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User's Manual

8

Installation

Observe the following general

precautions and read the safety
instructions on pages 2 and 3 before
using your Sunfire Subwoofer.

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.

Protect it from prolonged exposure
to direct sunlight and other direct
sources of heat, such as heating
vents and radiators.

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.

Avoid excessive exposure to
extreme cold or dust.

Do not place heavy objects on top
of the unit.

Do not place the subwoofer with its
control panel against the floor.

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 serves as the

amplifier 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 sensors.
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
woofer 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.

NOTE: Never remove the ground
pin from any power cords. This is
very dangerous.

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

woofer further than two feet away from
your TV, VCR, tape deck or computer,
so the speaker’s magnet won’t distort the
colors of your TV picture or erase your
video tapes, audio tapes or computer
discs.

Summary of Contents for True Subwoofer Architectural

Page 1: ......

Page 2: ...onnected to a power supply only of the type described in these operation instructions or as marked on the Component 9 Power Cord Protection Power supply cords should be routed so that they are not lik...

Page 3: ...igurations 11 Adjusting the controls 15 Specifications 16 Troubleshooting guide 17 Limited warranty 19 Service assistance 19 Contents To find out more about this and other Sunfire products please visi...

Page 4: ...ly 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 Sunfi...

Page 5: ...he driver however the enormous back electromo tive force generated as a consequence of its large motion and giant magnet causes the current flow to be much less than if it were a 3 3 ohm resistor It i...

Page 6: ...uce frequencies up to 100 Hz With the control fully counter clockwise the subwoofer reproduces up to 35 Hz Rotate the control until the bass sounds natural If the mid bass sounds natural but you want...

Page 7: ...o the subwoofer at the same time 8 High Pass Outputs Line level high pass output signals are available at these jacks These are active whenever a signal is present at the inputs of the subwoofer The h...

Page 8: ...mplifier 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...

Page 9: ...uld 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 quality brand Some patch cords can be a very tight fit and...

Page 10: ...r VCR or magnetic tapes and discs This will reduce the chance of the magnetic fields upsetting the TV screen or erasing your magnetic media Also position the control panel so that it is not touching a...

Page 11: ...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 amplifier If you have a home...

Page 12: ...n differential L R bass The opening scene in Top Gun for example has loads of L R bass information If this is not preserved the bass in these scenes sounds anemic The Sunfire Subwoofer utilizes differ...

Page 13: ...subwoofer s fixed high pass crossover point The signals coming out of the subwoofer s high pass outputs are not affected by any of the controls They are just a copy of the signals going in except that...

Page 14: ...ction of your receiver s power is transferred to the subwoofer There is no need to use the Speaker Level inputs if you are using a separate amplifier and preamplifier Such systems are best connected u...

Page 15: ...ill 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 recon...

Page 16: ...at 0dB 60 mVrms with volume control fully clockwise 0 75 Vrms from right input with volume control at 0dB 200 mVrms with volume control fully clockwise Input impedance 15 K for Line Level inputs 15 K...

Page 17: ...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 adju...

Page 18: ...hat 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 hum is caused by the cable TV line then you will need...

Page 19: ...any defective product and shall not in any event include property or any other incidental or consequential damages which may result from the failure of this product Some states do not allow limitation...

Page 20: ...Manual part number 913 008 00 RevC...

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