DOUK AUDIO D05 HiFi Stereo Bluetooth 5.0 Power Amplifier Subwoofer Audio Amplifier Instruction Manual

Instruction Manual

Thank you very much for choosing our products!Please read this manual carefully before using the product.

Instruction of Front & Rear Surface:

1. … … … … …… … …… … ON/OFF Switch/Channel Election/Bass & Treble Adjustment/Loudness Adjustment
2. ………………………… Input channel selection Switch
3. ………………………… OLEDdis play window
4. ………………………… IR remote receiver
5. ………………………… Vol +/- &mute switch
6. ………………………… Bluetooth antenna (Bluetooth is optional)
7. ………………………… PC-USB input interface
8. ………………………… Optical input interface
9. ………………………… Coaxial input interface
10. ………………………… RCA input interface
11. ………………………… A low-pass output
12. ………………………… Speaker interface (Red to positive, Black to negative, R to right speaker, L to left speaker)
13. ………………………… PSU interface (DC power supply, not exceed 36V)

Remote Instruction:

1. ……………………………………… Turn on/off 2
2. ……………………………………… Input channel selection
3. ……………………………………… Sound off
4. ……………………………………… Bass +
5. ……………………………………… Treble
6. ……………………………………… Treble +
7. ……………………………………… Loudness turn/off
8. ……………………………………… Bass
9. ……………………………………… EQ mode selection
10. ……………………………………… Initialization
11. ……………………………………… Vol
12. ……………………………………… Vol +
13. ……………………………………… OLED display window off

OLED display window instruction:

A ……… Input channel display area, USB/Optical/Coaxial/AUX/BT
B……… Input sampling rate area, no signal will show – –
C……… Volume display area Volume range 0-99
D……… At the bottom is the volume progress bar

High and low sound setting display style, high and low sound adjustable range ±12dB

EQ display style, display Jazz/Classical/Dance/Pop/Soft/Normal/Rock/SoftRock according to the selection

Open different EQs in TONE-ON mode, HIFI mode is pass-through mode

Operation Steps:

1. Connect speakers to SPK OUT interface
2. Connect the sound source to the sound source input interface
3. Connect power supply (power supply should not exceed DC36V)
4. Press machine ON/OFF or remote control to start the machine
5. Press the machine input channel selection key or the remote control to select the input channel
6. When using bluetooth input, the input channel needs to be set to BT

Instructions for PC-USB operation

1. Connect the PC-USB interface of the rear surface of the machine with factory provided USB cable (USB can support hot plug)

2. Press the input signal selection switch to select USB input.

3. The following photo shows the icon with horn symbol in the lower right corner of PC

4. Click right button to pop up the dialog window and click

5. Select the playback device recognized by PC in the pop-up dialog window (USB of this machine is automatic identification, no manual installation and drive).

6. Click to confirm the identified digital output.

Specification:

PC-USBinput highest
Sampling Frequency| 192K/24Bit| Frequency Range| 20Hz-20kHz(±3dB)
---|---|---|---
Optical/Coaxial input
Sampling Frequency| 192K/24Bit| THD| 0.01%
PC-USB System supported| XP/W7/W8/W10/MAC/linux| SNR| 1—)105dB
Maxpower output| 120W2 40| Product Dimension| L182W126.5H36MM (Does not include protruding knob and terminal)
Matching impedance| 4-80| Product Weight| 0.81kG
Working voltage| DC19-36V| Package Dimension| L3400225H63MM
Input Sensitivity| 0.775V| G. W| 1.55KGS

Frequently Asked Questions:

Why can't I find Bluetooth？

The input channel must be switched to BT to search for a connection to bluetooth

Why music is stutter when using bluetoth?

The effective transmission distance of bluetooth is 10M without blocking. If it exceeds 10M or there is obstruction, the transmission distance of bluetooth will be affected

Will my speakers burn out if I have a speaker below 100W

No, the maximum output of the amplifier is 120W, which means the sound is set to the maximum. If the speaker is low in power, just turn the sound down

Why does the speaker have so loud current noise

If you are not using the power supply not from factory originally, please replace the power supply before testing.Many power sources in the market have high interference factor which will cause high current sound

Why do I plug in the input line and not connect to the sound source, the sound box will have a big buzz？

When the signal line without shielding is not load, there will be interference signal into the amplifier for amplification. If you hate this sound, it suggests you replace the signal line with shielding, or unplug the signal line。 Why is it that the volume of the machine remains the same while different sound sources (such as a CD and a cell phone), but the volume is different. Different devices output different electrical signal amplitudes, such as mobile phones are usually 0.35mV, and CDS are 1V.,then the sounds are of different

Why is there no sound when PC-USB is connected to PC

Please follow the pc-usb operation steps first to confirm whether the digital playback output is selected. If you still have no sound, you can restart the computer and repeat the operation again

Can I keep plugged in and not turn off?

Yes, the power consumption of our machine on standby is very small. Of course, we still suggest to unplug the power if it is not used for more than one hour

Can we use the amplifier in different countries ?

Yes, but it needs to be our standard power supply. And AC 100-240V

Warning:

1. Please do not open the shell without permission. Improper operation may cause the danger of electric shock.
2. Please use the power supply of the regular manufacturer, otherwise it will damage the machine.
3. Please do not use the machine in a high temperature and humidity environment.

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