Douk Audio ST-01 200W Bluetooth Amplifier User Manual

Package Contents
Installation and Setup
Connecting Devices
Using the Remote Control
Troubleshooting Tips
Frequently Asked Questions

1. Package Contents

Douk Audio ST-01 Amplifier
Power Adapter
Remote Control
USB Cable
RCA Cable
User Manual

2. Installation and Setup

Unpack the amplifier and place it on a stable surface.
Install the vacuum tubes into the sockets on the top of the amplifier. Make sure they are seated firmly.
Connect the power adapter to the amplifier and plug it into a power outlet.
Turn on the amplifier using the power switch located on the front panel.

3. Connecting Devices

The Douk Audio ST-01 Amplifier supports multiple audio inputs, including Bluetooth, USB, Coaxial, Optical, and Stereo RCA.

Connecting via Bluetooth

Turn on the amplifier and set the input switch to Bluetooth.
On your Bluetooth-enabled device, search for available devices and select "Douk Audio ST-01" to pair.

Connecting via USB

Connect the USB cable to the amplifier and your computer or mobile device with OTG support.
Set the input switch on the amplifier to USB.

Connecting via Coaxial/Optical

Connect the coaxial or optical cable to the amplifier and your audio source.
Set the input switch on the amplifier to Coaxial or Optical, depending on your connection.

Connecting via Stereo RCA

Connect the RCA cable to the amplifier and your audio source.
Set the input switch on the amplifier to RCA.

4. Using the Remote Control

The remote control allows you to control various functions of the amplifier, such as play/pause, volume adjustment, input switching, and track navigation.

5. Troubleshooting Tips

If the amplifier is not turning on, check the power connection and ensure the power switch is in the ON position.
If there is no sound, ensure the correct input is selected and the volume is not muted or set too low.
If you experience Bluetooth connectivity issues, try moving your device closer to the amplifier and ensure there are no obstructions between the devices.
If you hear a clicking sound, this may be normal for some units. However, if it becomes bothersome, consider reaching out to the manufacturer for assistance.

6. Frequently Asked Questions

Can I use this amplifier with my TV?

Yes, you can connect your TV to the Douk Audio ST-01 Amplifier using the optical, coaxial, or RCA inputs.

Can I replace the vacuum tubes with other types?

Yes, the default 6K4 vacuum tubes can be replaced with 6J1, 6J2, 6*1n, 5654, 6J4, 6J5, 6K5, or 6A2 tubes.

What is the maximum output power of the amplifier?

The Douk Audio ST-01 Amplifier has a maximum output power of 100W+100W (4Ω).

Can I connect an active subwoofer to the amplifier?

Yes, you can use the 3.5mm AUX output on the amplifier to connect an active subwoofer or another amplifier for a multi-channel system.

Is the amplifier compatible with my computer or mobile device?

The amplifier's USB input is compatible with Windows XP, Windows 7, Windows 8, Windows 10, macOS, and Linux systems. For mobile devices, the USB input supports devices with OTG functionality.

FAQ [continued]

Q: What is the output power of the Douk Audio ST-01 amplifier?
A: The Douk Audio ST-01 amplifier can offer 100W*2 @ 4 ohm and suits most 3~8 ohm passive speakers.

Q: What are the digital audio inputs supported by this amplifier?
A: The Douk Audio ST-01 amplifier supports Bluetooth 5.0 / USB / Coaxial / Optical / stereo RCA inputs, making it compatible with most audio devices such as phones, computers, tablets, TVs, CD players, etc.

Q: Can this amplifier be used to build a multi-channel system?
A: Yes, the Douk Audio ST-01 amplifier comes with a 3.5mm AUX output that can be used to build a 2.1-CH system (active speaker / active subwoofer) or multi-channel system (another amplifier).

Q: Does this amplifier have tone control?
A: Yes, the Douk Audio ST-01 amplifier has treble and bass tone control knobs to adjust one's own preferable sound styles.

Q: Does this amplifier come with a remote control?
A: Yes, the Douk Audio ST-01 amplifier comes with a convenient remote control with rich functions like play/pause, vol +/-, input switch, prev/next, etc.

Q: What is the weight and dimensions of this amplifier?
A: The Douk Audio ST-01 amplifier weighs 634g / 1.40lb and its dimensions are W*D*H = 115*98*54mm / 4.53*3.86*2.13in.

Q: Can this amplifier work with a turntable if a preamp is used?
A: Yes, the Douk Audio ST-01 amplifier can work with a turntable if you add a phono preamp between them.

Q: Is the line out variable with the volume or is it fixed output?
A: The line out on the Douk Audio ST-01 amplifier is variable with the volume.

Q: Does this amplifier come with a replacement remote control?
A: No, the Douk Audio ST-01 amplifier does not come with a replacement remote control.

Q: What is the voltage required for this amplifier?
A: The Douk Audio ST-01 amplifier requires DC 18-30V.

Q: Does this amplifier make a clicking noise?
A: Some users have reported that this amplifier makes a clicking noise when switching inputs, but it does not bother them much.

Specifications

Brand	Douk Audio
Manufacturer	Douk Audio
Model Number	ST 1
Category	Electronics > Home Audio > Home Theater > Receivers & Amplifiers > Amplifiers
Package Dimensions	11.5 x 9 x 3.4 inches
Item Weight	2.74 pounds
ASIN	B09FPTJ6XD
Item model number	ST 1
Customer Reviews	4.4 out of 5 stars 229 ratings 4.4 out of 5 stars
Best Sellers Rank	#20,003 in Electronics
Date First Available	September 8, 2021
Voltage	30 Volts
Number of Channels	2
Weight	2.74 pounds
First Available	September 8, 2021

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