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SV Subwoofers 

Page 8 

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 waves to arrive in a complementary, 

enhancing 

fashion is the diffi-

cult job of the phase knob.  Essentially, this control varies the timing of the bass waves 
coming from the sub.  The effect of bass cancellation will vary by volume and frequency 
in your room, and no one setting is likely to ever be “perfect”.  One technique to optimize 
phase is to find a nice “bassy” loop (such as the menu of “Godzilla”) measuring its bass 
response at various SPL peaks.  As the loop runs, vary the phase knob.  Where you see 
the most response on a given bass passage is the phase setting providing  the least bass 
cancellation in your room (for the frequencies of the demo loop you chose).  Adjusting 
phase is mostly a concern in dual sub configurations or systems with “Large” mains.   
 

L

ine In/Out.  

Use one of the sub’s “Line In” jacks to connect the subwoofer to the out-

put jack of your receiver/processor.  Feeding one input is enough.  If you are using a con-
ventional 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. 
 

A

uto 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 ends, the auto-on light turns red, switching the 
sub 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 find this to 
be the case you may leave this switch “On”, or turn the receiver’s subwoofer output 

up

and the sub 

down

.  

 

C

rossover Enable Switch.  

If you allow your DD/DTS surround-sound receiver or 

processor to manage bass frequencies (recommended), this switch should be set to 

Disabled

”.  This eliminates the effects of the  “Crossover Frequency” knob and allows 

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 low frequency 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.   

 

P

ower

.  

This heavy duty two-position switch next to the power cord will cut the power 

to your sub amp.  Flip this switch to off  

before 

you 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.   
 

F

use

.  

User replaceable, contact SVS if you have trouble finding one.  The fuse can be 

accessed by a small  door immediately below the power cord fitting. 

Содержание PC-Ultra

Страница 1: ...ages 4 7 Setup integration and calibration Page 7 8 Powered cylinder amp features Pages 9 11 Parametric equalizer PEQ Pages 12 13 Variable tuning Pages 14 15 Bass demos Last update 27 January 2004 OWN...

Страница 2: ...ully tuned in our labs by bass authority and Sub human Tom Vodhanel You re unlikely to have heard or felt bass like this before unless it was in a top notch commercial movie theater or high end high c...

Страница 3: ...ing driver Coupled with our unique base plates which minimize driver reactive forces you ll find our subs can take a tremendous amount of power and remain rock solid Compliant foam rubber feet on our...

Страница 4: ...s corners The upright configuration of SV Subwoofers makes this easy Whether you put the sub in front or to the rear of your seating area makes surprisingly little difference Deep home theater bass li...

Страница 5: ...refresh on the proce dures to do this Generally this requires ensuring the receiver s test tones or a special test disk like Video Essentials or Avia plays back at the same volume from each of your sy...

Страница 6: ...r receiver processor master vol ume 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 criti...

Страница 7: ......

Страница 8: ...he 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...

Страница 9: ...THIS CONTROL Set the LEVEL control in the Parametric EQ feature group ing until it stops on MIN thus ensuring you do not inadvertently cause poor frequency response until such time as you properly co...

Страница 10: ...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...

Страница 11: ...40Hz Why If we used 40Hz as our center frequency and 50Hz as our high point cutoff we would only attenuate the curve down to 30Hz This will leave a small bump in response near 25Hz because the correct...

Страница 12: ...y 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 b...

Страница 13: ...SVS PC Ultra tuning chart...

Страница 14: ...ic 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...

Страница 15: ...dern 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 wen...

Страница 16: ...rials 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...

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