background image

The lightning flash with arrowhead symbol within an equilateral triangle is

intended to alert the user to the presence of uninsulated “dangerous voltage”

within the product’s enclosure that may be of sufficient magnitude to constitute

a risk of electric shock to persons.

Le symbole éclair avec point de flèche à l’intérieur d’un triangle équilatéral 
est utilisé pour alerter l’utilisateur de la presence à l’intérieur du coffret de
“voltage dangereux” non isolé d’ampleur suffisante pour constituer un risque
d’éléctrocution.

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.

Le point d’exclamation à l’intérieur d’un triangle équilatéral est employé pour 
alerter les utilisateurs de la présence d’instructions importantes pour le 
fonctionnement et l’entretien (service) dans le livret d’instruction 
accompagnant l’appareil.

Important Safety Instructions

2

NO USER SERVICEABLE

PARTS ARE INSIDE.

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.

10. Protect the power cord from being
walked on or pinched particularly at
plugs, convenience receptacles, and the
point where they exit from the apparatus.

11. Unplug this apparatus during 
lightning storms or when unused for 
long periods of time. 

12. 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. 

13. WARNING: To reduce the risk of fire
or electric shock, this apparatus should
not be exposed to rain or moisture and
objects filled with liquids, such as vases,
should not be placed on this apparatus. 

14. To completely disconnect this 
equipment from the mains, disconnect
the power supply cord plug from the
receptacle. 

15. The mains plug of the power supply
cord shall remain readily operable. 

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 
the polarized or grounding-type plug.
A polarized plug has two blades with
one wider than the other. A grounding
type plug has two blades and a third
grounding prong. 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. 

TABLE OF

CONTENTS

UNPACKING  . . . . . . . . . . . . . 3

PLACEMENT  . . . . . . . . . . . . . 3

HOOKUP  . . . . . . . . . . . . . . . . 4

VOLUME LEVEL   . . . . . . . . . .5

CROSSOVER  . . . . . . . . . . . . 5

FINE TUNING  . . . . . . . . . . . . 5

TROUBLESHOOTING  . . . . . . 7

REPAIR  . . . . . . . . . . . . . . . . . .8

SPECIFICATIONS  . . . . . . . . . 9

WARRANTY  . . . . . . . . . . . . . .9

Summary of Contents for VTF-15H

Page 1: ...und in lesser subwoofers Powerful BASH amplifiers Our custom built amplifiers have ultra high headroom soft clipping subsonic filtering adjustable Q and class A B output stage to provide extremely high fidelity low distortion and high output Flexible room placement The luxurious and smooth non vinyl finishes rounded corners and edges and front firing woofer and ports allow for close placement next...

Page 2: ...particularly at plugs convenience receptacles and the point where they exit from the apparatus 11 Unplug this apparatus during lightning storms or when unused for long periods of time 12 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 i...

Page 3: ...hard drives from being erased Rules of thumb for placement Avoid the center of the room In general avoid placing the subwoofer half way between the front and back walls This is where you get a strong null from your room s standing waves You should also avoid sitting in that area No matter how powerful the subwoofer is there will not be much bass around the center of the room Use corner placement S...

Page 4: ...ord This wire is not included with your subwoofer but can be purchased at electronic or home improvement stores Strip 1 2 of insulation from each end of the wire to expose the bare metal If your speaker wire is fraying tightly twist the metal Unscrew the plastic hex nut on the binding post to insert the exposed wire into the hole Tighten the binding posts by hand Run the wires from your system s a...

Page 5: ...er to the left until you hear the subwoofer and L R speakers as separate sources Slowly turn the control back to the right until the sound of all three speakers is well integrated When using tiny front speakers that don t have much bass the 90 Hz setting on the control will probably yield the best results Your subwoofer has a sharp 24 dB octave crossover to remove upper bass and midrange from the ...

Page 6: ...0Hz when using 80Hz crossover 5 Adjust the subwoofer level so that the lower range average equals the upper range average ie if the lower range average is 5dB more than the upper range average then adjust the subwoofer level down by 5dB If your controller allows you to adjust subwoofer channel level use this to adjust the subwoofer level Otherwise simply adjust the subwoofer volume knob instead A ...

Page 7: ...r damage Also poorly shielded cables can potentially pick up noise Try another interconnect or speaker wire Also move the signal cable away from AC cables power transformers or other EMI sources Use an AC line filter or plug the unit into a different circuit If hum goes away when interconnects are disconnected the hum is coming from the rest of your equipment Add them back one piece at a time The ...

Page 8: ...from the receiver amplifier to the of the subwoofer s speaker level input Connect only to the channel that has a true ground If neither channel has a true ground e mail call technical support Increase the volume of the subwoofer and the subwoofer level or LFE level on the receiver or other source It is best to set the level of the subwoofer relative to the other speakers using a test disk and a Ra...

Page 9: ...U shall not be liable for incidental or consequential damages of any kind or character because of product defects 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 limi tations and exclusions may not apply This Warranty Does Not Cover Damage caused by abuse accident mis use ...

Page 10: ...10 Notes ...

Page 11: ...11 Notes ...

Page 12: ...12 HSU Research 985 N Shepard St Anaheim CA 92806 1 800 554 0150 HSURESEARCH COM ...

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