Roland Speaker KCW 1 User Guide
Owner’s Manual  
Thank you, and congratulations on your choice of the Roland Powered Subwoofer KCW-1.  
201b  
These sections provide important information concerning the proper operation of the unit.  
Additionally, in order to feel assured that you have gained a good grasp of every feature  
provided by your new unit, Owner’s manual should be read in its entirety. The manual  
should be saved and kept on hand as a convenient reference.  
Before using this unit, carefully read the sections entitled:  
• IMPORTANT SAFETY INSTRUCTIONS (p. 2)  
• USING THE UNIT SAFELY (p. 3–p. 4)  
• IMPORTANT NOTES (p. 5)  
Main Features  
• Equipped with a specialized 10-inch (25 cm) subwoofer speaker, the high-powered KCW-  
1 has an output of 200 watts.  
• The KCW-1’s CROSSOVER knob allows you to balance sounds according to the low-  
frequency playback capability of the connected device.  
• Also featured is a BOTTOM switch that further boosts low-frequency sounds.  
• INPUT and THRU OUT both feature 1/4” phone jacks and XLR connectors for greater  
connectivity to a variety of devices.  
• With the THRU OUT connector, you can even connect devices with no SUBWOOFER  
OUT to the KCW-1.  
• You can connect an optional foot switch and use your foot to switch the output from the  
KCW-1’s speaker on and off.  
• The unit also has a built-in handle for easy portability.  
202  
Copyright © 2003 ROLAND CORPORATION  
All rights reserved. No part of this publication may be reproduced in any form without the  
written permission of ROLAND CORPORATION.  
 
USING THE UNIT SAFELY  
The  
symbol alerts the user to important instructions  
Used for instructions intended to alert  
the user to the risk of death or severe  
injury should the unit be used  
improperly.  
or warnings.The specific meaning of the symbol is  
determined by the design contained within the  
triangle. In the case of the symbol at left, it is used for  
general cautions, warnings, or alerts to danger.  
Used for instructions intended to alert  
the user to the risk of injury or material  
damage should the unit be used  
improperly.  
The  
symbol alerts the user to items that must never  
be carried out (are forbidden). The specific thing that  
must not be done is indicated by the design contained  
within the circle. In the case of the symbol at left, it  
means that the unit must never be disassembled.  
* Material damage refers to damage or  
other adverse effects caused with  
respect to the home and all its  
furnishings, as well to domestic  
animals or pets.  
The ● symbol alerts the user to things that must be  
carried out. The specific thing that must be done is  
indicated by the design contained within the circle. In  
the case of the symbol at left, it means that the power-  
cord plug must be unplugged from the outlet.  
008e  
•
•
001 Before using this unit, make sure to read the  
Use only the attached power-supply cord. Also,  
the supplied power cord must not be used with  
any other device.  
instructions below, and the Owner’s Manual.  
..........................................................................................................  
..........................................................................................................  
001-50  
•
Connect mains plug of this model to a mains  
socket outlet with a protective earthing  
connection.  
•
009 Do not excessively twist or bend the power cord,  
nor place heavy objects on it. Doing so can  
damage the cord, producing severed elements  
and short circuits. Damaged cords are fire and  
shock hazards!  
..........................................................................................................  
002a  
•
Do not open or perform any internal modifica-  
tions on the unit.  
..........................................................................................................  
•
010 This unit, either alone or in combination with an  
..........................................................................................................  
amplifier and headphones or speakers, may be  
capable of producing sound levels that could  
cause permanent hearing loss. Do not operate for  
a long period of time at a high volume level, or at  
a level that is uncomfortable. If you experience  
any hearing loss or ringing in the ears, you should  
immediately stop using the unit, and consult an  
audiologist.  
•
003 Do not attempt to repair the unit, or replace parts  
within it (except when this manual provides  
specific instructions directing you to do so). Refer  
all servicing to your retailer, the nearest Roland  
Service Center, or an authorized Roland  
distributor, as listed on the “Information” page.  
..........................................................................................................  
..........................................................................................................  
•
004 Never use or store the unit in places that are:  
•
011 Do not allow any objects (e.g., flammable  
• Subject to temperature extremes (e.g., direct  
sunlight in an enclosed vehicle, near a heating  
duct, on top of heat-generating equipment); or  
are  
material, coins, pins); or liquids of any kind  
(water, soft drinks, etc.) to penetrate the unit.  
• Damp (e.g., baths, washrooms, on wet floors); or are  
• Humid; or are  
..........................................................................................................  
•
013 In households with small children, an adult  
• Exposed to rain; or are  
should provide supervision until the child is  
capable of following all the rules essential for the  
safe operation of the unit.  
• Dusty; or are  
• Subject to high levels of vibration.  
..........................................................................................................  
..........................................................................................................  
•
014 Protect the unit from strong impact.  
•
007 Make sure you always have the unit placed so it is  
(Do not drop it!)  
level and sure to remain stable. Never place it on  
stands that could wobble, or on inclined surfaces.  
..........................................................................................................  
..........................................................................................................  
008a  
•
The unit should be connected to a power supply  
only of the type described in the operating  
instructions, or as marked on the rear side of unit.  
..........................................................................................................  
3
 
012a  
101a  
•
•
Immediately turn the power off, remove the  
The unit should be located so that its location or  
position does not interfere with its proper venti-  
lation.  
power cord from the outlet, and request servicing  
by your retailer, the nearest Roland Service  
Center, or an authorized Roland distributor, as  
listed on the “Information” page when:  
..........................................................................................................  
102b  
•
Always grasp only the plug on the power-supply  
cord when plugging into, or unplugging from, an  
outlet or this unit.  
• The power-supply cord, or the plug has been  
damaged; or  
• If smoke or unusual odor occurs  
..........................................................................................................  
103a  
• Objects have fallen into, or liquid has been spilled onto  
the unit; or  
•
At regular intervals, you should unplug the  
power plug and clean it by using a dry cloth to  
wipe all dust and other accumulations away from  
its prongs. Also, disconnect the power plug from the  
power outlet whenever the unit is to remain unused for  
an extended period of time. Any accumulation of dust  
between the power plug and the power outlet can result  
in poor insulation and lead to fire.  
• The unit has been exposed to rain (or otherwise has  
become wet); or  
• The unit does not appear to operate normally or  
exhibits a marked change in performance.  
..........................................................................................................  
•
015 Do not force the unit’s power-supply cord to  
..........................................................................................................  
share an outlet with an unreasonable number of  
other devices. Be especially careful when using  
extension cords—the total power used by all devices you  
have connected to the extension cord’s outlet must never  
exceed the power rating (watts/amperes) for the  
•
104 Try to prevent cords and cables from becoming  
entangled. Also, all cords and cables should be  
placed so they are out of the reach of children.  
..........................................................................................................  
extension cord. Excessive loads can cause the insulation  
on the cord to heat up and eventually melt through.  
..........................................................................................................  
•
106 Never climb on top of, nor place heavy objects on  
the unit.  
..........................................................................................................  
•
016 Before using the unit in a foreign country, consult  
107b  
•
Never handle the power cord or its plugs with  
wet hands when plugging into, or unplugging  
from, an outlet or this unit.  
with your retailer, the nearest Roland Service  
Center, or an authorized Roland distributor, as  
listed on the “Information” page.  
..........................................................................................................  
..........................................................................................................  
108a  
•
Before moving the unit, disconnect the power  
plug from the outlet, and pull out all cords from  
external devices.  
•
026 Do not put anything that contains water (e.g.,  
flower vases) on this unit. Also, avoid the use of  
insecticides, perfumes, alcohol, nail polish, spray  
cans, etc., near the unit. Swiftly wipe away any liquid that  
spills on the unit using a dry, soft cloth.  
..........................................................................................................  
109a  
•
Before cleaning the unit, turn off the power and  
unplug the power cord from the outlet (p. 10).  
..........................................................................................................  
•
add •This device is designed to be set on the floor.  
..........................................................................................................  
When using this device, be sure to set it on a stable  
surface, with the unit’s port side facing forward.  
When setting up the unit, always make sure that  
there is ample clearance between the unit and  
walls and other obstructions to maintain easy  
access to the controls.  
110a  
•
Whenever you suspect the possibility of lightning  
in your area, pull the plug on the power cord out  
of the outlet.  
..........................................................................................................  
..........................................................................................................  
4
 
IMPORTANT NOTES  
291b  
In addition to the items listed under “IMPORTANT SAFETY INSTRUCTIONS” and “USING THE UNIT SAFELY” on pages 2,  
3 and 4, please read and observe the following:  
Add  
Power Supply  
• Do not connect this unit to same electrical outlet that is being  
used by an electrical appliance that is controlled by an inverter  
• Do not allow objects to remain on top of the unit while it is in  
301  
operation.  
Maintenance  
(such as a refrigerator, washing machine, microwave oven, or air  
conditioner), or that contains a motor. Depending on the way in  
401a  
• For everyday cleaning wipe the unit with a soft, dry cloth or one  
which the electrical appliance is used, power supply noise may  
that has been slightly dampened with water. To remove stubborn  
cause this unit to malfunction or may produce audible noise. If it  
dirt, use a cloth impregnated with a mild, non-abrasive detergent.  
is not practical to use a separate electrical outlet, connect a power  
Afterwards, be sure to wipe the unit thoroughly with a soft, dry  
supply noise filter between this unit and the electrical outlet.  
cloth.  
307  
402  
• Before connecting this unit to other devices, turn off the power to  
• Never use benzine, thinners, alcohol or solvents of any kind, to  
all units. This will help prevent malfunctions and/or damage to  
avoid the possibility of discoloration and/or deformation.  
speakers or other devices.  
Add  
• For routine care of the carpeted surfaces, use a brush with stiff  
308  
• Although the LEDs are switched off when the POWER switch is  
bristles.  
switched off, this does not mean that the unit has been  
completely disconnected from the source of power. If you need to  
turn off the power completely, first turn off the POWER switch,  
Additional Precautions  
553  
• Use a reasonable amount of care when using the unit’s buttons,  
sliders, or other controls; and when using its jacks and  
connectors. Rough handling can lead to malfunctions.  
then unplug the power cord from the power outlet. For this  
reason, the outlet into which you choose to connect the power  
cord’s plug should be one that is within easy reach and readily  
accessible.  
556  
• When connecting / disconnecting all cables, grasp the connector  
itself—never pull on the cable. This way you will avoid causing  
shorts, or damage to the cable’s internal elements.  
Placement  
351  
557  
• Using the unit near power amplifiers (or other equipment  
• A small amount of heat will radiate from the unit during normal  
containing large power transformers) may induce hum. To  
alleviate the problem, change the orientation of this unit; or move  
it farther away from the source of interference.  
operation.  
558a  
• To avoid disturbing your neighbors, try to keep the unit’s volume  
352a  
at reasonable levels. You may prefer to use headphones, so you  
do not need to be concerned about those around you (especially  
when it is late at night).  
• This device may interfere with radio and television reception. Do  
not use this device in the vicinity of such receivers.  
352b  
559a  
• Noise may be produced if wireless communications devices, such  
• When you need to transport the unit, package it in the box  
as cell phones, are operated in the vicinity of this unit. Such noise  
could occur when receiving or initiating a call, or while  
conversing. Should you experience such problems, you should  
relocate such wireless devices so they are at a greater distance  
from this unit, or switch them off.  
(including padding) that it came in, if possible. Otherwise, you  
will need to use equivalent packaging materials.  
562  
• Some connection cables contain resistors. Do not use cables that  
incorporate resistors for connecting to this unit. The use of such  
cables can cause the sound level to be extremely low, or impos-  
sible to hear. For information on cable specifications, contact the  
manufacturer of the cable.  
354b  
• Do not expose the unit to direct sunlight, place it near devices  
that radiate heat, leave it inside an enclosed vehicle, or otherwise  
subject it to temperature extremes. Also, do not allow lighting  
devices that normally are used while their light source is very  
close to the unit (such as a piano light), or powerful spotlights to  
shine upon the same area of the unit for extended periods of time.  
Excessive heat can deform or discolor the unit.  
add  
• Do not place your hands inside the ports on the front of the  
KCW-1. Your hands may become lodged in the ports, possibly  
resulting in injury to your hand and damaging the unit.  
Particularly when using the unit in the presence of small children,  
always make sure that an adult is present to provide supervision  
and prevent children from inserting their hands or feet in the  
ports.  
3•55bWhen moved from one location to another where the temper-  
ature and/or humidity is very different, water droplets (conden-  
sation) may form inside the unit. Damage or malfunction may  
result if you attempt to use the unit in this condition. Therefore,  
before using the unit, you must allow it to stand for several  
hours, until the condensation has completely evaporated.  
356  
• Do not allow rubber, vinyl, or similar materials to remain on the  
unit for long periods of time. Such objects can discolor or  
otherwise harmfully affect the finish.  
359  
• Do not paste stickers, decals, or the like to this instrument.  
Peeling such matter off the instrument may damage the exterior  
finish.  
5
 
 
Panel Descriptions  
3. BOTTOM switch  
Setting this switch to ON allows you to play the low end  
■ Control Section  
fig.20  
5
4 3  
2
1
with even greater power and punch.  
Use this switch according to the input source as well as the  
performance environment.  
The BOTTOM switch is useful in the following situations.  
• When you want to produce special low-frequency sounds  
in a range beyond what ordinary subwoofers can handle.  
• To get the low bass effect at low volume levels.  
• When the connected device features sufficient low-  
frequency playback, but the proper volume balance with  
the KCW-1 cannot be attained with the CROSSOVER and  
VOLUME knob.  
6
7
*
The BOTTOM switch affects only the speaker output.  
4. PHASE switch  
Setting this switch to INV inverts the phase of sounds played  
from the KCW-1’s speaker.  
8
Ordinarily use the KCW-1 with this switch set to NOR.  
Switch the setting as needed according to conditions where  
the unit is being set up to achieve greater volume in the bass  
range.  
The PHASE switch is useful in the following type of situation.  
• The KCW-1’s low-frequency sound may not be fully  
apparent when the placement relation or room acoustics  
cause phase discrepancies between the KCW-1 and the  
connected device.  
9 10  
11  
1. VOLUME knob  
Switching the PHASE switch in such conditions can allow  
you to achieve greater volume in the bass range.  
This adjusts the total volume level of the unit’s internal speaker.  
*
The PHASE switch affects only the speaker output.  
2. CROSSOVER knob  
This adjusts the frequency range played back from the unit’s  
speaker. Adjust this according to the low-frequency playback  
capabilities of the connected device, as well as the  
performance environment.  
5. FOOT SW jack  
You can connect a momentary-type foot switch (the optional  
DP-2 or BOSS FS-5U) and use the switch to turn the output of  
the KCW-1’s speaker on and off.  
The relationship between the CROSSOVER knob indicator  
and the active frequency range is shown below.  
*
Switching with the foot switch affects only the speaker output.  
INPUT Section  
6. INPUT jacks  
Signals from devices equipped with a SUBWOOFER OUT  
connector are input here. For instructions on connecting to  
devices not equipped with any SUBWOOFER OUT, refer to  
“Instructions for Connecting to Devices With No  
SUBWOOFER OUT” (p. 9).  
Frequency (Hz)  
30  
120  
CROSSOVER Variable range  
Two types of connectors are provided: XLR connectors and  
1/4” phone jacks. Use the type of connector matching the  
device you are connecting.  
When connected to  
When connected to  
large-diameter speakers  
small-diameter speakers  
These accept level input of +4 dBu.  
6
 
Panel Descriptions  
THRU OUT Section  
■ Front Panel  
7. THRU OUT jacks  
Signals input to the INPUT jacks are output here unchanged.  
These are convenient when connecting to devices that have  
no SUBWOOFER OUT. For detailed connection instructions,  
refer to “Instructions for Connecting to Devices With No  
SUBWOOFER OUT” (p. 9).  
12  
Two types of connectors are provided: XLR connectors and  
1/4” phone jacks. Use the type of connectors that match the  
device you are connecting.  
These output jacks provide +4 dBu line level output.  
12. OPERATION indicator  
*
*
*
No sounds are output from the THRU OUT jacks when the  
power is turned off.  
This lights up when the power is on. When a connected foot  
switch is used to switch off the KCW-1’s speaker output, the  
indicator flashes.  
The PHASE switch, BOTTOM switch, and CROSSOVER  
knob do not affect the output from THRU OUT.  
When inputting only to the INPUT L (MONO) jack, the signal  
is output from both the L and R jacks of THRU OUT.  
8. GND LIFT switch  
Allows you to make/break the connection between the GND  
pins of the THRU OUT XLR connectors and the KCW-1’s  
ground.  
If you encounter noise problems that are possibly caused by  
a ground loop, try changing the switch position to alleviate  
the problem.  
9. POWER switch  
This switches the power on and off.  
*
*
Before turning the power on or off, be sure to put the VOLUME  
knob at 0.  
This unit is equipped with a protection circuit. A brief interval  
(a few seconds) after power up is required before the unit will  
operate normally.  
*
*
Refer to p. 10 for the order in which to turn the power to  
connected devices on and off.  
If you need to turn off the power completely, first turn off the  
POWER switch, then unplug the power cord from the power  
outlet. Refer to “Power Supply” (p. 5).  
10. POWER indicator  
This lights up when the power is on.  
11. AC inlet  
Connect the included Power cord here. Plug it firmly in, so  
that the cable does not accidentally become disconnected.  
7
 
Connect your KCW-1  
Instructions for Connecting to Devices Equipped with  
SUBWOOFER OUT Connectors (Mono Connection)  
When connecting to devices equipped with SUBWOOFER OUT connectors, make the connections between  
the KCW-1 and other devices after referring to the following figure.  
fig.  
or  
SUBWOOFER OUT  
DP-2  
Polarity Switch  
FS-5U  
Device equipped  
with SUBWOOFER OUT  
Foot Switch  
(Momentary type)  
Use a 1/4” phone audio cable to connect the SUBWOOFER OUT on the device featuring the SUBWOOFER  
OUT connector to the KCW-1’s INPUT L (MONO).  
Instructions for Connecting to Devices Equipped with  
SUBWOOFER OUT Connectors (Stereo Connection)  
When connecting the KCW-1 to the KC-550/350 or similar devices, and using a stereo link to play sounds in  
stereo, make the connections to the KCW-1 as shown in the following figure.  
fig.  
or  
SUBWOOFER  
OUT  
SUBWOOFER  
OUT  
DP-2  
Polarity Switch  
FS-5U  
Foot Switch  
(Momentary type)  
R ch (Master)  
L ch (Sub)  
Use 1/4” phone audio cables to connect both the R (Master) and L (Sub) SUBWOOFER OUTs on the KC-  
550/350 or other devices to the KCW-1’s INPUT L and R.  
8
 
 
Connect your KCW-1  
Instructions for Connecting to Devices With No SUBWOOFER OUT  
When connecting to devices with no SUBWOOFER OUT connectors, connect such equipment to the KCW-1  
after referring to the following figure.  
or  
or  
MONITOR OUT  
MONITOR  
OUT  
INPUT  
Mixer  
DP-2  
Polarity Switch  
VS Series  
FS-5U  
Foot Switch  
(Momentary Type)  
R ch  
L ch  
Powered Monitor  
Input signals from the VS Series and other output devices to the INPUT connectors. Connect DS Series  
powered monitors or similar devices to the KCW-1’s THRU OUT.  
The INPUT section features XLR and 1/4” phone jacks. Although both types may be used simultaneously,  
adjust the connected devices to attain the proper volume balance between the input devices.  
THRU OUT also includes XLR connectors and 1/4” phone jacks. Both types may be used simultaneously.  
Notes Regarding the Connections  
921  
*
To prevent malfunction and/or damage to speakers or other devices, always turn down the volume, and turn off the  
power on all devices before making any connections. Set the KCW-1’s VOLUME knob to zero.  
562  
*
Some connection cables contain resistors. Do not use cables that incorporate resistors for connecting to this unit.  
The use of such cables can cause the sound level to be extremely low, or impossible to hear. For information on cable  
specifications, contact the manufacturer of the cable.  
922  
*
This instrument is equipped with balanced (XLR) type jacks. Wiring diagrams for these jacks are shown below.  
Make connections after first checking the wiring diagrams of other equipment you intend to connect.  
fig.31  
9
 
 
Connect your KCW-1  
Switching the Power On and  
Off  
941  
Once the connections have been completed (p. 8), turn on  
power to your various devices in the order specified. By  
turning on devices in the wrong order, you risk causing  
malfunction and/or damage to speakers and other devices.  
1. Make sure that all volume controls on the KCW-1 and  
connected devices are set to 0.  
2. Turn on all the devices connected to the KCW-1’s input  
jacks.  
3. Turn on the KCW-1.  
4. Switch on any equipment connected to the KCW-1’s  
THRU OUT jacks.  
5. Adjust the volume levels for the devices.  
6. Before switching off the power, lower the volume on  
each of the devices in your system and then TURN OFF  
the devices in the reverse order to which they were  
switched on.  
942  
*
This unit is equipped with a protection circuit. A brief interval  
(a few seconds) after power up is required before the unit will  
operate normally. For protection from sudden big sound, always  
make sure to have the volume level turned down before  
switching on power.  
943  
*
Always make sure to have the volume level turned down before  
switching on power. Even with the volume all the way down,  
you may still hear some sound when the power is switched on,  
but this is normal, and does not indicate a malfunction.  
945  
*
If you need to turn off the power completely, first turn off the  
POWER switch, then unplug the power cord from the power  
outlet. Refer to Power Supply (p. 5).  
10  
 
   
Block Diagram  
fig.50  
INPUT L  
XLR  
THRU OUT L  
XLR  
INPUT R  
XLR  
THRU OUT R  
XLR  
INPUT L  
(MONO)  
THRU OUT L  
THRU OUT R  
INPUT R  
PHASE  
BOTTOM  
SPEAKER  
MUTE  
PHASE  
BOTTOM  
CROSSOVER  
POWER AMP  
VOLUME  
CROSSOVER  
FOOT SW  
Main Specifications  
Power Supply  
KCW-1: Powered Subwoofer  
AC 117 V, AC 230 V, AC 240 V: 50/60 Hz  
AC 220 V: 60 Hz  
Rated Power Output  
200 W  
Power Consumption  
Nominal Input Level (100 Hz)  
135 W  
Input: +4 dBu (XLR type, 1/4” phone type)  
Dimensions  
Nominal Output Level (100 Hz)  
438 (W) x 440 (D) x 460 (H) mm  
Thru Out: +4 dBu (XLR type, 1/4” phone type)  
17-1/4 (W) x 17-3/8 (D) x 18-1/8 (H) inches  
* 0 dBu = 0.775 Vrms  
Weight  
Speaker  
23.0 kg  
25 cm (10 inches) x 1  
50 lbs 12 oz  
Controls  
Accessory  
VOLUME Knob  
Owner’s Manual  
CROSSOVER Knob  
BOTTOM Switch  
PHASE Switch  
POWER Switch  
GND LIFT Switch  
Power Cord  
Options  
Pedal Switch: DP-2  
Foot Switch: FS-5U (BOSS)  
Indicator  
*
In the interest of product improvement, the specifications and/or  
appearance of this unit are subject to change without prior notice.  
POWER  
OPERATION  
Connectors  
INPUT Connector L, R (XLR type)  
INPUT Jack L (MONO), R (1/4” phone type)  
THRU OUT Connector L, R (XLR type)  
THRU OUT Jack L, R (1/4” phone type)  
FOOT SW Jack (1/4” phone type)  
11  
 
SD000225  
3DH  
 

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