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Operation Steps:

 

1. Make sure the VOL buttonto the minimum. 
2. Connect the left and right speakers according to the interface instruction of the 
rear surface, and pay attention to distinguish positive and negative. 

3. Connect the sound source that needs to be used

Use bluetooth transmission to 

refer to the next step

 

4.Switch to bluetooth for bluetooth input when using bluetooth input, the blue light 
of bluetooth indicator flickers, and the blue light remains on after the phone is 
connected successfully 

5. Connect to power. 
6. Press the power switch. 
7. Turn the VOL button clockwise to select the desired volume. 
8.

 The tonal version can be rotated to select the appropriate EQ 

9. 

After connecting the earphone output, the speaker will automatically disconnect 

 

Bluetooth connection: 

Press the power button, and press the power button again to enter the Bluetooth 
connection mode. At this time you will see the blue light flashing. Turn on your 
mobile phone and search for the device. You will see DROK-AUDIO, that is it. 
Click the connection to use the Bluetooth function Already. 

 

Specifications: 

Maxpower output 

50W*2    4Ωload 

Frequency Range 

20Hz-20kHz(±3dB) 

Headphone Maxpower output 

(Headphone Version) 

70mW    32Ωload 

THD 

OUTPUT=1W    0.01% 

 

headphone matching 

impedance 

16-64Ω 

SNR 

≥98dB 

Speakermatching impedance 

4-8Ω 

Dimension

L118.5*W98*H33MM 

Working voltage 

DC12-24V 

Bare Weight 

0.36Kg 

Input Sensitivity 

0.2mV 

PackageDimension

L257*W215*H65MM

 

 

Frequently Asked Questions: 

Q: All cables are connected, but no sound output? 

A: 1. Check if the POWER indicator is on, and turn on the POWER if it is not on.When the indicator light is still 

not on after turn on the power, you can find a laptop power and connect to test whether it is the machine fault 

or a power failure. 

Содержание D503BT

Страница 1: ...b increase clockwise and decrease counterclockwise Treble Knob increase clockwise and decrease counterclockwise VOL increase clockwise and decrease counterclockwise Bluetooth antenna bluetooth is optional Input interface of audio Such as CD DAC decoder mobile phone TV etc red to right channel input white to left channel input Speaker Output red to positive black to negative L to leftspeaker and R ...

Страница 2: ...ction Press the power button and press the power button again to enter the Bluetooth connection mode At this time you will see the blue light flashing Turn on your mobile phone and search for the device You will see DROK AUDIO that is it Click the connection to use the Bluetooth function Already Specifications Maxpower output 50W 2 4Ωload Frequency Range 20Hz 20kHz 3dB Headphone Maxpower output He...

Страница 3: ... of time After a period of time off it was working again A Normally in this case the amplifier is overheat protected and the output power may have exceeded the designed power so you can lower the volume a little and try again Q why does the volume of the machine stay the same while the sound of different audio sources such as CDS and mobile phones is different A The output range of different types...

Страница 4: ...terference will not occur in a particular installation If this equipment does cause harmful interference to radio 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 ϋϋ Reorient or relocate the receiving antenna ϋϋ Increase the separation between the equipment and rece...

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