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User's Manual

11

Your subwoofer is designed to be 

placed in a corner and this will produce 
optimum performance. 

#1    is very good positioning.

#2   is also excellent but may shake 

the back wall too much and cause 
things on or along the wall to rattle 
too much. If this occurs, use the #3 
position:

#3   Move the subwoofer ap prox i mate ly 

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 pres sur ize the room 
with lots of bass.

Ex per i ment 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 (noise) 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 

Location

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-

 rec tion al, factors such as room re 

ß

 ec -

tions, standing waves, resonance and ab-
 sorp tion will strongly affect your subwoof-
er’s per for mance. 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 

Þ

 nd 

the best location 

Þ

 rst.

Remember to keep the subwoofer 
at least two or three feet away from 
any TV screen, computer, VCR or 
mag net ic tapes and discs. This will 

reduce the chance of the magnetic 

Þ

 elds 

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 ex per i ment 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 pream pli 

Þ

  er has a single 

sub/LFE output, use a Y cable to split it 
into two outputs. 

Содержание EQ Signature

Страница 1: ...DIM STANDBY BRIGHT ON True Subwoofer User s Manual Signature and Standard Edition DIM STANDBY BRIGHT ON ...

Страница 2: ...ces 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 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 ...

Страница 3: ...Þgurations 14 Adjusting the Controls 18 SpeciÞcations Signature Edition 19 SpeciÞcations Standard Edition 20 Troubleshooting Guide 21 Limited Warranty 23 Service Assistance 23 Contents To Þnd out more about this and other SunÞre products please visit our website www sunÞre com This apparatus does not exceed the Class A Class B whichever is applicable limits for radio noise emissions from digital a...

Страница 4: ...l 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 Dear Friend Thank you for purchasing my SunÞre True Subwoofer EQ I hope you enjoy it and the music it makes as much as I have enjoyed creating it for you The big brea...

Страница 5: ...n 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 AmpliÞer The large movement range of the driv ers creates greater air pressure inside the...

Страница 6: ... about the same amount This increases the low bass output while leaving the mid bass output the same 3 Phase Control This control changes the relative phase of the subwoofer with respect to your other speakers Use this control to help blend the subwoofer with the rest of your system This is accomplished by adjusting the control in small incre ments as you listen for the most bass at your listening...

Страница 7: ...heater preampliÞer 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 Speaker Level Inputs Under normal conditions the preferred connection is through the line level inputs If this is difÞcult or not possible in your system then you can use the speaker level inputs Also if you exp...

Страница 8: ... Start button is pressed 12 Start button Press this once to enter the Auto EQ mode if the sub is out of Standby mode Press and hold down for several seconds to enter the Manual EQ mode See page 12 for more details on this and the following EQ controls 13 Microphone Input This is where you plug in the supplied linear measurement microphone when you want to use the Auto EQ mode 14 LED display These ...

Страница 9: ... frequency rocking energy allowing it to adhere solidly to the ßoor To move the subwoofer along the ßoor rotate it onto one edge onto a plastic sheet or bag and it will slide along easier Heat rise Allow adequate ventilation around the metal control panel of the subwoofer Do not let anything come into contact with the panel and keep at least two inches away from any walls The metal control plate s...

Страница 10: ...ielded and as short as possible for the job The longest cable in your system will likely be to the subwoofer so choose a good quality brand Some patch cords can be a very tight Þt 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 The su...

Страница 11: ...ng and stand in all the positions where Location 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 ...

Страница 12: ...ouch for example pointing in the direction you ll normally be facing while listening to your system Only use the microphone supplied by SunÞre Room Equalization Procedure 4 Plug the microphone into the subwoof er s microphone jack 5 Set these controls Volume to 0 dB Crossover to Bypass Phase to Normal Equalizer Authority to Normal 6 Turn on the subwoofer AC power switch and press the Start button ...

Страница 13: ...st for the room effects Then follow this manual procedure if you think the equalization might still need a tweak 1 Set these controls Volume to 0 dB Crossover to Bypass Phase to Normal Equalizer Authority to 50 2 Turn on the subwoofer AC power switch 3 Press and hold down the Start button for several seconds until the Þrst pair of yellow LEDs light up 4 A low frequency test tone will sound to help...

Страница 14: ... with a sub LFE output can be connected in the same way The subwoofer will play the low frequency range and the other speakers will play the frequency range delivered to them by your ampliÞer If you have a Home Theater preampliÞer it may have an inde pendent subwoofer vol ume control Make sure this is correctly adjusted and that the SunÞre Subwoofer s crossover frequency is set to 100 Hz This is b...

Страница 15: ...on If this is not preserved the bass in these scenes sounds anemic The SunÞre Subwoofer utilizes differential gain on the left and right inputs to retain both the L R and L R information Therefore systems which do not have a dedicated sub LFE output should use both the left and the right inputs as shown for the greatest bass impact An alternative connection method without using Y cables is shown o...

Страница 16: ...ed high pass crossover point 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 Þltered out This uses the subwoofer s passive crossover network rather than the active network and controls This is an excellent method if your speakers are small satellites or mini monitors and or...

Страница 17: ...ur receiver s power is transferred to the subwoofer There is no need to use the speaker level inputs if you are using a separate ampliÞer and pre ampliÞer Such systems are best connected using the line level inputs as shown in the previous diagrams If you are using the line level inputs and there is a excessive amount of noise or hum present using the speaker level inputs may yield a lower backgro...

Страница 18: ... will do Þne 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...

Страница 19: ...ft input with volume control at 0 dB 60 mVrms volume con trol fully clockwise 0 75 Vrms from right input with volume control at 0 dB 200 mVrms volume control fully clockwise Input Impedance 30 kΩ for Line Level inputs 56 kΩ for Hi Level inputs 40 kΩ for XLR input each leg balanced to ground XLR Input Pin 1 Ground Pin 2 Positive Pin 3 Negative Driver 12 inch Extra large magnet and long throw mechan...

Страница 20: ... mVrms volume control fully clockwise Input Impedance 30 kΩ for Line Level inputs 56 kΩ for Hi Level inputs 40 kΩ for XLR input each leg balanced to ground XLR Input Pin 1 Ground Pin 2 Positive Pin 3 Negative Driver 10 inch Extra large magnet and long throw mechanical design yield very high back emf The result is extraordinarily high operating efÞciency that is more acoustic output for each watt o...

Страница 21: ...ther using a remote control or with a small volume knob on the back panel Make sure that this is adjusted correctly Check that your preampliÞer 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 preampliÞer s subwoofer LFE output has an adjustable crossover frequency make sure that the SunÞre subwoofer s own crossover po...

Страница 22: ...V satellite TV or roof top antennas Make sure that they are disconnected where they Þrst enter the room so they are making no connection to your preampli Þer TV or any other component If the hum is caused by the cable TV line then you will need a ground loop isolator This is an inexpensive device Þtted in line with the coaxial cable feed If the hum persists disconnect all the source components one...

Страница 23: ... 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 speciÞc legal rights an...

Страница 24: ...Manual part number 913 103 00 Rev B ...

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