difference,  
roughly TWICE the acoustical energy, requiring several times the amplifier power to  
achieve. You can see then how critical the below chart is if you are using your PEQ  
to even out or “flatten” the room response of your bass.  
Add the following to your measurements:  
10Hz add 20dBs  
12Hz add 16.5dB  
16Hz add 11.5dB  
20Hz add 7.5dB  
25Hz add 5dB  
31.5Hz add 3dB  
40Hz add 2.5dB  
50Hz add 1.5dB  
63Hz add 1.5dB  
80Hz add 1.5dB  
100Hz add 2dB  
125Hz add .5dB  
SVS PEQ Controls  
Explanation of the controls. Now that we understand how to measure the  
room’s response the next step is to correct the problem areas with the parametric  
equalizer. Before we start turning the controls we need to understand what the ad-  
justments are and how they work (the controls of your SVS may be arranged differ-  
ent than pictured).  
Q. This control determines how wide the correction will be. Each “hash mark”  
on the amp’s front plate represents 0.1 octave adjustments. The “HI” mark is equal  
to 0.1 octave (narrow) and “LO” mark is equal to .9 octave (wide). In Figure 3 the  
highest peak is located at 40Hz and becomes flat again at 50Hz (the Highest Fre-  
quency of the peak). To determine the Q adjustment the following formula is  
needed. More on “Q” in a moment.  
Formula 1  
(Highest Frequency [X] Center Point [Y])  
Center Point (Y)  
SV Subwoofers  
Page 11  
The LEVEL control is the amount of attenuation on the signal located at the center  
frequency. MIN is equal to 0dB and MAX is equal to -12dB “cut”. Each hash mark  
reduces the Center Point in question by 1.5dB.  
The FREQcontrol (short for frequency) is the adjustment for the center point of  
the cut and should target the highest peak frequency in the room’s response. Each  
hash mark for this control moves the center frequency for the desired cut 5Hz, within  
a range of 20-80Hz.  
Adjustments of the parametric equalizer. The first step to adjusting a PEQ is  
determining the “Center Point” of the cut. Determining the Center Point allows us  
to establish a target, or baseline, for further adjustments. In this example (again, look-  
ing to the graph in Figure 3), the peak frequency is roughly 40Hz.  
At this stage we’ll estimate the beginning (lowest frequency) and the end (highest  
frequency) of the peak. In Figure 3 the beginning would be located somewhere near  
25Hz and the end, or Highest Frequency, would be near 50Hz. This would be a  
25Hz bandwidth, with a Center Point located at 37.5Hz (the midpoint between 25  
and 50hz). Notice that the center point of 37.5Hz is not located precisely at the peak  
frequency in the response curve, which was estimated at 40Hz. Why? If we used  
40Hz as our center frequency and 50Hz as our high point cutoff we would only at-  
tenuate the curve down to 30Hz. This will leave a small bump in response near 25Hz  
because the correction would only be located between 30Hz to 50Hz.  
Now that we determined the Center Point we can adjust the “FREQ” control knob to  
37.5Hz, or between the fourth and fifth hash marks, clockwise from the left.  
The next step will properly adjust the “Q” setting. We again need to use Formula 1  
and calculate the Q setting from Figure 3 using Highest Frequency and Center Point  
figures just determined above.  
50Hz – 37.5Hz = 0.33  
37.5Hz  
.33 Q … or just past the third hash mark, clockwise from the left of this control.  
Now that we have successfully adjusted the Q and Frequency controls, we need to  
make the final Level adjustment. In Figure 3 the adjustment should be somewhere  
near –10dB to –11dB, or on the 8th hash mark from the left (1.5dB cut per hash  
mark), completing the adjustments for the parametric equalizer.  
Measure room response for accuracy. After all the adjustments are  
made we recommend you measure the room again to make sure the adjustments are  
correct. If the new response curve is not acceptable then fine-tune things some. For  
example, if the response curve still shows a small peak you should adjust the Level  
control again to compensate. Make sure your overall SPL calibration is set as de-  
scribed earlier in this manual, and enjoy your optimized subwoofer!  
SV Subwoofers  
Page 12  
Subsonic Filter and Port Tuning  
Your new SVS subwoofer not only comes with  
our “Tri-Power” port flares, but custom port  
plugs and variable subsonic filter which allow  
your sub to be “tuned” to even lower frequencies  
than its stock configuration. For most people and  
most rooms, your SVS is already configured for  
the best blend of extension (how deep/low your sub goes) and output (how loud it  
gets at a variety of bass frequencies). However, we know that bass is a very personal  
taste and no two rooms will react exactly the same with any subwoofer. So we in-  
clude a custom “port plug” that, when inserted into a port, allows you the user to  
experiment with a substantially lower “tune”.  
As with all such devices, there are compromises when tuning a sub lower. Installing  
a port block takes some capacity from upper reaches of bass, installing two port  
blocks naturally limits upper bass response even more. So while you will indeed get  
more bass down low (where DVD and music bass is more rare, but quite exciting!),  
you’ll sacrifice total output capacity above the stock tuning point of the sub (where  
bass is more common). You should decide if the effect is pleasing on the sorts of  
movies and music you enjoy.  
How to do it? To insert a port plug, simply squeeze the foam on one end and press  
the plug into a port flare until it is about 1” lower than the edge of the surface of the  
sub. You can remove the plug by inserting your fingertips into the port flare and  
squeezing and pulling on the foam plug at the same time. Be sure to select the sub-  
sonic filter point on the back of your SVS amp which coincides correctly with your  
new “tuning point”. NOTE: We strongly recommend you do NOT run a lower  
subsonic filter point than your port plug configuration would dictate — especially if  
you are running the subwoofer at high sound pressure levels! Moderate levels are  
doubly important if you put the subsonic filter into the 12Hz mode (* contact SVS  
about details on the use of this deepest mode). This simple table indicates the set-  
tings you should use in setting up your sub blockers and the subsonic filter knob.  
SVS Tuning Chart  
Subsonic Filter Knob  
20Hz  
16Hz  
12Hz  
Stock tune (no ports blocked)  
With one port-blocked  
With two ports-blocked *  
Look to the next page for a computer simulated response chart showing the reduc-  
tion of upper bass when adding one, and then two port-blockers to your SVS (along  
with addition woofer excursion needed to keep up with the lower frequencies). The  
bottom line? Many customers feel the slight loss in upper bass output to be insig-  
nificant compared to the deeper response the port block gives. We let you decide.  
SV Subwoofers  
Page 14  
Bassy demo scenes to die for.  
So now what?? You’ve got one of the best theater and music bass sub-  
systems on the planet, you’re calibrated...want to see what she’ll do?  
But of course! Since finding those scenes can be a bit trying, we’ve  
compiled a list of our old favorites below. After all, calibration with test  
tones is important, but it’s movies and music this sub is itching to show  
off. Chapter stops for DVDs are shown, with movie time in hours: min-  
utes: seconds. What are you waiting for? Just hit PLAY!  
“The Iron Giant” Great family animation with SERIOUS bass,  
including strong peaks below 25 Hz. Jump to:  
1. “Chase thru the forest” Scene 8 (20:00 into the movie)  
2. “Robot Landing” (Train Impact) Scene 10 (25:40)  
3. “Green Boom” Scene 27 (1:11:40)  
Antz” Another good family movie, though not perhaps for small  
children. Extremely loud bass above 30 Hz.  
“Terror from Above”, Scene 17 (51:48)  
“The Matrix” Modern, violent, science fiction classic with plenty  
of shoot-’em-up bass blasts. Here’s some subtle and not so subtle.  
1. “Where we are grown”, Scene 12 (42:55)  
2. “Landing in fight”, Scene 15 (50:51)  
3. “Chopper shootout”, Scene 31 (1:47:15)  
“Das Boot” Arguably one of the most compelling war pictures of  
all time with bass approaching 20 Hz. Very loud, very deep.  
1. “Depth charges”, Scene 21 (59:30)  
2. “Storm surfing”, Scene 25 (1:15:15)  
3. “Hitting bottom”, Scene 17 (53:15, Side “B”)  
“Apollo 13” Moving story, with some surprisingly subtle but re-  
vealing bass where it counts.  
1. “Lift off”, Scene 13 (35:15)  
2. “Coming home”, Scene 53 (2:05:43)  
SV Subwoofers  
Page 15  
More Bassy demo scenes.  
“Titanic” You love it...or you hate it. Regardless of which side  
of the ship you sit on, this flick does some serious rumbling for  
you:  
1. “We can’t leave him” Scene 22 (2:21:50)  
2. “Ship Splitting” (2:41:30)  
3. “Last Gasp” (2:42:05)  
Blade” Not one for the kiddies, but loaded with deep bass.  
1. “Footstep”, Scene 4 (7:15)  
2. “Door blown” Scene 20 (50:05)  
“Aliens” Not just another modern sci-fi horror classic, this one  
rocks from intro to final scene.  
1. “Ship drop”, Scene 9 (41:20)  
2. “Awakenings”, Scene 15 (1:12:52)  
"Apocalypse Now" Making This Vietnam war movie, Francis  
Ford Copolla nearly went crazy...imagine what it'll do to your  
subwoofer!  
1. "Chopper ride" Scene 2 (0:19:47)  
2. "ARC LIGHT" Scene 4 (0:26:02)  
3. "Grenade launch" Scene 12 (1:27:58)  
“Contact” SETI with a (bass) twist or two along the way.  
1. “Bombing”, Scene 28 (1:36:30)  
2. “Space truckin”, Scene 33 (1:55:56)  
Dark City” One of Roger Ebert’s favorites, think he likes bass  
too?  
1. “Let the tuning commence”, Scene 8 (34:30)  
2. “City makeover”, Scene 15 (1:27:45)  
Warranty:  
45-day money back warranty. If you are not completely  
satisfied with the performance of your subwoofer, return it to us  
for a full refund of the purchase price. Just a few minor stipula-  
tions should you choose to do this:  
The subwoofer must be returned in original shipping box.  
E-mail SVS first for a return of merchandise number  
(RMA) and display this on the outside of the box.  
The sub must be insured during shipping (SVS may arrange  
UPS pickup to ease any shipping damage issues).  
Shipping costs are not refundable.  
3 year warranty against defects in materials and workmanship.  
SVS will repair or replace any item at its discretion and return  
to the customer as soon as possible. Naturally, this warranty  
does not cover any product subjected to misuse, abuse, or acci-  
dental damage discovered by SVS.  
Except as provided above, SV Subwoofers makes no other war-  
ranties express or implied. Some states do not permit limitation  
or exclusion of implied warranties, so exclusions may not apply  
to the purchaser.  
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 us if you have any warranty question.  

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