Douk Audio ST-01 PRO 200W Bluetooth Amplifier, 2 Channel Vacuum Tube Power Amp with USB DAC/Coaxial Optical Inputs/VU Meter/Treble Bass Control for Home Theater/Stereo Speakers (Upgrade Version)

Product description

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Douk Audio ST-01 PRO 200W Bluetooth Amplifier

Vintage Visuals, Modern Precision

Gold VU meters dance with sound; tubes add warm analog tones in a compact design.

Wireless HD Audio Streaming

Stream CD-quality audio wirelessly—stable, low-latency for phones, tablets & laptops.

Universal Audio Compatibility

Connect via USB DAC, OPT/COAX, RCA, U-disk (FLAC/APE/WAV), or Bluetooth—supports all sources.

Hi-Fi Dynamics, Custom Bass/Treble

Powers 3–8Ω speakers; ±6dB tone controls shape highs and lows to your taste.

Command Your Sound Experience

Adjust volume, inputs, and playbackfrom your couch. No need to approach the unit.

1 Dancing VU & Tubes

2 Bluetooth 5.0 Clarity

3 6-Way Input Hub

4 200W with Tone Control

5 Effortless Remote Control

Cinema Immersion Simplified

Compact powerhouse driving bookshelf/floor speakers. Warm tube sound meets theater-scale dynamics.

Premium Soundworkspace Solution

Hi-Fi clarity on your desk– fits 4.5-inch wide spaces.

Subwoofer AUX Output Ready

Use the 3.5mm AUX out to link active subwoofers. Add deep, multi-channel bass systems.

1 Your Home Theater Heart

2 Audiophile Desktop Oasis

3 Expand to 2.1 Power

1 Front

2 Back

3 Side

4 Top

Technical Specifications

Audio input Bluetooth / USB (PC-USB) / Coaxial / Optical / RCA / U-disk (only ST-01 PRO supported) Audio output Banana speaker jacks / 3.5mm AUX Max output power 100W+100W (4Ω) Matched impedance 3-8Ω Sampling rate supported USB input: 96KHz/24Bit, Bluetooth input: 48KHz/24Bit, COAX/OPT inputs: 192KHz/24Bit Supported formats of U-disk MP3 / WAV / WMA / FLAC / APE Max capacity of U-disk 64G Treble/Bass adjustment range ±6dB System PC-USB supported XP/W7/W8/W10/MAC/ Linux Frequency response 20Hz-20kHz(±1dB) S/N ratio ≥98dB THD 0.07% Working voltage DC 18-30V Dimensions(W*D*H) 115*98*54mm / 4.53*3.86*2.13in Net weight 661g / 1.46lb

What upgrades does the PRO version offer?​​

The upgraded ST-01 PRO adds U-disk input for lossless formats, adjustable VU meter sensitivity for signal matching, and decorative gold rings for a premium look. Enhances usability and aesthetics.

How does the VU meter improve my setup?​​

It dynamically dances to music under warm lighting, creating vintage vibes and enhancing room decor. Perfect for immersive HiFi experiences.

Can I customize the sound output?​​

Yes! Use treble/bass controls (±6dB) and vacuum tubes to warm audio, eliminating digital harshness. Ideal for personalized, sweet-sounding HiFi with deep lows and clear highs.

What speakers work with this amplifier?​​

Drives all 3-8Ω passive speakers with 200W total power. Includes AUX output for connecting subs or additional amps, enabling easy multi-channel home theater setups.

Which devices connect to its inputs?​​

Compatible with phones, PCs, TVs, and more via Bluetooth 5.0, USB, coaxial/optical, or RCA. Supports high-res audio up to 192KHz/24Bit for audiophiles.

Douk Audio | Nobsound | Ampapa

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Customer Reviews

4.3 out of 5 stars 497

4.4 out of 5 stars 315

4.4 out of 5 stars 28

4.3 out of 5 stars 69

5.0 out of 5 stars 1

4.4 out of 5 stars 96

4.5 out of 5 stars 155

Price

$83.99$83.99

$199.99$199.99

$249.99$249.99

$104.99$104.99

$179.99$179.99

$62.99$62.99

$139.99$139.99

Type

Tube Bluetooth amp

Bluetooth power amp

Bluetooth DAC

Phono power amp

Tube Bluetooth amp

USB digital interface

VU speaker switch

Audio Input

BT/USB/COAX/OPT/RCA

RCA/TRS/BT 5.2

BT/USB-C/COAX/OPT

Phono MM/RCA

BT/RCA/AUX

USB-C

Amplifiers

Audio Output

Speaker/AUX out

Speaker/Pre-Out

RCA/TRS/Headphone

Speaker jacks

Speaker/AUX out

COAX/OPT/IIS

Passive speakers

Main Chip

TPA3250

TPA3255

ESS9039+AK4493

TPA3255

TPA3255

XMOS XU316

N/A

Max Power

100W x2 4ohm

300W x2 4ohm

1000mW 32ohm

300W x2 4ohm

300W x2 4ohm

N/A

Max Handling 350W

Bluetooth

Bluetooth 5.0

Bluetooth 5.2

Bluetooth 5.2

N/A

Bluetooth 5.1

N/A

N/A

VU Display

Analog VU

Digital VU

Digital VU

N/A

Dual analog VU

N/A

Dual analog VU

Tone Control

Bass/Treble

Bass/Treble

N/A

Bass/Treble

Bass/Treble

N/A

N/A

Pre-Out

AUX out

Pre-Out

Pre-Out

—

AUX pre-out

N/A

N/A

Remote Control

✔

✔

✔

✘

✘

✘

✔

12V Trigger

✘

✔

✔

✘

✘

✘

✘

—

—

—

—

—

—

—

Full Upgraded Version of ST-01: 1. Supports U-disk input to play lossless formats music. 2. Add sensitivity adjustment of VU meter on its bottom, easy to set and match better with different input signals. 3. Add three decorative golden circles around tubes and VU meter, looks more exquisite and luxury.
Unique and amazing combination: With VU meter into whole in such a mini size, the pointer dancing in the warm light with strong vintage feelings when enjoy HiFi music, dynamically decorates the audio system space.
HiFi clear sound with tone control: resonable circuit and concise wiring, adopts vacuum tubes to soften the sound and filter out the digital feelings, sounds warm and sweet without noise. Also with treble and bass knobs to adjust one’s own preferable sound styles, presents HiFi music with rousing highs and deep lows.
Strong output power and special AUX output: use TI’s classic power amp IC, each channel can output 100W(4Ω) and easily to drive all 3-8Ω passive speakers, adds 3.5mm AUX output easy to connect another amplifier or active speaker / subwoofer to build multiple channel system and enjoy wonderful home theater experience.
With multiple digital audio inputs: Bluetooth 5.0 / USB / Coaxial / Optical / stereo RCA, compatible with most audio device such as phones, computers, tablets, TVs, TV, CD players etc. The perfect combination of DAC and amplifier, very suitale for audiophiles who have various audio devices.