Roland DS-50A 用户手册

 

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Make sure the Input Level control has not been turned 
fully counterclockwise.

 

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Make sure the Input Select switch has been set to the 
connector where the input signal is connected (Digital 
Input or Analog Input).

 

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Make sure the Digital Input select switch has been set 
to the connector where the input signal is connected 
(Optical or Coaxial).

 

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Input a digital signal to the Digital Input connector. 
No sound is produced when an analog signal is input.

 

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Could you be using a connection cable that contains a 
resistor? Use a connection cable that does not contain a 
resistor.

 

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Check the setting of the Assign switch (Right, L+R, or 
Left). The DS-50A uses an identical construction for the 
left and right monitors, and makes no distinction between 
left and right. During digital signal input, set the Assign 
switch L or R as appropriate for your setup.

 

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System

 

2 Way Bi-Amplified Monitor

 

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Enclosure

 

Bass-reflex type

 

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Cabinet

 

1/2" MDF, Baffle: 3/4” MDF

 

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LF Driver

 

120 mm (5") Foamed polypropylene 
cone type, magnetically shielded

 

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HF Driver

 

19 mm (3/4") soft dome type, 
magnetically shielded

 

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Frequency Response

 

68 Hz to 22 kHz (+/-3dB)

 

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Crossover Frequency

 

2.3 kHz (active third order)

 

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LF Amplifier Power

 

30 W

 

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HF Amplifier Power

 

20 W

 

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Input Sensitivity

 

0 dBu (0.775 Vrms)

 

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Input Impedance

 

20k ohm (Balanced/Unbalanced)

 

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Format

 

Conformity with S/P DIF

 

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Sample Rate

 

32 kHz to 96 kHz (de-emphasis: OFF)

 

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D/A Converter

 

24 bit

 

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Controls

 

LEVEL Knob
LF TRIM Knob (80 Hz, +/-3dB)
HF TRIM Knob (10 kHz, +/-3dB)
INPUT SELECT SW
(Analog In/Digital In)
ASSIGN SW (Right/L+R/Left)
DIGITAL INPUT SELECT SW
(Optical/Coaxial)
POWER SW

 

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Indicators

 

POWER
DIGITAL IN

 

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Connectors

 

ANALOG INPUT(XLR/TRS PHONE, 
Balanced/Unbalanced)
DIGITAL INPUT (Optical)
DIGITAL INPUT (Coaxial)
DIGITAL THRU OUT (Coaxial)

 

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Power Supply

 

AC117 V,AC230 V or AC240 V

 

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Power Consumption

 

50 W

 

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Dimensions

 

197 (W) x 267 (D) x 312 (H) mm
7-3/4 (W) x 10-1/2 (D) x 12-1/4 (H) 
inches

 

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Weight

 

8 kg / 17 lbs. 11 oz.

 

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Accessories

 

Owner’s Manual
Power cord

197 (7-3/4")

312
(12-1/4")

267 (10-1/2")

6 

(1/4")

261 (10-1/4")

 

If there is no sound or if the unit does not operate as you expect, please check the following points first. If this does 
not resolve the problem, contact the nearest Roland service center or authorized Roland distributor.