Russound R12DT User Manual

Complement Series

R12DT

12” Powered Subwoofer

User’s Manual

“WARNING” TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT
EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.

“CAUTION” TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE
COVER. NO USER - SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALI­FIED SERVICE PERSONNEL.

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 products enclosure that
may be of sufficient magnitude to constitute a risk of electric
shock to persons.

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 appliance.

SAFETY INSTRUCTIONS

1. Read Instructions - All the safety and operating instructions should be read
before the appliance is operated.

2. Retain Instructions - The safety and operating instructions should be retained
for future reference.

3. Heed Warnings - All warnings on the appliance in the operating instructions
should be adhered to.

4. Follow Instructions - All operating and user instructions should be followed.

5. Water and Moisture - To prevent fire or shock hazard do not expose this sub­woofer system to rain or excessive moisture. The appliance should not be
used near water - for example, near a bathtub, washbowl, kitchen sink, laun­dry tub, in a wet basement, or near a swimming pool, and the like.

6. Heat - The appliance should be situated away from heat sources such as radi­ators, heat registers, stoves, or other appliances ( including amplifiers ) that
produce heat.

7. Power Sources - The appliance should be connected to a power supply only
of the type described in the operating instructions or as marked on the appli­ance.

8. Grounding or Polarization - The precautions that should be taken so that the
grounding or polarization means of an appliance is not defeated. The sub­woofer may be equipped with a polarized alternating current line plug (a plug
having one blade wider than the other). This plug will fit into the power outlet
only one way. This is a safety feature. If you are unable to insert the plug fully
into the outlet, try reversing the plug. If the plug is still unable to fit, contact or
electrician to replace your obsolete outlet.

9. Power - Cord Protection - Power supply cords should be routed so that they
are not likely to be walked on or pinched by items placed upon or against
them, paying particular attention to cords at plugs, receptacles, and the point
where they exit from the appliance.

10.Cleaning - The appliance should be cleaned only as recommended by the
manufacturer.

11.Non-use Periods - The power cord of the appliance should be unplugged from
the outlet when left unused for a long period of time.

12.Object and Liquid Entry - Care should be taken so that objects do not fall and
liquids are not spilled into the enclosure through the openings.

13.Damage Requiring Service - The appliance should be serviced by qualified
service personnel when:

A. The power - supply cord or the plug has been damaged; or
B. Objects have fallen, or liquid has been spilled into the appliance; or
C. The appliance has been exposed to rain; or
D. The appliance does not appear to operate normally; or
E. The appliance has been dropped or the enclosure is damaged.

14.Servicing - The user should not attempt to service the appliance beyond that
described in the operating instructions. All other servicing should be referred
to qualified service personnel.

15.The apparatus shall not be exposed to dripping or splashing and no objects
filled with liquids, such as vases, shall be placed on the apparatus.

PRECAUTIONS

1. Do Not Touch The Unit With Wet Hands. Do not handle the unit or power cord
when your hands are wet or damp. If water or any other liquid enters the
amplifier cabinet, take the amplifier to qualified service personal for inspec­tion.

2. Location of the Unit - Do not expose the unit to direct sun light or heating
units as the amplifier internal components temperature may rise and shorten
the life of the components. Avoid damp and dusty places.

3. Care – From time to time you should wipe off the front and side panels and
the cabinet with a soft cloth. Do not use rough material, thinners, alcohol or
other chemical solvents or cloths since this may damage the finish or
remove the panel lettering.

4. Lightning – For added protection for the subwoofer during a lightning storm,
or when left unattended and unused for a long period of time, unplug it from
the wall outlet. This will prevent damage to the subwoofer due to a lightning
strike and power-line surges.

5. Do not operate the speakers or subwoofer with the bass, treble and loud­ness controls set to full boost. This will place undue strain on the electronics
and speakers and could damage them.

6. Whenever changing cables, pulling plugs, etc., always turn off all equipment
including the subwoofer. This prevents transients from entering the speakers
and prevents electrical energy from reaching the user. Keep all connections
out of the reach of children.

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IMPORTANT SAFEGUARDS

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INTRODUCTION

The Russound R12DT active subwoofer delivers the
chest-thumping deep bass sound you want for a super­sonic listening experience. Whether it’s the asteroids
breaking apart in your favorite sci-fi movie or the in-your­face concert experience of a classic rock band perform­ance, the R12DT keeps up its end of the deal in your
home theater or audio system. With its built-in amplifier,
the R12DT fits into to any system, and is tuned for both
stereo music audio and for a home theater surround
setup. The R12DT filters out mid- and high-range frequen­cies by sending bass-only signals to its own amplifier via
an active crossover network.

DUAL TUNED PORT DESIGN

The R12DT subwoofer ports are tuned to provide opti­mum bass reinforcement for systems designed primarily
for home theater entertainment or for music listening.

With home theater systems, both ports are left open.
This tuning provides an increase in low frequency output
which is more ideal for movies where explosions and
other action sounds need greater impact.

For music applications, one of the ports is blocked with
the included plug. This tunes the enclosure for a flatter
response with extended low frequency response. It will
produce lower notes and do so more accurately.

R12DT SUBWOOFER

Port

Port

Subwoofer front (grille removed)

The front-firing 12-inch woofer has a 50mm diameter
voice coil and vented pole piece for high power han­dling and more efficient operation.

Woofer

CONNECTIONS

When you make connections make sure the power
switches of all components are off, including the
subwoofer.

Audio Cables

If you are connecting your subwoofer into a system
made up of separate components (preamps and power
amps), you will need audio cables long enough to reach
the subwoofer from the preamplifier and the power
amplifier.

Speaker Wire

Typical speaker wire has a pair of separate conductors
with insulating jackets that are molded together. We rec­ommend that you use 16-gauge wire for connecting the
receiver to the front speakers.

Polarity

All speakers in a system must be connected with the
same polarity. Speaker wire is marked for polarity so
that you can identify which wire in the pair is which.
Polarity is shown by a color strip on the insulation, by
ridged molded into the insulation or be the colors of the
wires, one copper and one silver.

Strip the insulation from speaker wire ends to reveal the
bare conductors before connecting to receiver, sub­woofer or speaker terminals.

Note: Always connect the red (+) terminal on the receiv­er to the red (+) terminal on the subwoofer, and the
black (–) terminal on the receiver to the black (–) terminal
on the subwoofer. The same is true for connecting the
receiver outputs to the front speakers red (+) to red (+)
and black (–) to black (–).