K-10
operation manual
K-11
K-10
K-9
powered subwoofer
Miller & Kreisel Sound Corporation
9351 Deering Avenue
Chatsworth, CA 91311-5858 USA
(818) 701-7010 fax (818) 701-0369
www.mksound.com
©2002 Miller & Kreisel Sound Corp.
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TABLE OF CONTENTS
1. SAFETY INSTRUCTIONS...............................................................................................................3
2. INTRODUCTION..................................................................................................................4
3. WHERE TO LOCATE YOUR SUBWOOFER..................................................................................................4
4. SUBWOOFER HOOK-UP.........................................................................................................5
WIRING WITH THE RCA JACK INPUTS.......................................................................................................6
USING SPEAKER WIRE CONNECTIONS.....................................................................................................7
SATELLITE SPEAKER WIRING OPTIONS ..................................................................................................8
PLUGGING IN THE SUBWOOFER.............................................................................................................9
5. SATELLITE/SUBWOOFER PHASING TEST.............................................................................9
6. USE OF THE "LOW PASS FILTER" CONTROL.......................................................................................10
7. USE OF THE "BYPASS" SWITCH................................................................................................................10
8. USING MULTIPLE SUBWOOFERS.............................................................................................10
9. K-11 SUBWOOFER.....................................................................................................................................10
10. HOME THEATRE USAGE............................................................................................................................11
CONNECTING TO A SURROUND SOUND RECEIVER OR PROCESSOR...............................................11
11. TROUBLESHOOTING........................................................................................................................11
12. IF YOU NEED SERVICE..............................................................................................................................13
13. M&K 5.1 CHANNEL & PRO-LOGIC SYSTEM SETUP GUIDE........................................................................13
14. SPECIFICATIONS........................................................................................................................................16
WIRING DIAGRAMS
FIGURE 1 CONNECTING TO A SURROUND PROCESSOR........................................................................6
FIGURE 2 CONNECTING TO A STEREO AMP OR PREAMP.......................................................................7
FIGURE 3 TO AN AMP OR RECEIVER USING SPEAKER WIRES...............................................................8
FIGURE 4 SATELLITE SPEAKER WIRING (OPTIONAL)...............................................................................8
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CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
The lightning flash with arrowhead,
within an equilateral triangle, is intended
to alert the user of 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.
TO PREVENT THE RISK OF ELECTRIC
CAUTION:
SHOCK, DO NOT REMOVE COVER (OR
BACK). NO USER-SERVICEABLE
PARTS INSIDE. REFER SERVICING TO
The exclamation point within an equilateral triangle is intended to alert the user
of the presence of important operating
and maintenance (servicing) instructions in the literature accompanying the
appliance.
QUALIFIED SERVICE PERSONNEL.
1. SAFETY INSTRUCTIONS
1. READ INSTRUCTIONS - All safety and operating instructions should be read before this product is operated.
2. RETAIN INSTRUCTIONS - The safety and operating instructions should be retained for future reference.
3. HEED WARNINGS - All warnings on this product and in the operating instructions should be adhered to.
4. FOLLOW INSTRUCTIONS - All operating and use instructions should be followed.
5. ATTACHMENTS - Do not use attachments not recommended by the product manufacturer as they may cause hazards.
6. WATER AND MOISTURE - Do not use this product near water - for example, near a bath tub, wash bowl, kitchen sink, or
laundry tub; in a wet basement; or near a swimming pool; and the like.
7. ACCESSORIES - Do not place this product on an unstable cart, stand, tripod, bracket, or table. The product may fall, causing
serious injury to a child or adult, and serious damage to the product. Use only with accessories recommended by the
manufacturer, or sold with the product. Any mounting of the product should follow the manufacturer's instructions and should
use a mounting accessory recommended by the manufacturer.
8. POWER SOURCE - This product should be operated only from the type of power source indicated on the marking label. If
you are unsure of the type of power supply to your home, consult your product dealer or local power company.
9. OVERLOADING - Do not overload wall outlets or extension cords as this can result in a risk of fire or electric shock.
10. LIQUID ENTRY - Never spill any liquid of any kind on the product.
11. SERVICING - Do not attempt to service this product yourself as opening or removing covers, including those over bottom or
side speaker drivers, may expose you to dangerous voltage or other hazards. Refer all service to qualified service personnel.
12. DAMAGE REQUIRING SERVICE - Unplug this product from the wall outlet and refer servicing to qualified personnel under
the following conditions:
a. When the power-supply cord or plug is damaged.
b. If liquid has been spilled, or objects have fallen into this product.
c. If the product does not operate normally by following the operating instructions. Adjust only controls that are covered
by the operating instructions as an improper adjustment of other controls may result in damage and will often require
extensive work by a qualified technician to restore the product to its normal operation.
d. If the product has been dropped or damaged in any way.
e. When the product exhibits a distinct change in performance - this indicates a need for service.
13. REPLACEMENT PARTS - When replacement parts are required, be sure the service technician has used replacement parts
specified by the manufacturer or have the same characteristics as the original part. Unauthorized substitutions may result
in risk of fire, electric shock, or other hazard.
14. SAFETY CHECK - Upon completion of any service or repairs to this product, ask the service technician to perform safety
checks to determine that the product is in proper operating condition.
15. HEAT - This product should be situated away from heat sources such as radiators, heat registers, stoves, or other products
(including amplifiers) that produce heat.
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2. INTRODUCTION
Congratulations! You have just made perhaps the most exciting and dramatic addition that you could make
to your audio or multichannel audio/video system. The new dimension of deep and powerful bass provided by
your M&K K-series powered subwoofer will thrill and excite you.
We encourage you to read this owner's manual, as there is a great deal of information provided here to help
you get the best possible performance. This manual gives you basic hook-up instructions first, followed by more
detailed technical, installation, and service information.
If you have any questions about your Subwoofer, please contact your M&K dealer, or call us directly at (818)
701-7010, from 8:30 AM to 5:00 PM Pacific Time. We will be more than happy to help you with any question,
no matter how simple or complex it may be. You can also access our web site at: www.mksound.com or send
us an email to support@mksound.com.
3. WHERE TO LOCATE YOUR SUBWOOFER
M&K Subwoofers perform well in most room locations. Unless your ear is a foot or two away from the
Subwoofer, you will hear the deep bass coming exclusively from your Satellite (or main) speakers. There is no
need to place your Subwoofer in-between the Satellite speakers.
For the best performance, we recommend that your subwoofer be placed against a wall, preferably
in a corner.
The ideal place for the subwoofer is the corner with the best structural strength. If the corners are roughly
equal in construction, use the corner nearest the listening position. If the listening position is in the front half of
the room, place the subwoofer in a front corner. If the listening position is in the back of the room, place the
subwoofer in a back corner.
Feel free to experiment with the orientation of the subwoofer cabinet. Sometimes the best sound results
from aiming the subwoofer's driver directly into the wall (1" to 2" from the wall itself).
If possible, avoid corners near doorways or openings.
Another option to find the best location for the subwoofer is to place the subwoofer at the listening position
and walk around the room. Stand in and near each corner. The location where you hear the tightest bass with
the most impact is probably the best location in the room for the subwoofer.
If you are using multiple subwoofers, place them in the same location. Stacking is best, but you can also
put them side by side. This also applies if you are using a K-10 and a K-11 to make a push-pull, dual driver
subwoofer. See Section 8, page 10.
Alternately, you can put multiple subwoofers in different locations. This is appropriate when you have
limited choices in locating the subwoofer and none of the available locations work well. Try to place multiple
subwoofers at equal distances from the listening position to avoid phase cancellation.
Ultimately, the amount and quality of bass you get in your room are dependent on the room itself. Low
frequency bass sounds are affected most by the size of the room and the method of construction used to build
it. All rooms are different when it comes to reproducing bass, and in any given room, bass quantity and quality
changes when the Subwoofer is moved from one location to another.
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A simple rule to remember is that you get more bass when you move the Subwoofer towards any wall or
corner. Moving it away from a wall or corner gives you less bass. Remember that the floor also loads the
Subwoofer, and that maximum bass is found with the woofer on the floor in a corner.
In some rooms, a corner location may excite resonance modes, resulting in a muddy or boomy sound. In
these rooms, a more central location along a wall, away from the corner, may give better results. If you
experiment, try to find a spot where no bass notes seem to overpower others and the overall sound is powerful
and clean. The goal is to achieve a smooth sound quality, with the entire bass spectrum equally prominent. In
most rooms, this is directly in the corner, not the center of the room.
Because the subwoofer generates a great deal of energy, its output may vibrate objects close to it. If you
hear such vibration, you may need to damp the vibration of nearby objects.
One subwoofer is sufficient in a stereo system because of the nature of human hearing. The ear-brain
hearing system is unable to locate the direction of bass sounds below approximately 100 - 150 Hz. The direction
of low frequency sounds (drums, basses, etc.) is determined by the higher frequency overtones and harmonics
that are reproduced by the Satellite speakers.
K-Series powered subwoofers have an exceptionally sharp (36 dB/octave) low-pass filter to remove the
midbass and midrange frequencies, unwanted in a Subwoofer. This makes your M&K Subwoofer
directional.
truly
non-
The K-9 subwoofer is not magnetically shielded (The K-10 and K-11 are magnetically shielded). Leave
2 - 3 feet of clearance around any television set. Shielding avoids magnetization of the shadow mask of the
television's picture tube, which will distort the television's picture. If this ever happens to your set, turn it off and
on a few times to use the set's built-in degaussing circuitry. If the problem persists, contact a TV technician and
ask him or her to use an external degaussing coil.
No matter where you put the Subwoofer, you must allow room for ventilation of its heatsink and backplate.
The Subwoofer's power amplifier is mounted on the backplate, and it generates heat.
1. Leave clearance around the Subwoofer's heatsink. Do not cover it with drapes.
2. Do not place the Subwoofer near baseboard heaters or forced air heating outlets.
3. Do not use the Subwoofer outdoors or in a humid environment.
Do not plug the Subwoofer into an AC outlet until all system wiring is complete.
4. SUBWOOFER HOOK-UP
There are two different ways to connect the Subwoofer to your system. One uses speaker wire, and the
other uses interconnect cable with RCA-type jacks.
If your receiver or processor has a SUBWOOFER OUTPUT RCA-type jack, use it. This is the
preferred connection for your M&K subwoofer. If your component does not, skip to "USING SPEAKER WIRE
CONNECTIONS" on page 7).
You cannot use "TAPE OUT" jacks to connect your subwoofer, because these jacks have a fixed
output level that does not change when you adjust the system volume control.
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