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5

 

IMPORTANT NOTES

 

Power Supply

 

301

 

• Do not use this unit on the same power circuit with any 

device that will generate line noise (such as an electric 
motor or variable lighting system).

 

307

 

• Before connecting this unit to other devices, turn off the 

power to all units. This will help prevent malfunctions 
and/or damage to speakers or other devices.

 

Placement

 

352

 

• This device may interfere with radio and television 

reception. Do not use this device in the vicinity of such 
receivers.

 

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.

 

355

 

• To avoid possible breakdown, do not use the unit in a wet 

area, such as an area exposed to rain or other moisture.

 

356

 

• Do not allow rubber, vinyl, or similar materials to remain 

on the piano for long periods of time. Such objects can 
discolor or otherwise harmfully affect the finish.

 

357

 

• Do not put anything that contains water (e.g., flower 

vases) on the piano. 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.

 

359

 

• Do not paste stickers, decals, or the like to this instrument. 

Peeling such matter off the instrument may damage the 
exterior finish.

• During Operation, this device must be placed at a distance 

of no less than 50 cm from any walls.

• Do not allow objects to remain on top of the unit while it is 

in operation.

• If you cover the heat sink, their function is defeated, 

and their temperature can rise to overly high levels, 

which could cause burns if they are accidentally 
touched.

• Placing heavy objects on this unit may result in injury if 

it overturns or falls.

 

Please also refer to “Important Notes on Placement”
 (p. 8).

 

Maintenance

 

401b

 

• To clean the unit, use a dry, soft cloth; or one that is 

slightly dampened. Try to wipe the entire surface using an 
equal amount of strength. Rubbing too hard in the same 
area can damage the finish.

 

402

 

• Never use benzine, thinners, alcohol or solvents of any 

kind, to avoid the possibility of discoloration and/or 
deformation.

 

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.

 

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.

 

557

 

• A small amount of heat will radiate from the unit during 

normal operation.

 

558b

 

• To avoid disturbing your neighbors, try to keep the unit’s 

volume at reasonable levels (especially when it is late at 
night).

 

559a

 

•  When you need to transport the unit, package it in the box 

(including padding) that it came in, if possible. Otherwise, 
you will need to use equivalent packaging materials.

 

562

 

• Use a cable from Roland to make the connection. If using 

some other make of connection cable, please note the 
following precautions.

• 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 infor-
mation on cable specifications, contact the manufac-
turer of the cable.

 

In addition to the items listed under “IMPORTANT SAFETY INSTRUCTIONS” and “USING THE UNIT SAFELY” on pages 2 

and 3, please read and observe the following:

Summary of Contents for DS-50A

Page 1: ...re reproduced faithfully through 24 bit D A conversion thus preventing noise or a drop in sound quality You can use the monitors with a wide variety of equipment and applications through selective use of the analog and digital settings Reproduction of a Variety of Speaker Sounds combination with the VS or VM By connecting the Roland V Studio VS series or V Mixer VM series to the DS 50A and using S...

Page 2: ...d prong are provided for your safety When the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet WARNING IMPORTANT As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug proceed as follows The wire which is coloured GREEN AND YELLOW must be connected ...

Page 3: ...el 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 Do not allow any objects e g flammable material coins pins or liquids of any kind water soft drinks etc to penetrate the unit In households with small children an adult should provide supervision until the child is capable of following all the rul...

Page 4: ...or an authorized Roland distributor as listed on the Information page The unit should be located so that its location or position does not interfere with its proper venti lation Always grasp only the plug on the power supply cord when plugging into or unplugging from an outlet or this unit Try to prevent cords and cables from becoming entangled Also all cords and cables should be placed so they ar...

Page 5: ...f you cover the heat sink their function is defeated and their temperature can rise to overly high levels which could cause burns if they are accidentally touched Placing heavy objects on this unit may result in injury if it overturns or falls Please also refer to Important Notes on Placement p 8 Maintenance 401b To clean the unit use a dry soft cloth or one that is slightly dampened Try to wipe t...

Page 6: ...t switch according to the connector to which the device is attached Coaxial or Optical When the connected digital signal output device is not powered up the Digital In indicator does not light up 10 1 2 3 5 6 7 8 9 1 Analog Input XLR TRS Phone Input Connector Analog Input This is for connecting XLR or TRS phone plugs Both balanced and unbalanced connections are possible NOTE The pin assignment for...

Page 7: ...en using the digital input connectors of two DS 50A monitors for stereo sound the digital signal can be input to either L or R 3 Input Select Switch Used to select Digital Input or Analog Input Select the connector used for the input signal 4 Thru Digital Out Connector When connecting multiple DS 50A monitors with digital signals this connector is used for output to the second DS 50A Refer to Conn...

Page 8: ...ers or other devices always turn down the volume and turn off the power on all devices before making any connections Once the connections have been completed 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 When turning the power off reverse this procedure Connected devices...

Page 9: ...e the DS 50A in combination with this to simulate the sound checks at mixdown which conventionally have required switching between multiple pairs of monitors set up to compare the sound The DS 50A supports the Speaker Modeling function that is included in the Roland V studio VS series and V mixer VM series VS 890 THRU DIGITAL OUT DIGITAL IN COAXIAL DIGITAL IN COAXIAL OPTICAL It is also possible to...

Page 10: ...magnetically shielded HF Driver 19 mm 3 4 soft dome type magnetically shielded Frequency Response 68 Hz to 22 kHz 3dB Crossover Frequency 2 3 kHz active third order LF Amplifier Power 30 W HF Amplifier Power 20 W Analog in Input Sensitivity 0 dBu 0 775 Vrms Input Impedance 20k ohm Balanced Unbalanced Digital in Format Conformity with S P DIF Sample Rate 32 kHz to 96 kHz de emphasis OFF D A Convert...

Page 11: ...dio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consul...

Page 12: ...Grand Floor DUBAI U A E TEL 04 3360715 EGYPT Al Fanny Trading Office P O Box 2904 El Horrieh Heliopolos Cairo EGYPT TEL 02 4185531 REUNION Maison FO YAM Marcel 25 Rue Jules Merman ZL Chaudron BP79 97491 Ste Clotilde REUNION TEL 28 29 16 SOUTH AFRICA That Other Music Shop PTY Ltd 11 Melle Street Cnr Melle and Juta Street Braamfontein 2001 Republic of SOUTH AFRICA TEL 011 403 4105 Paul Bothner PTY L...

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