---
product_id: 473216135
title: "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)"
brand: "douk audio"
price: "95095 Ft"
currency: HUF
in_stock: true
reviews_count: 9
category: "Douk Audio"
url: https://www.desertcart.hu/products/473216135-st-01-pro-200w-bluetooth-amplifier-2-channel-vacuum-tube
store_origin: HU
region: Hungary
---

# Bluetooth 5.0 & multi-inputs 200W peak power output Adjustable treble & bass knobs 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)

**Brand:** douk audio
**Price:** 95095 Ft
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your sound game with vintage warmth and modern power — don’t just listen, experience it!

## Quick Answers

- **What is this?** 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) by douk audio
- **How much does it cost?** 95095 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/473216135-st-01-pro-200w-bluetooth-amplifier-2-channel-vacuum-tube)

## Best For

- douk audio enthusiasts

## Why This Product

- Trusted douk audio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Powerful Yet Compact:** Delivers robust 100W per channel in a sleek, space-saving design that fits any modern setup.
- • **Luxury Meets Function:** Upgraded golden accents and mil-spec vacuum tubes combine style with audiophile-grade performance.
- • **Versatile Connectivity:** Seamlessly connect via Bluetooth 5.0, USB DAC, coaxial, optical, or RCA inputs for all your devices.
- • **Vintage VU Meter Vibes:** Analog meter dances with music, adding warm retro charm to your workspace or living room.
- • **Customizable Sound Profile:** Fine-tune your audio with dedicated treble and bass controls for a personalized HiFi experience.

## Overview

The Douk Audio ST-01 PRO is a compact 2-channel vacuum tube amplifier delivering up to 100W per channel with Bluetooth 5.0 and multiple digital inputs. Featuring an eye-catching VU meter, adjustable treble and bass controls, and premium mil-spec tubes, it blends vintage aesthetics with versatile connectivity and powerful sound, perfect for home theaters and audiophile stereo setups.

## Description

Buy 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): Amplifiers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Impressive performance for such a small and reasonably priced amp! - This is a review of the Douk Audio ST-01 PRO 200W Bluetooth Amplifier. I am a low grade audiophile by my own description--I have spent quite a bit of time listening carefully to the same few tracks on a whole range of components over the last 25 years or so. Engineering background so I take a very pragmatic approach--if I can hear a difference myself then I will consider the costs for better gear across the board. I can't blow money on anything and I don't like to be wasteful so I do a fair bit of research before I buy. This little Douk tube amp has really impressed me! I had an old Denon AVR-5700 home theater receiver that had been demoted over the years to just providing sound for our computer--headphone jack outlet from the computer into the receiver, two passive NHT SB-3 speakers driven by the Denon receiver, and subwoofer line out to one passive NHT W2 subwoofer driven by a dedicated NHT amp. When the Denon died, I needed something to power the same speakers and sub but that's it, just 2.1 channels of sound and not audiophile quality to the Nth degree. There are a whole bunch of these tiny devices out there, I liked this one for its combination of price point, tubes for the two speakers, and subwoofer line out to go to my same NHT dedicated amp for the subwoofer. The size is quite amazing, others have shown the same sort of big ol' receiver that was replaced by this tiny cube--it's really just 4.5"W x 3"H x 6.5"D (from the wall to the front of the dials after I have all the connectors installed). The audio power is also impressive. The claims of 200 W/channel are debatable (another review has very solid points about the power supply and the output claims) and that also will depend on what speakers you are using, where their Ohm ratings will influence the power output. Our computer is in a modest home office sized room, about 10'x12' or so, my two SB-3 speakers are 8 ohms being driven directly by the Douk amplifier via the speaker terminals, and the subwoofer is using the 3.5mm line out to the sub amp, so this little device IS powering my speakers but NOT my subwoofer. When I set it up and started testing with my same old tracks, made some adjustments between the volume on the computer and the volume dial on the Douk, I found that this tiny box can rock this room just fine! I'm impressed with how much bass the Douk pushes to the speakers, which have a very good frequency range themselves, which is nice for most musical circumstances anyway where bass guitars, deeper drum beats, and lower ranges in classical performances get very nicely reproduced. The tone adjustment dials on the Douk are quite nice, recognizing that they are just the two simple dials for bass and treble, so I don't expect them to get any more complicated than that anyway. Between the digital equalizer window on my computer which has 12 bands to work with and the two dials on the Douk, there is quite a bit of refinement you can make to match your personal preference for the types of music you listen to and which parts of that music you prefer to dampen or boost. It's basic but it works well. Like another couple of reviewers, I too received tubes that are much smaller than those shown in the photos on the desertcart product page. However, with a little research it seems that the smaller tubes are most likely an improvement from those pictured. I don't know exactly what those larger tubes are--the product page does suffer from missing details like which tubes are included--but the ones I received are legit General Electric JAN 5725W tubes with "MADE IN USA" printed on the glass tubes themselves, which are mil spec quality (which means they are made to very high quality standards to be accepted for military purposes, back when the military was still using lots of tubes). These are usually offered as an upgrade set of tubes for this Douk so I don't know what happened there but I believe the smaller 5725's are top quality for this level of device. They sound terrific to my ear so I'm delighted with them. I have read way too many subjectively written reviews of the feel and warmth and crispness and all sorts of other floral terms describing how tube amps sound compared to modern transistor-based amps. I don't have two different devices side by side to switch back and forth against each other with every other part of the system being identical so I can legitimately compare point for point the tube am to a transistor amp. Suffice it to say that compared to all of my other experience with transistor amps over these years, this little tube dude sounds fantastic! I haven't had any tube amps before so I will have to see how it performs over time, with things like burn in and eventual failure being known factors, but I don't have the tube testing equipment to test exactly when those thresholds will be crossed, so I'm just gonna enjoy the sound until I hear something wrong. The little ol' analog levels dial with the meter jumping around is quite charming as well. It does give you some useful information, just a basic glimpse into how much or how little you are pushing the power. That feature is a nice little throwback to those old times of analog stereo gear back in the day. And while all you young whippersnappers giggle, you'll also notice how vinyl albums and record players are booming again. There truly is some meaningful, warm charm to having a little visual dial bouncing along to the music with you while you tap your foot and try to concentrate on whatever important task you were supposed to be working on while you jam out, right? Totally gnarly dude (yep, I was in high school in the early 80's, for better and for worse). I am just using the RCA inputs from the computer so I don't have any comments on the other input types that the unit offers. Based on what specs they have provided in terms of formats and frequency ranges, and on my listening experience now with this unit, I would guess that those other input source feeds should work just as well as the RCA input, but that is just a guess. For the money, I am delighted with this Douk, if the need arises I would happily buy another one. Hope that's a helpful review, and hope you get to enjoy your favorite music again like I am!
Review: Great sound from a small package - Don't expect theater sound, but for what it is, it is a great value and a five star product. I am using it in my garage gym, and paired with 5 inch speakers and a powered subwoofer, it pumps out loud, crisp music that even the neighbor complains about. The Blooth connectivity works great and even comes with a remote. Great little system

## Features

- 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BBRBWW36 |
| Best Sellers Rank | #18,057 in Electronics ( See Top 100 in Electronics ) #80 in Audio Component Amplifiers |
| Brand | Douk Audio |
| Customer Reviews | 4.4 4.4 out of 5 stars (453) |
| Date First Available | August 24, 2022 |
| Item Weight | 2.92 pounds |
| Item dimensions L x W x H | 4.53 x 3.84 x 2.13 inches |
| Item model number | ST-01 PRO |
| Manufacturer | Douk Audio |
| Material | Glass, Metal, Plastic, Electrical Components |
| Maximum Supply Voltage | 30 Volts (DC) |
| Minimum Supply Voltage | 18 Volts (DC) |
| Mounting Type | Freestanding |
| Number of Channels | 2 |
| Output Power | 100 Watts |
| Product Dimensions | 4.53 x 3.84 x 2.13 inches |
| Specification Met | FCC |
| Voltage | 18 Volts (DC) |

## Product Details

- **Item dimensions L x W x H:** 4.53 x 3.84 x 2.13 inches
- **Manufacturer:** Douk Audio
- **Maximum Supply Voltage:** 30 Volts (DC)
- **Minimum Supply Voltage:** 18 Volts (DC)
- **Voltage:** 18 Volts (DC)

## Images

![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) - Image 1](https://m.media-amazon.com/images/I/71ZB8jMWbDL.jpg)

## Questions & Answers

**Q: What upgrades does the PRO version offer?​​**
A: 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.

**Q: How does the VU meter improve my setup?​​**
A: It dynamically dances to music under warm lighting, creating vintage vibes and enhancing room decor. Perfect for immersive HiFi experiences.

**Q: Can I customize the sound output?​​**
A: 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.

**Q: What speakers work with this amplifier?​​**
A: 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.

**Q: Which devices connect to its inputs?​​**
A: 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Impressive performance for such a small and reasonably priced amp!
*by B***N on November 12, 2025*

This is a review of the Douk Audio ST-01 PRO 200W Bluetooth Amplifier. I am a low grade audiophile by my own description--I have spent quite a bit of time listening carefully to the same few tracks on a whole range of components over the last 25 years or so. Engineering background so I take a very pragmatic approach--if I can hear a difference myself then I will consider the costs for better gear across the board. I can't blow money on anything and I don't like to be wasteful so I do a fair bit of research before I buy. This little Douk tube amp has really impressed me! I had an old Denon AVR-5700 home theater receiver that had been demoted over the years to just providing sound for our computer--headphone jack outlet from the computer into the receiver, two passive NHT SB-3 speakers driven by the Denon receiver, and subwoofer line out to one passive NHT W2 subwoofer driven by a dedicated NHT amp. When the Denon died, I needed something to power the same speakers and sub but that's it, just 2.1 channels of sound and not audiophile quality to the Nth degree. There are a whole bunch of these tiny devices out there, I liked this one for its combination of price point, tubes for the two speakers, and subwoofer line out to go to my same NHT dedicated amp for the subwoofer. The size is quite amazing, others have shown the same sort of big ol' receiver that was replaced by this tiny cube--it's really just 4.5"W x 3"H x 6.5"D (from the wall to the front of the dials after I have all the connectors installed). The audio power is also impressive. The claims of 200 W/channel are debatable (another review has very solid points about the power supply and the output claims) and that also will depend on what speakers you are using, where their Ohm ratings will influence the power output. Our computer is in a modest home office sized room, about 10'x12' or so, my two SB-3 speakers are 8 ohms being driven directly by the Douk amplifier via the speaker terminals, and the subwoofer is using the 3.5mm line out to the sub amp, so this little device IS powering my speakers but NOT my subwoofer. When I set it up and started testing with my same old tracks, made some adjustments between the volume on the computer and the volume dial on the Douk, I found that this tiny box can rock this room just fine! I'm impressed with how much bass the Douk pushes to the speakers, which have a very good frequency range themselves, which is nice for most musical circumstances anyway where bass guitars, deeper drum beats, and lower ranges in classical performances get very nicely reproduced. The tone adjustment dials on the Douk are quite nice, recognizing that they are just the two simple dials for bass and treble, so I don't expect them to get any more complicated than that anyway. Between the digital equalizer window on my computer which has 12 bands to work with and the two dials on the Douk, there is quite a bit of refinement you can make to match your personal preference for the types of music you listen to and which parts of that music you prefer to dampen or boost. It's basic but it works well. Like another couple of reviewers, I too received tubes that are much smaller than those shown in the photos on the Amazon product page. However, with a little research it seems that the smaller tubes are most likely an improvement from those pictured. I don't know exactly what those larger tubes are--the product page does suffer from missing details like which tubes are included--but the ones I received are legit General Electric JAN 5725W tubes with "MADE IN USA" printed on the glass tubes themselves, which are mil spec quality (which means they are made to very high quality standards to be accepted for military purposes, back when the military was still using lots of tubes). These are usually offered as an upgrade set of tubes for this Douk so I don't know what happened there but I believe the smaller 5725's are top quality for this level of device. They sound terrific to my ear so I'm delighted with them. I have read way too many subjectively written reviews of the feel and warmth and crispness and all sorts of other floral terms describing how tube amps sound compared to modern transistor-based amps. I don't have two different devices side by side to switch back and forth against each other with every other part of the system being identical so I can legitimately compare point for point the tube am to a transistor amp. Suffice it to say that compared to all of my other experience with transistor amps over these years, this little tube dude sounds fantastic! I haven't had any tube amps before so I will have to see how it performs over time, with things like burn in and eventual failure being known factors, but I don't have the tube testing equipment to test exactly when those thresholds will be crossed, so I'm just gonna enjoy the sound until I hear something wrong. The little ol' analog levels dial with the meter jumping around is quite charming as well. It does give you some useful information, just a basic glimpse into how much or how little you are pushing the power. That feature is a nice little throwback to those old times of analog stereo gear back in the day. And while all you young whippersnappers giggle, you'll also notice how vinyl albums and record players are booming again. There truly is some meaningful, warm charm to having a little visual dial bouncing along to the music with you while you tap your foot and try to concentrate on whatever important task you were supposed to be working on while you jam out, right? Totally gnarly dude (yep, I was in high school in the early 80's, for better and for worse). I am just using the RCA inputs from the computer so I don't have any comments on the other input types that the unit offers. Based on what specs they have provided in terms of formats and frequency ranges, and on my listening experience now with this unit, I would guess that those other input source feeds should work just as well as the RCA input, but that is just a guess. For the money, I am delighted with this Douk, if the need arises I would happily buy another one. Hope that's a helpful review, and hope you get to enjoy your favorite music again like I am!

### ⭐⭐⭐⭐⭐ Great sound from a small package
*by M***E on January 30, 2026*

Don't expect theater sound, but for what it is, it is a great value and a five star product. I am using it in my garage gym, and paired with 5 inch speakers and a powered subwoofer, it pumps out loud, crisp music that even the neighbor complains about. The Blooth connectivity works great and even comes with a remote. Great little system

### ⭐⭐⭐⭐ A Basic Beauty
*by S***9 on July 1, 2025*

I simply cannot believe my ears. My previous three amplifiers were a Yamaha, a Marantz, and an NADC – 700. The last one stopped working, and I ordered a Cambridge AXR 100. I was not satisfied with the Cambridge because of the imaging and sound stage was poor so I thought I would try this one. I really did not expect anything, but just wanted to try it out. I am moving and I just needed something to hold me over. Boy was I shocked. The warmth, depth and sound stage on. This are absolutely amazing. The detail is crisp without being brittle, even at low volumes. The sound is simply amazing. I have listened to classical, jazz, Barbra Streisand‘s new album, and a little bit of rock and the one thing that is consistent is the faithful reproduction of the sound and the unbelievable separation and imaging you get with all genres of music. I cannot speak to reliability as I have just had it for one day. But it was very easy to set up. The only reason I gave it a four is the Bluetooth is a little quirky. Extremely easy to pair, but it flickers in and out, especially if you don’t hold your phone still. I’m only about 6 1/2 feet away from the amplifier. There is no passive subwoofer output, the holes in which to place your speaker wire are really difficult to thread because they are smaller than usual, and there is no plug for headphones. Basic sound reproduction you can spit a lot more money, but I don’t think you’re gonna get better sound quality than you get with this little amp. The warmth of the vocals on some of the Frank Sinatra, and Barbra Streisand albums will just knock you out, I have listened to a little bit of Ariana Grande, James Taylor, a touch of Taylor, Swift, and other music on the alternative charts. All I can say is just go ahead and get it. It is worth the $105. You’re going to pay for it. Highly recommended.

## Frequently Bought Together

- 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)
- Banana Plugs with Dual Set Screws,Black and Red Aluminum Shell,6 Pairs

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-27*