Douk Audio - Buying Guide

Bestselling from Douk Audio on Amazon

1. Nobsound Mini Bluetooth 5.0 Power Amplifier, Stereo Hi-Fi Digital Amp 2.0 Channel 50W 2 with AUX/USB...
2. Douk Audio ST-01 PRO 200W Bluetooth Amplifier, 2 Channel Vacuum Tube Power Amp with USB DAC/Coaxial ...
3. Douk Audio VU3 Dual Analog VU Meter, 2-Way Amplifier/Speaker Switch, Audio Switcher Box with DB Pane...
4. 4 Channel Bluetooth Amplifier, 50W x 4 Audio Power Amp, Hi-Fi Home Stereo Speaker Receiver [Douk Aud...
5. Douk Audio T4 PRO Vacuum Tube Phono Preamp, MM Turntable Preamplifier, GE5654 Hi-Fi Headphone Amp fo...
6. Nobsound G2 Subwoofer Power Amplifier Mini Mono SUB Amp 100W PBTL BTL Bridge Home Theater
7. HiFi Vacuum Tube 7-Band EQ Preamp Equalizer XLR Pre-Amplifier Home (T8 PRO)
8. HiFi Stereo Bluetooth 5.0 Vacuum Tube Amplifier MM Phono Amp for Turntables 320W
9. Douk Audio U3 Headphone Amps, Mini Hi-Fi Amplifier for Home Desktop PC 6.35mm / 3.5mm Headsets, Clas...
10. Mini Stereo Line Level Booster Amplifier Audio Preamp 20dB Gain Volume Control

Features

• This is Nobsound's new power amplifier in 2023. Based on our previous product, we enhance its output power and improve its functionality, while still keep its mini size and elegant design.
• Despite its mini size(can be hold with one hand), the output power is improved to 100W(50W*2) with the upgraded chip. You will be amazed by its output power compared to its size when you see it.
• Supporting AUX/USB/Bluetooth input. You can enjoy your music in different ways. The Bluetooth function is also upgraded to 5.0. Now it is more stable and faster.
• We need to mention that with the USB input, music can be played losslessly(Like connecting with a computer. By the way, you don't need to install a driver). You will be surprised by the sound quality.
• [ISED Certification Registration Number: 30459-NS01GPRO; ISED Hardware Version ldentification Number (HVIN): NS-01G Pro] Prompt and courteous customer service. If you met any troubles or had any questions, please feel free to contact us.
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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(4 ) and easily to drive all 3-8 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.
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Features

• [Newest Version! Upgraded to 300W] As a VU meter, with dual 60*35mm large meter, can dynamically decorate audio environment and provide incomparably visual effects when switching audio signals.
• As an audio switcher, easily to switch between two amplifiers and 2 pair of speakers, no need to plug in and out cables repeatedly to avoid wearing the contact point of the sockets.
• Powerful design and strong compatibility: all channels adopt fully isolation design, each channel's GND is independent without mutual interference. Supports all kinds of amplifier such as BTL / class A / class B / class D digital amplifier / tube amplifier etc.
• Easy Use & Perfect Details: Powered by micro-USB 5V, with built-in protection load for speakers. With remote control, can quickly set the working status from distance. All settings can be saved after shutdown, more convenient to use.
• Proper size with exquisite appearance: cool black case, warm VU meter and clear indicators looks vintage and dynamic, can perfectly match with a variety of usage scenarios, very suitable for audiophiles who have more than one amplifiers or speakers.
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Features

• One group of stereo RCA (CH3 and CH4) can be used as audio input or output by switching the selector, to acheive different demands
• Supporting wired 2 groups of stereo RCA and wireless Bluetooth 5.0 input, compatible with most common audio device such as phones, computers, TVs, MP3, TV, CD players etc. With U-disk input, it can be used as a digital music player, supporting MP3, WAV, APE, FLAC and WMA lossless formats.
• With 4 groups of speaker sockets output, they can output at the same time and each channel with independent volume control. Its max output power can reach 50W 4, and equipped with high-quality 24V/4.5A power supply, enough to drive most home speakers.
• Reasonable circuit layout, concise wiring and high-quality components to ensure HiFi clear sound and long time stable work. Separate design of small and large signal circuit for better circuit protection. Bluetooth 5.0 version with high-gain antenna, ensure more stable and faster transmission.
• Propersize with exquisite appearance, aluminum alloy case is CNC machined and with anodizing process, more fashionable and durable, very suitable for home, office and desktop audio system use.
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Features

• T4 PRO tube preamp meets more HiFi needs: MM phono input, converts phono signal to line level signal, with low-noise integrated circuits and high-quality components to ensure clear and clean sound. 3.5mm AUX input, amplify the low level audio signal from your phone, tablet, PC, MP3 etc., easier to drive amplifier or active speaker and greatly improve the sound quality.
• Imported JAN5654 tubes and vintage warm sound: default comes with JAN5654 tubes, improves everything associated with your music such as detail, transparency, immediacy, richness, dynamic, tone etc., much better than 6J1 series especially in human voice. Pluggable tube socket for tube rolling and sound-shaping, easy to pick from and alter the sound signature to one's preference.
• 3.5mm headphone output and perfect circuit design: T4PRO also with built-in classic headphone amp circuit(2*NE5532), easily to drive 32-300 ohm headphones. Reasonable and advanced architecture, TI TPA5430 for power management, TL071+JRC2068 phono preamp circuit etc., enjoy HiFi analog sound and first-class design with an unbeatable low cost.
• Mini size and excellent performance: all designs full of details, solid aluminum knob, potentiometer for smooth multi-level gain adjustment, grey integrated moulding aluminum alloy shell decorates with special red tube cover and knob, looks vintage and elegant. Compact T4 PRO will give you a different acoustic enjoyment with large dynamic and sweet tube sound even in limited space.
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Features

• G2 can be used as a sub amp or a mono channel amp. It has a mode switcher which can change between SUB and PBLT modes conveniently. Equipped with 19V 4.74A high quality power supply.
• Applications: G2 can be used as a subwoofer power amplifier for passive subwoofers; G2 can be used as a mono amp to drive single channel. You can use two G2 to drive left and right channel separately, which are known as PBLT / BTL Bridge amp. Compared with normal 2.0CH amps, it can ensure totally no interference between two channels and can provide higher power.
• It has a gain setting which allows 4-level of output level setting (20/26/32/36 dB). It can keep the purity of the sound and avoid the resistor influence. Besides, it also has a bass cutoff frequency control knob.
• It adopts TI TPA3116 and NE5532 op-amp, which can offer 100W high power and can drive most home sub and mono speakers. Its optimized circuit can ensure totally no background noise. Besides, it also built-in speaker protection circuit and low pass bass filter.
• Prompt and courteous customer service. For any questions you have, please feel free to contact us on Amazon.
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Features

• Upgraded 7-band EQ preamp: separate and rich frequency band control (50Hz / 125Hz / 315Hz / 750Hz / 2KHz / 6KHz / 16KHz), T8 can compensate for the defects of speakers and sound field by adjusting 7-band high, middle and low frequencies, and modify various sound sources. The timbre and loudness also can be changed to achieve different sound effects.
• Real balanced XLR preamp: support XLR and RCA inputs and outputs, T8 can reproduce high-quality audio for amplifier or active speaker with excellent separation, resolution, sound field, clean background. Also with a balance control to compensate for the left and right channel of all outputs and prevent the sound field positioning from deviating from the center position.
• HiFi warm & sweet tube sound: adopts classic pluggable Soviet Union 6H1N-BN tube to improve everything detail associated with your music, sounds warm and delicate, full and mellow, dynamic and melodious. Pluggable socket design for tube rolling and sound-shaping, easy to pick from and alter the sound signature to one's preference.
• Advanced design and attractive appearance: adopts electrolytic iron plate with good shielding performance, and the performance is precisely balanced; black aluminum alloy chassis with vintage warm tube lights, looks cool, exquisite and durable, very suitable for the audiophiles who pursue HiFi sound.
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Features

• Bluetooth 5.0 & Stereo RCA & MM Phono inputs: MM phono input, converts phono signal to line level signal and amplify it, with low-noise integrated circuits and high-quality components to ensure clear and clean sound. 3.5mm AUX input, amplify the low level audio signal from your phone, tablet, MP3 etc. and provide enough output power for passive speaker, greatly improve the sound quality.
• JAN5654 vacuum tube & HiFi Sound: default with JAN5654 tubes, improves everything associated with your music such as detail, transparency, immediacy, richness, dynamic, tone etc., much better than 6J1 series especially in human voice. Pluggable tube socket for tube rolling and sound-shaping, easy to pick from and alter the sound signature to one's preference.
• Super large output power & low frequency output: adopting TDA7498E amp IC whose max output power can reach 160W+160W(4 ), and equipped with 32V/5A power supply, easily to drive most home passive speakers. And adding subwoofer output, convenient to connect active subwoofer and build 2.1 stereo audio system.
• Perfect Design & Powerful function: with tone control, easy to get more smooth and delicate sound by adjusting treble and bass knob, and bypass function is added to enjoy original sound. A bassboost switch is specially designed to greatly enhance bass effects, the shocking auditory effects make you feel like in the cinema.
• Exquisite Appearance & Proper Size: metal black case and vacuum tube with blue and orange decorating light looks fashionable and attractive, designed input switch / bass and tone pass & bypass switch, very convenient to use and suitable for stereo home and desktop audio system.
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Features

• Adopting innovative circuit design, DC 5-20V wide input working voltage, the amplifier circuit can always work at a high voltage of 26V, and the background noise index is excellent. With wide frequency response extension, excellent transient response, excellent purity and transparency, and good dynamic range.
• Adopting original TI-NE5532 classical op amp and transistor expanding current circuit, using 1300mA large current output transistor working in class A status, with ultra-low distortion, and the sound is warm and delicate, full and mellow.
• Pluggable op amp socket design, convenient to upgrade different op amps and bring much DIY fun and playability for audiophiles. Smooth and mellow sound, suitable for listening to vocals or string music, classic or pop music, and even with unique charm when playing rock.
• Mini size with exquisite appearance and most cost-effective, brings big surprise for all audiophiles, easily to drive most headphones in the market, providing larger power, better sound field and details, very suitable for home/office desltop audio system use.
• With strong drive power, easily to drive most high-impedance headphones such as: HD580/HD600/HD650/K701/K702/Q701/DT880/T70/T90/SR225/SR325/RS1e
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Features

• Mutiple input/output interfaces: with 3.5mm AUX/stereo RCA/5-DIN inputs and stereo RCA/5-DIN outputs, can be compatible with most low-volume audio sources such as ipod, ipad, phone, TV, MP3 player, potable CD player, computer, video game etc., and boost their output to the level needed to drive amplifier or speakers.
• With built-in amplification and voltage boost circuit: adjustable gain to match better with different audio sources, support DC 5-24V wide input voltage that can share the power supply of amplifiers, while L1 can always work at a high voltage of 26V to provide 12.5V high output amplitude and max 20dB high gain.
• Unique design and HiFi clear sound: double-side PCB design, NE5532P op amp with pluggable socket design, convenient to change other op amps to enjoy different sound and bring much DIY fun for audiophiles. High-qaulity sealed potentiometer, with wide frequency bandwidth and excellent dynamic response, the sound is smooth and natural, warm and delicate with ultra-low distortion.
• Mini size with exquisite appearance, compact and all-metal design for durability and shielding the electronics from electromagnetic interference with noise rejection. Perfect design in size and function, suitable for many scenarios to increase the output level, such as home stereo system, mixer or speaker setup, karaoke, audio recording, party, live stage event etc.
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Features

• Douk Audio P1 Preamp has been acclaimed by countless audiophiles worldwide, now we upgrade 6J5 to JAN5654 / GE5654 tubes according to many audiophiles' feedback, the sound quality will be greatly improved.
• With 3 kinds of audio input(Bluetooth/USB/RCA) and 2 kinds of output(RCA/3.5mm headphone), P1 can be used as HiFi tube Preamp, USB DAC or headphone amp with HiFi clear, warm, dynamic, sweet tube sound, bringing extremely high-quality listening experience.
• Bluetooth 5.0 (QCC3034) supporting APTX-HD lossless transmission. PC-USB (CM6642) supporting 24bit 192KHz and compatible with Windows/Mac/Linux system, matching well with many audio devices such as iPod, Phone, MP3 players, TV, Blu-ray players, Echo Dot, CD players, etc.
• Adopting NE5532 op amp+classic 47 headphone amp architecture which can drive 32-300 ohms headphones, and a bypass switch is specially designed to turn on/off the tone control, more convenient to enjoy original sound or obtain more delicate sound with treble and bass control knob, adding much fun and higher playability.
• Exquisite appearance with proper size, blue and orange light decorating vacuum tube, makes it fashionable and attractive, bringing wonderful auditory and visual enjoyment, very suitable for home and desktop audio system.
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Features

• High-Resolution VFD Sound Level Meter: The AK2515 analyzer boasts a 25x15 resolution VFD display, ensuring accurate frequency band representation. It also includes a precise clock display, utilizing an SD3078 built-in crystal oscillator for 3.8ppm accuracy, with a monthly error within 10 seconds, providing both functionality and style.
• Versatile Frequency Range and Connectivity: Covering an extensive 20Hz-20kHz frequency sweep, the AK2515 offers high-precision frequency point testing. The 3.5mm AUX and MIC inputs support both wired and wireless connections, capturing every nuance in sound with ease.
• Advanced AGC and Customizable Display Modes: The AK2515 features a special AGC and spectrum algorithm for optimal visual effects across a wide range of input signals. Switch between -10/-5/-3/-1/0dB gain settings and choose from three display modes (real output, smooth output I, smooth output II) to meet your specific needs.
• Extensive Customization and Adjustable Settings: Tailor your experience with adjustable brightness, main light column falling speed, peak holding and falling speeds, and more. The AK2515 also supports date and time display, four font types, five music spectrum modes, five clock modes, and three level modes, all with a power-off memory function for convenience.
• Noise Filtering and Multiple Modes: With five frequency division and amplification curve modes, the AK2515 enhances visual clarity and sound quality. The noise filtering function significantly improves sound clarity, making it suitable for various environments. Choose from auto, deep sleep, music spectrum, and clock display modes to optimize your audio analysis.
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Features

• [Upgrade!!! Newest version optimize the Bluetooth range and stability as well as sound quality] Using classic TDA7498E chip, max output power can reach 160W + 160W, equipped with high-quality 32V/5A power supply enough to drive above 300W passive speakers. It has a good match with outdoor/ bookshelf/ computer/ desktop /ceiling /floor standing speakers.
• M1 PRO supports stereo RCA and Bluetooth 5.0 input, compatible with phones, computers, TVs, MP3 players, TV, Echo Dot, CD players etc. It is also a digital music player with U-disk input supporting MP3, WAV, APE, FLAC and WMA lossless formats.
• Can build 2.1-CH audio system with its low frequency output for active subwoofer. The bass effects can be strongly enhanced. The sound is more delicate with treble and bass control, the shocking auditory effects make you feel like in the cinema.
• Reasonable circuit layout and concise wiring to ensure HiFi clear and clean sound, no audible noise even at high power output. High gain Bluetooth antenna design, can receive audio signals from greater distance, very practical and powerful.
• Mini size with exquisite appearance, aluminum alloy case and gold-plated terminals are fashionable and durable, with input switch and indicator, very suitable for home and desktop audio system use.
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Features

• [Newest version in 2023. U2 now adopts USB Type-C] U2 is a USB to Toslink optical and coaxial converter, suitable for PC computer, notebook, android phone(OTG), set-top box, rock 64, raspberry pi and so on, it can bring better listening experience than PC own sound card.
• Adopting the digital interface of XMOS XU208 chip solution, with 1000MIPS random access memory much higher than U8 (500MIPS). More stable than Italian Amanero solution and supporting coaxial DSD DOP output.
• With USB Type-C input and TOSLINK optical / coaxial output (can output at the same time), supporting 44.1K-192KHz/16-24Bit sampling rate and DSD64 (DOP), better signal process brings higher sound quality and Hi-Fi listening experience.
• Using gold-plated coaxial interface, the contact internal resistance is smaller and the data transmission is more reliable. U2 is powered by USB, very convenient to carry and use anytime and anywhere.
• Mini size with exquisite design, black and red aluminum cases look cuter and fashionable, very suitable for desktop digital players use.
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Features

• Mini Elegant Size But Powerful: NS-20G mini compact size suits very well for home and desktop use, and the output power is improved to 200W (100W*2) with 2PCS TPA3116 chip; You will be amazed by its output power compared to its size when you see it.
• HiFi Sound and Bluetooth Lossless Transmission: HiFi clear and clarity sound, no audible noise; Bluetooth 5.0+EDR+DSP (Digital Signal Processing) to achieve real wireless lossless signal transmission and enjoy much better Hi-Fi sound quality within 15M distance, which brings you high-grade listening feast without any background noise.
• NS-20G can be used as headphone amplifier(Only support 15-32 headphones). Bluetooth and AUX input can be widely applied to All Your Favorite Devices. Suits 5-8 inches / 4-8 / 20-120W speakers
• Because the Speaker and Headphone can output at the same time, the phone output connect to active subwoofer and speaker jacks connect to passive speakers can make up 2.1 channel audio system, which will enhance the bass effect greatly.
• Compact and Attractive Appearance: Integrated aluminum case with crystal speaker jacks, multifunction decoding knob and dynamic volume LED display, this unique design makes it beautiful and practical as well; 5 fashionable colors for you freely to choose.
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Features

• Powerful Compatibility and Versatility: The Douk Audio U10 Mini Tube Headphone Amplifier is engineered to seamlessly connect with a wide range of audio sources, including MP3 players, smartphones, computers, and CD players. Its dual headphone jacks (3.5/6.35mm) are designed to deliver up to 1100mW of power, effortlessly driving headphones with impedance ranging from 18 to 600 . Additionally, the U10 can function as a stereo preamp, enhancing the audio quality for home speakers and providing an unparalleled listening experience.
• High-Fidelity Sound with Advanced Design: This headphone amplifier boasts an innovative built-in voltage boost circuit that operates at a high voltage of 24V, despite being powered by a DC 5V source. This ensures a sound quality characterized by a silent background, stunning purity, and transparency, along with precise audio positioning and an expansive sound field. The result is an audio device that is not only easy to use but also offers unrivaled sound quality.
• Pluggable Design for Custom Sound Experience: The U10 features two 6A2 tubes that add a warm, natural touch to your audio, providing a full, mellow, and sweet sound. The pluggable design of both the tubes and operational amplifiers (op-amps) allows for easy tube rolling and op-amp upgrading, enabling users to shape their sound to preference and enjoy a variety of sound styles. This design caters to audiophiles who appreciate the ability to customize their listening experience.
• Quality Construction and Cost-Effectiveness: The U10 is housed in a robust all-metal case with excellent shielding, ensuring top-notch sound quality. It features a pure ceramic tube socket with antioxidant contact, which adds to the durability and longevity of the device. Despite its compact size, the U10 delivers powerful sound and is an excellent value for audiophiles who enjoy vocals, string music, light, or classic music genres.
• Easy Setup and Use: The U10 comes with all necessary components for setup, including two 6A2 tubes, an acrylic board, a USB to DC cable, and a user manual. It's important to use a high-quality power adapter (DC5V/ 2A) for optimal performance. The amplifier's inputs and outputs are connected in parallel, allowing for simultaneous use, but caution should be taken not to connect both 3.5mm and RCA inputs at once to avoid mixed audio signals. The U10 is designed to drive even high-impedance headphones with ease, making it a must-have for any serious listener.
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Features

• Versatile Connectivity: Easily switch between two audio sources with our 2-in-1-out/1-in-2-out configuration, perfect for seamless transitions between gaming, calls, and music.
• Compact & Portable: MC1022 s ultra-small design fits any desk setup or travel bag, making it the ideal audio solution for on-the-go professionals and audiophiles.
• No Power Needed: Enjoy a pure, unaltered audio experience with our passive selector that requires no external power, preserving sound quality without any interference.
• User-Friendly Controls: Manage your audio with ease using the intuitive A/B selector, volume control, and one-button mute function, all designed for quick adjustments.
• High-Quality Build: Constructed with customized potentiometers and isolation modules, MC1022 ensures minimal background noise and reliable performance for all your audio needs.
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Features

• MC103-Pro is a 3-way passive stereo audio splitter. It supports 1 stereo XLR inputs and 3 output. You can choose freely according to your audio device.
• MC103 is designed for customers have several music equipment with XLR balanced output. You can conveniently use 1 audio source and 3 amplifiers to compare the performance of your amplifiers.
• All aluminum shell to effectively avoid external noise and guarantee high-quality signal transmission; Gold-plated XLR ports to ensure high reliability electric connection and minimize signal attenuation during its transmission.
• Each channel has been connected with shielding wire to avoid interference from outside and make sure lossless signal transmission. Exquisite appearance with mini size; can be easily placed and carried to enjoy the charming of music everywhere.
• Passive audio switcher, no impact on the sound quality; Silver-plated contacts make the knob very smooth
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Features

• Unique and amazing combination: integrated ST-01 amplifier with VU meter into whole in such a mini size, when enjoy HiFi music, the pointer dancing in the warm light with strong vintage feelings, 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(4 ) and easily to drive all 3-8 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.
• Practical funtions to simplify use: with full-function remote control, all settings can be achieved from the distance; with input selection and indicators, clearly to show the working status in real time; aluminum alloy case is specially designed, cool and unique to decorate your desktop space.
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Features

• Materials: Aluminum alloy: with high hardness and density has low harmonic vibration point and high damping; Antiskid rubber: absorbing vibration and achieve higher quanlity of listening pleasure, improve sound clarity, stereo imaging and bass response
• Design: CNC Machined and spring isolation stand feet is easier to install, no need to make holes and no need to use double-sided adhesive to avoid damaging your equipment. Espeically it's convenient for you to adjust load bearing by moving or adding springs which can make sound feeling different
• Function: Using isolation stand feet is to suspend acoustic feedback from your speakers or sub-woofer isolation for vibration. The tones will be more focused, lighter and with less noise. It can also avoid much of the vibration that may disturb downstairs.
• Advantages: it has high attenuation characteristics which can keep low quantity sense and raise high frequency line feeling and simple sense.
• Applicable objects: speakers, amplifiers, instrument, turntable, CD/DVD players, recorders, DAC and other equipments
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Features

• Wired and wireless audio inputs: with stereo RCA/3.5mm AUX audio input and microphone pick up, work well with most audio devices such as phone, computer, CD players, or speakers etc., very suitable for home/office/studio to dynamically decorate your auditory feast.
• Excellent sound and free settings: with 100K high-impedance input circuit, ensuring clean sound without any audio rendering when using line inputs. The color and light level of backlight also can be adjusted freely, perfectly match with different styles of audio device and environments.
• Advanced AGC algorithm and better display: AGC ensures ideal visual effects even the input signal is in a small to large range, avoid that no display when input low signal and display in full screen when input high. With gain adjustment even can set the swing range of pointer, easily to control most input signals and achieve better beating effects.
• Attractive looking and powerful design: all metal case with CNC machined panel, solid stepless adjustment knob, all interfaces are gold-plated to ensure the tight connection, ensures the smooth transmission of the original audio signal and minimizes the loss of the signal during transmission.
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Features

• With USB (type-B) input and TOSLINK optical / coaxial /HDMI 12S output(can output at the same time), can work well with DAC, preamp, amplifier or speaker. Adopting XMOS XU208 chip solution, with 1000MIPS random access memory much higher than U8 (500MIPS), and more stable than Italian Amanero solution and coaxial output supports DSD DOP.
• Output interface with DSD ON function can match the decoder that needs DSD ON signal to decode DSD songs, supporting 44.1K-384KHz/16-32 Bit sampling rate and DOP DSD256 at highest, better signal process brings higher sound quality.
• High-quality components are used to ensure better performance, such as ultra-low noise LDO regulated power supply, LVDS differential chip, gold-plated coaxial interface, OS-CON solid capacitors and Panasonic FC filtering and decoupling capacitors, the contact internal resistance is smaller and the data transmission is more reliable.
• USB interface can be used as signal input and power input at the same time, and with external DC 5V input (with priority) that can be powered by phone charger or power bank, easy to enjoy HiFi music any time and any where.
• Mini size with exquisite design, with PCM and DSD indicator easy to show the output format, black aluminum alloy cases look more cool and fashionable, very suitable for desktop audio device to use.
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Features

• Universal Compatibility: Designed to test cathode current in a wide range of vacuum tubes including EL34, KT88, 6L6, 6V6, 5881, 6550, KT66, KT100, KT120, and 7027 (CT1-P), ensuring precise measurements for various amplifier setups.
• Easy-to-Use Interface: Featuring a straightforward procedure, simply insert the probe, connect the multimeter, and obtain accurate readings in milliamps. No complex setup required, making it user-friendly for technicians and hobbyists alike.
• High-Quality Construction: Crafted with a durable copper body for superior conductivity and a ceramic socket with gold pins for reliable and long-lasting performance. The 23cm tube socket cable provides flexibility during testing.
• Direct Reading in mA: Get a clear, direct reading of the bias current in milliamps with your multimeter set to the mA range, allowing for quick and efficient testing without the need for conversions or calculations.
• Comprehensive Package & Customer Support: Each purchase includes a fully assembled cathode current probe ready for immediate use.
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Features

• Authentic Vintage Sound Experience: Elevate your music listening with the Douk Audio T9, featuring two 6E2 vacuum tubes that offer a dynamic signal level display through the magic eye and two 6A2 tubes known for their warm, natural, and full-bodied sound. Enjoy the pure and bright color display with adjustable backlights in cold green or warm orange for an immersive audiovisual experience.
• Versatile Input Options: The T9 preamp is designed to cater to a variety of audio sources. With both Phono (supporting both MM and MC cartridges) and RCA inputs, you can easily connect your turntable, phone, tablet, PC, or MP3 player. The preamp effortlessly converts phono signals to line level, ensuring clear and noiseless audio output.
• High-Quality Headphone Output: The T9 includes a dedicated 3.5mm headphone jack with an independent headphone amplifier circuit, capable of driving headphones within the impedance range of 16-300 . Fine-tune your listening experience with the adjustable treble and bass controls for a more delicate and smooth sound with exhilarating highs and profound lows.
• Sturdy and Elegant Design: Crafted with a robust all-metal case and CNC aluminum panel, the T9 not only offers superior shielding against external interference but also presents an attractive aesthetic. The solid knurled knobs and gold-plated I/O interfaces ensure a tight and smooth transmission of the original audio signal, minimizing signal loss and providing long-lasting durability.
• Plug-and-Play with Ease: The T9's pluggable tube socket design allows for easy replacement with different tube types such as 6K4, EF93, 6BA6, W727, etc., giving you the flexibility to customize your sound signature and enjoy a variety of tube sounds. Included with your purchase is a DC12V power supply, comprehensive manual, and all necessary components for seamless setup and enjoyment.
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Features

• Dual-Mode Functionality for Sound Comparison: Elevate your audio experience with the Douk Audio VU102, featuring two operational modes (2-IN-1-OUT and 1-IN-2-OUT) that allow you to conveniently compare the sound quality of two pairs of speakers or two power amplifiers without the hassle of constantly changing cables.
• Stunning VU Meter and Remote Control: This premium amplifier comes with a large, 72*32mm VU meter that enhances the audio environment with dynamic visual effects, perfect for immersing yourself in high-fidelity music. The included IR remote control offers the convenience of adjusting settings from a distance, making operation effortless.
• High-Power Support and Compatibility: Engineered for performance, each channel of the VU102 can handle up to 200W, with a fully isolated design ensuring independent ground connections to prevent mutual interference. It's compatible with a wide range of amplifiers, including BTL, Class A, Class B, Class D digital, and tube amplifiers.
• User-Friendly Design and Protection: The Douk Audio VU102 is powered by a USB 5V (Type-C) connection and includes built-in protection for both amplifiers and speakers. Its sleek black case, vintage-inspired VU meter, and clear indicators blend style with functionality, making it a perfect fit for various audio setups cherished by audiophiles.
• Safety and Convenience: While the 1-IN-2-OUT mode allows two pairs of speakers to work simultaneously, the 2-IN-1-OUT mode does not support two amplifiers operating at the same time to prevent damage. Switching channels may produce a brief loud noise, which is normal.
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Features

• For resonance vibration, stabilizing rotational speed; Lowers Noise Floor Significant
• Provides Pure Signal Retrieval; Gives Realistic Sound Reproduction
• Improves Stereo Image and Focussing; Stabilizes Sound Image
• Gives Improved Signal when Burning Quality CDs from LPs
• High quality Zinc Alloy and weighs 230 g / 0.51 lb
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Features

• VU56 PRO is the original and upgraded music spectrum designed by Douk Audio. 56 bit in per channel, 112 bit stereo display, ultra-high resolution, easily to see the music level status in real time, every slight change of sound can be shown visually, with much kinds of display effects to dynamically decorate your listening enjoyment.
• Two display mode, PPM (peak programmed meter, 0dB=1.5Vpp) and VU (volume unit, 0dB=0.775Vrms) mode, to satisfy different display requirements. The color of main bar and peak LED can be switched green or red freely, and it also supports 8 kinds of display effects to get much fun and higher play-ability.
• Unique and attractive design, besides MIC pick-up, VU56 PRO also can be used as an audio converter / splitter with its RCA and 3.5mm AUX inputs and outputs. All interfaces are gold-plated to ensure the tight connection, effectively reduce the sound transmission loss, provides both visual and auditory feast.
• With full function remote control, all settings can be easily adjusted from the distance and will be saved even shutdown. Powered by USB 5V, convenient to use at home desktop / office / studio etc., and the power is only for reading the sound signal to the display main board but nor affect the sound quality.
• Proper size with exquisite appearance, cool aluminum CNC black case, solid and durable. Multi-function settings, meet all usage requirements. 112-bit LED indicators and switchable color design look amazing and dynamic, can compatible with most common audio devices and perfectly match with a variety of usage scenarios.
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Features

• NS-10G is the upgrade version of our popular NS-01G. It is a 100W Bluetooth power amplifier for 3~8 inch 2.0CH home speakers.
• Support AUX / Bluetooth / USB inputs from various audio devices like phone, TV, Blu-ray player, PC computer, CD player and so on.
• Bluetooth 5.0 can ensure stable wireless transmission (around 30ft). USB port can be used as a computer sound card. No driver needed and easy use.
• With Bass/Mode key. Short press to conveniently switch among different inputs. Long press to choose different sound effects (in Bluetooth mode).
• Super mini size with powerful drive. Clear HiFi sound with no background noise.
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Features

• Can generate the corresponding 50/60HZ frequency flash source according to the frequency of household power supply 50/60HZ, almost suitable for being used in all countries in the world.
• Used with the tachometer disc in the package to adjust the speed of your record player to the most accurate position and ensure the most accurate sound output.
• The strobe light uses 12VAC power supply, and the ultra-low voltage is used to ensure that you are protected from electric shock during use, and it is safe and effective.
• 3W high brightness LED output, can be used in any environment. Whether day or night, indoor or outdoor.
• Small size, easy to use and convenient to collect. Prompt and courteous customer service.
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Features

• High-Fidelity Sound with ESS9038 Chip: Elevate your music listening experience with the Douk Audio C100 PRO, featuring an ESS9038 decoding chip that delivers ultra-low distortion (0.0005%) and an impressive signal-to-noise ratio (SNR) of 119dB. This high-quality chip ensures that your music is played back with incredible clarity and detail, surpassing the sound quality of traditional CD players.
• Advanced Bluetooth Connectivity: Enjoy the convenience of wireless audio streaming with the CSR8675 Bluetooth chip, which supports APTX-HD/LDAC protocols for 24Bit/96kHz high-definition, lossless transmission. This feature allows you to seamlessly connect your smartphone, MP3 player, or computer to the C100 PRO, ensuring that you can enjoy the best sound quality from your favorite tracks.
• Versatile Input and Output Options: The C100 PRO offers a variety of input options, including Bluetooth 5.0, Optical, USB, and SD card, ensuring compatibility with a wide range of audio devices. It also features multiple audio outputs such as S/PDIF coaxial and optical digital outputs (up to 24bit/192Khz/dop64), RCA, and balanced XLR outputs, allowing you to connect to your preferred audio system for an unmatched Hi-Fi experience.
• Support for Multiple Audio Formats and Languages: With the ability to play 32Bit/768kHz high bit rate WAV digital audio streams and various music formats including ISO, DFF, DSF (up to DSD512), and DTS, the C100 PRO caters to every music lover's needs. It also supports 8 languages (Chinese, English, French, German, Japanese, Vietnamese, Spanish, Russian), making it a user-friendly choice for audiophiles worldwide.
• Compact Design and Intuitive Operation: The C100 PRO's mini size and user-friendly design set it apart from traditional, bulky audio players. The 2.4-inch OLED screen provides clear and detailed information on the working status, while the touch button and remote control ensure that navigating through the player is a breeze. The retro VU meter with its warm light adds a dynamic and stylish touch to your audio setup.
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