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CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

ATTENTION

: RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR

CAUTION:   TO REDUCE THE RISK OF ELECTRIC SHOCK,

DO NOT REMOVE COVER (OR BACK).

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 
product’s 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 product.

INSTRUCTIONS PERTAINING TO A RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS.

IMPORTANT SAFETY INSTRUCTIONS

SAVE THESE INSTRUCTIONS

WARNING - When using electric products, basic precautions should always be followed, including the following:

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 a damp cloth.

7.

Do not block any of the ventilation openings. Install in 
accordance with the manufacturers instructions.

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. 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 to the terminal in the plug which is marked by the 

letter E or by the safety earth symbol     or coloured GREEN or GREEN-AND-YELLOW.

The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED.

THIS APPARATUS MUST BE EARTHED
THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE.
GREEN-AND-YELLOW: EARTH, BLUE: NEUTRAL, BROWN: LIVE

For the U.K.

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. Only use attachments/accessories specified by the 

manufacturer.

12. Never use with a cart, stand, tripod, bracket, 

or table except as specified by the 
manufacturer, or sold with the apparatus. 
When a cart is used, use caution when 
moving the cart/apparatus combination to 
avoid injury from tip-over.

13. Unplug this apparatus during lightning storms or when 

unused for long periods of time.

14. 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.

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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