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When purchasing a product, price is the consumer's primary concern. At present, KGUSS has 83 products for sale. KGUSS products range in price from $15.99 to $599, and the average price of all the products is about $182.45.

We found that most of the KGUSS products are manufactured by TOPPING, FX-AUDIO-, and xDuoo. The manufacturers provide KGUSS with a steady supply of products, and they have a good cooperative relationship with each other.

You can confidently purchase KGUSS products from the seller HIFI College. The brand holds an average rating of 4.2, testifying to its excellent reputation.

KGUSS Best Sellers

Last Updated: Jan 12, 2025

KGUSS Mini Audio Component Rack Black Acrylic 2-Layer Rack Aluminium Holders Small Desktop Rack for HiFi Audio Equipment dac Amplifier Amp (Black)

Audio Component Amplifiers

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Suitable for Most Small Amplifiers The Shelf can fit and suitable for most small HiFi amplifiers, headphone amps, DAC decoders etc.

Large Weight Capacity Mini design but with large weight capacity about 3kg, can store 2 amplifiers or headphone amplifiers.

2 Layers Design More Stable The shelf with 2 layers can store 2 amplifiers, space-saving keep your table more clean and tidy. Stable design keep your amplifier safe all the time.

Easy to Install Quickly Just install in minutes by yourself, easy and time-saving, round edge corner design to keep you and your amplifier away from scratch. NOTE: Each acrylic panel is covered with layers of protective film on each side, To obtain a clear Acrylic Rack, just peel back the protective films.

Durable Material and Fashion Outlook Durable Acrylic boards and Aluminium Alloy holders make it a fashion look, decorate your amplifiers. All the acrylic boards come with the protective cover without scratch.

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Topping DX3pro+ LDAC Headphone Amplifier - ES9038Q2M XU208 NFCA Bluetooth5.0 Audio Decoder USB/Opt/Coax DAC AMP Pre Amplifier with Remote Control (Black)

Audio Component Amplifiers

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High-end audio - TOPPING DX3 Pro+ DAC is a high-performance DAC with USB, optical fiber, coaxial, Bluetooth input, Line Out, and headphone amplifier output.

About Topping DX3 Pro+ - Equipped with the latest QCC5125 chip, it supports LDAC / AAC / SBC / APTX / APTX LL / APTX HD protocols. It uses the ES9038Q2M decoder, supports high-resolution music transmission, and can be played back with clear sound.

Bluetooth 5.0 - Connect the Bluetooth of the phone, tablet or notebook to DX3Pro+, and connect the power amplifier, active speakers or headphones to the DX3Pro+'s output, then DX3Pro+ becomes your Bluetooth Headphone amp 1 Bluetooth DAC. You can easily enjoy the high quality music and convenience brought by Bluetooth 5.0. If your device supports LDAC transmission, you will get even better experience.

High performance DAC for media player - Whether it is Apple IOS device, Android device and media player, as long as it supports OTG external sound card, it can be connected to the USB input of DX3Pro+ to make DX3Pro+ be their external high performance DAC.

DAC+Pre-amplifier application - TOPPING DX3Pro+ has a simple Pre amp function that you can use to adjust the volume. The digital volume ad- justment will not has any imbalance between the left and right channels.

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FX-Audio DAC-X6 Mini HiFi 2.0 Digital Audio Decoder DAC Input USB/Coaxial/Optical Output RCA/Headphone Amp 24Bit/96KHz DC12V(Silver)

Headphone Amps

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Unique Design: Compact and adaptable, connect to active speakers via RCA to improve sound quality, or for use as a powerful headphone amp.NOTICE:DAC-X6 volume adjustment only works on headphones. Headphone and RCA output will emit sound at the same time when the DAC-X6 is working. You can turn off your active speakers or amplifiers according to your needs

A variety of input and output modes: The amps can be PC-USB, optical fiber, coaxial three inputs, can be connected to TV set-top box, DVD, DCD; output mode has RAC, 6.35mm headphone port 2, can be connected to power amplifier, tube vacuum amp, active speaker

Chipset: The mini amps chip uses TPA6120A2+LM4562NA+SA9123+CS4398+CS8416 to provide strong guarantee for tone input and output.

Efficient protection and long life: The audio decoder uses LM4562NA special op amps specially designed for audio. The op amp can be freely replaced and upgraded. At the same time, a relay protectors may protect the headphones and speakers.

Perfect for Music and Gaming:When you use it for music, it can bring you fantastic music enjoyment.DAC-X6 also is really good for FPS gaming.Can use it with dolby atmos and the directional sounds perfectly

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KGUSS Mini Active Volume Control Knob Volume Controller 3.5mm Audio Adjuster PC Speaker Amplifier Switcher,Volume Control Knob Speaker Audio Adjuster for Win10/8/7/Vista/XP/Mac KL

Audio Component Amplifiers

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High Performance This volume controller uses a step potentiometer (50K), and inside is a PCB integration board, which allows for fine adjustment. High fidelity wired transmission, no power supply required. Recommended for those who want intuitive and simple volume control without concern for sound quality!

3.5mm Input and Ouput You can connect players with 3.5mm output or RCA output. For example: Cell phone, computer, MP3, DVD, Nintendo Switch can be connected to a PC display. You can connect to amplifiers or active speakers with 3.5mm jack or RCA jack input. For example: power amps, DACs, headphones, active speakers.

Strong Construction Build in aluminium CNC chassis, made of metal shell and ALPS rotating shaft，looks nice and durable. High quality shock-absorbing pad is used on the bottom of the volume controller to prevent slipping.

Plug and Play No need to install any driver or software on your PC to drive this volume controller, it will work once you plugging on the device; The volume adjuster directly adjusts your Windows volume which won't cause distortion and noise.; If you use it with an OTG cable, it can also be used with mobile phones.

Wide Applications The best volume controller for watching videos, playing games, and even various events, weddings, celebrations, conferences, shows, etc.

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KGUSS Topping G5 Portable NFCA Headphone Amplifier DAC - USB Type C/Bluetooth/AUX Input, 6.35mm Line Out 3.5mm/4.4mm Headphone Out LDAC Hi-Res Audio (Sliver)

Headphone Amps

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Portable beats desktop Portable beats desktop. G5 integrates a USB DAC, a Bluetooth DAC, a NFCA headphone amplifier into a portable volume.

Plug and play G5 has a wide range of compatibility: Windows 10 or above, MAC, Linux, IOS, Android can be plug and play. G5 uses 2nd generation XMOS, USB supports up to PCM32bit768kHz and DSD512 native. The G5 has a built-in 4000mAh battery so that it does not need to reply on the power supply of the mobile phone like other portable DAC/AMP, so it will not reduce the battery life of the mobile phone.

LDAC 24bit96kHz G5 has the certification of Hi-Res Audio Wireless and LDAC. It uses newest QCC5125 chipset to support LDAC/AAC/SBC/APTX/APTX LL/APTX HD/APTX Adaptive protocol.To get even better sound quality from Bluetooth, we abandon the built-in DAC of QCC5125 and connect its digital signal to ES9068AS to decode. After pairing the G5 with mobile phone/player/tablet by Bluetooth, the headphone is free from the cables. It is not a burden to put the G5 in your pocket, bag, or desktop.

Suitable for almost all kinds of headphones G5 provides 3 step gain settings, so that high-sensitivity or low-sensitivity headphones can obtain a comfortable gain range; the output level as high as 21Vpp and the output power of 175mW under 300Ω load are enough to drive high impedance headphones; The

Built-in NFCA Headphone amp The G5 uses an NFCA module specially modified for portable devices, which can achive large output, low distortion, and good battery life. It pairs with high sensitivity IEMs and power hungry high impedance headphones nicely.

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KGUSS Topping HS02 USB2.0 Audio Isolator withstands up to 1500VDC, USB-B and Type-C Input, USB-A and Type-C Output, Compatible with PCM32bit 768kHz DSD512

USB Cables Printer Cables

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Fully Isolated Design The HS02 has a fully isolated design, which does not introduce new interference when the auxiliary power supply is used while the audio signal is isolated from ground loop interference. Say goodbye to the ground loop and hum.

Switching between two interfaces The HS02 has two input interfaces (including a USB-B and a Type-C) and two output interfaces (including a USB-A and a Type-C), either of which can be selected by an input switch or an output switch. Note: Input is used to connect to the computer, output is used to connect to USB devices.

High speed is also highly compatible HS02 supports automatic identification of USB2.0 transmission at low speed, full speed, and high speed. The powerful transmission capability is compatible with high resolution audio such as PCM32bit/768kHz and DSD512 Native.

Ultra Low Latency The Latency is only 0.073us, which fully meets hifi and professional applications' needs.

Effectively eliminate the noise introduced by the ground loop The noise can be reduced by up to 50dB in real world measurement.

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KGUSS T5PRO Tube Preamp Headphone Amp - Bluetooth 5.0 Vacuum Preamplifier with Treble and bass Adjustable for HiFi Stereo Home Audio Active Speakers with RCA/SUB Output

Audio Component Amplifiers

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True Tube Amplification T5PRO tube pre amp Adopting 6N3 vacuum tube, the music presents richer sense of hierarchy and more delicate sound quality. The preamp function provides you with pure and lossless audio signals, bringing you a high-quality music experience.

Bluetooth 5.0 Adopt QCC5125 bluetooth chip,it brings more stable connection experience supporting LDAC 24Bit/96kHz,it achieves higher quality music transmission. Chipset: STM8S + ESS9018K2M + CM6642 + OPA1612 + OPA5125.

Versatile Connectivities The T5PRO provides USB/OPT/RCA/BT inputs and RCA/SUB OUT/6.35mm headphone outputs. Can be connected with most devices: computer,tablet,mobile phone, MP3,TV,cD,etc for high-fidelity connection, to achieve lossless audio transmission,enjoy HIFI sound quality. It can help create a 2.1-channel audio system by connecting active speakers/an amplifier and a subwoofer.

A Headphone Amplifier, also a Power Amp Built-in independent headphone amp line out,designed for headphone users. Maximum output power 2X300mW@32Ω for different impedance headphones. A rich bile flavor headphone amplifier; meet your various needs, bring a different experience.

Treble and bass independently adjustable T5PRO has the function of independent adjustment of treble and bass which can be adjusted freely according to your audio device. It provides a high-performance on HiFi sound to meet different music styles.

What You'll Get KGUSS T5PRO Tube Preamplifier x1, User Manual x1, 6N3 Vacuum Tube x2, 12V Power Supply x1, a 24-month worry-free warranty and responsive customer service.

High Quality CNC polished all-aluminum black body. A perfect blend of superior cooling performance and exquisite aesthetics. Designed with four anti-slip pad at the bottom,it can be placed on the desktop without slipping.

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Topping D10s Mini USB DAC CSS XMOS XU208 ES9038Q2M OPA2134 Audio Amplifier Decoder Sliver

Audio Component Amplifiers

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Compatible with DSD256 and PCM384 - D10s is compatible with 16-32bit/44.1-384kHz and DSD64 - DSD256(support both Dop and Native)If you need a DSD configuration guide, please contact the seller HIFI COLLEGE

XMOS XU208 and Customized Driver - D10s use XMOS XU208 for USB interface and use customized driver which from Thesycon for better compatibility with high resolution audio file especially DSD native.And use ESS ES9038Q2M to make THD+N as low as 0.0002%@1kHz

Automatic Power On/Off - Although the USB port support power after PC has shutdown,D10 still will synchronously power on/off with PC

Replaceable OP - It has OP amp socket,DIYer could change the OP amp to get different sound.Notice:D10's electrical parameters will change if use other OP

Multiple Applications - Connect D10s to your active speakers.D10s Provide not only DSD and higher-specification PCM compatibility but also a better sound quality than your computer's built-in sound card or a regular DAC;You can connect D10s's line out to your amplifier/headphone amplifier's input to make D10s one part of your HIFI system；You also can connect D10s's coaxial/optical output to your DAC, then D10s serve as a USB interface

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KGUSS Topping A70Pro Fully Balanced Headphone Amplifier Preamp - 17000mWx2 Output Power, 2 Gain, R2R Relay Volume Control, Full Color Dispaly HiFi Audio Support Extensions(Silver)

Headphone Amps

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T'ang-ku-la Module The T'ang-ku-la Module uses a new three-stage feedback circuit. Further reducing noise and high frequency distortion, making the dynamic range rise to an unmatched 147dB new realm. The new technology greatly reduces heat generation, thus greatly improving reliability, extending electronic component life, and reducing thermal noise.

Ground Loop Noise Disappearing magic When multiple devices are used in combination, ground loop noise may be encountered. A70 Pro adds a GND/LIFT switch, when ground loop noise is encountered switch to LIFT and the noise will disappear.

Relay volume control A70 Pro uses relays and resistor networks to form R2R volume control module, which provides precise volume control, long service life, and will not deviate even at low volume.

A Headphone Amp, also a Preamp The A70 Pro drives headphones well, and it can also be used as a preamp. It has the same high performance as the headphone amp mode, with an RCA output impedance of only 50Ω and an XLR output impedance of only 100Ω, allowing it to be used with a wide range of input impedance for various power amplifiers. In addition, a full-featured remote control makes operation even easier.

Expandable inputs The A70 Pro has one set of balanced XLR and one set of single-ended RCA inputs. But with the Ext90 input expansion, you get a total of four balanced XLR and two single-ended RCA inputs.

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KGUSS Topping A30 Pro NFCA Headphone Amplifier SE Balanced XLR 4.4mm 6.35mm Output 6000mW x 6000mW Balanced Headphone Amp for D30 Pro (Black)

Headphone Amps

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4-Pin-XLR+4.4mm 6.35mm output Since then, buying headphones does not have to consider whether the plug matches the headphone amplifier,because the A30Pro already provides you all in a compact body,including 4-PIN XLR,4.4mm,6.35mm.

SE+BAL input pass through When shutting down, the input signal is directly output to RCA or TRS without amplification, which will be more suitable for active speakers/monitor speakers when the DAC has pre-amplifier functions. Even better is when used with D30Pro, the excellent noise performance of D30Pro is not wasted.

Say good bye to the ground loops noise When multiple equipment are used, RCA connection may encounter ground loop noise A30Pro introduces a GND/LIFT switch as the solution. When in normal use,set it to GND; when encountering ground loop noise,switch to LIFT to change the ground point of the A30Pro from the it's chassis to other equipment which it connected to.Ground loop noise disappeared."

Incredible output power The new specifically redesigned NFCA based circuit is optimized for terrific single ended performance . Huge output power and margin bring excellent control ability, and there are no more headphones hard to drive.

D30Pro is the best DAC for A30Pro 4 x CS43198, sound of quad DAC. THD+N

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KGUSS DAC-K3 PRO USB DAC Headphone Amplifier Mini HiFi Optical/Coaxial/USB DAC Decoder Audio 24Bit 192KHz DA Converter ESS9018K2M Decoder Multifunctional Preamp Desktop Amplifier (Sliver)

Signal Converters

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It is both"a headphone amplifier"and"a preamp" The DAC-K3 Pro is not only a professional headphone amplifier, but also a pre-stage. When used as a pre-stage,it can also play the same excellent performance. It can be widely used with power amplifiers or active speakers.This is a great choice for your first USB-DAC!

High-performance Chips: TPA6120A2+LME49720AN+NE5532+ES9018K2M+SA9123L. TPA6120A2 is a high-fidelity audio power amplifier based on current feedback architecture.Its distortion far exceeds that of many op amps that only process small signals. The operation amplifier LME49720AN three sections are balanced and very thick,the dynamic and low frequency strength and quantity sense is very good, the sound field is broad,the high frequency to go is very smooth.The sound is pure and real.

Wide Compatibility--Various Inputs Supported The unit supports PC-USB（Can also be connected to a cell phone）, fiber-optic, coaxial, and other digital audio inputs. In addition, it is widely compatible with Windows XP/W7/W8/W10/MAC/Linux, etc. Note: Depending on the PC, the driver may not install automatically, please contact our customer service.

HPA/PRE automatic switching When the DAC-K3 PRO is not connected to any headphones, it automati-cally works in the preaplifier mode,and the amplified signal is output from the RCA on the back panel. When the headphone is connected to 6.35mm or 3.5mm output,DAC-K3 PRO automatically switches to the headphone amp mode,and the signal is only output to the 6.35mm and 3.5mm jack.

Package Contents & Quality Warranty Accessory: DAC-K3 PRO main unit, power cable, USB cable, instruction manual, and quality warranty card. 1-YEAR warranty: Please contact us for more information.

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FX-Audio DAC-X6 MKII Bluetooth 5.0 Digital Audio Decoder DAC 24-bit/192kHz USB/Coaxial/Optical Headphone Amp Mini HiFi Pre-Amplifier Black

Headphone Amps

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Unique Design: Compact and adaptable, connect to active speakers via RCA to improve sound quality, or for use as a powerful headphone amp or Pre-Amplifier Receiver .DAC-X6 MKII volume adjustment works on headphones and speakers

A variety of input and output modes: Headphone amplifier can be PC-USB, optical, coaxial，bluetooth four inputs, can be connected to TV set-top box, DVD, DCD; output mode has RAC, 6.35mm headphone port 2, can be connected to power amplifier, tube vacuum amp, active speaker

Bluetooth 5.0 Function: Bluetooth headphone amplifier is an all in-one digital decoding.Bluetooth headphone amplifier is compatible with all Bluetooth devices, including smartphones, laptops, HiFi players and so on

Chipset: The mini amplifier chip uses DAC IC(ESS9018) and USB IC(CM6642) to provide strong guarantee for tone input and output.efficient protection and long life,The audio dac amp uses TPA6120 and OPA2134 two special op amps specially designed for audio. The op amp can be freely replaced and upgraded. At the same time, a relay protectors may protect the headphones and speakers

Perfect for Music and Gaming: When you use it for music, it can bring you fantastic music enjoyment.This DAC amp also is really good for FPS gaming.Can use it with dolby atmos and the directional sounds perfectly.Noise and interference are eliminated to the maximum extent possible, the signal-to-noise ratio and dynamic range are expanded, and the true natural sound is highly reproduced

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FX-Audio DAC-X3PRO USB DAC ESS9023 Headphone Amplifier CS8416 Support ASRC Transmission HiFi Portable Decoder Headphone Amp

Headphone Amps

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[Headphone Amplifier] DAC-X3 PRO add OP Amp diffuser circuit, that maintain sound quality of original circuit, increase driving force and reserve gain interface,greatly improve playability.

[ASRC Transmission] Adopts USB ASRC transmission technology,support smartphone OTG directly drive.Sampling rate up to 24Bit/96kHz. DAC-X3PRO is a cost-effective audio decoder dac converter and headphone amplifier with USB ASRC transmission.

[USB Power Supply] Adopts USB power supply adaptive technology. Inserted separately USB cable, it can be automatically converted to USB power supply for the whole machine. It also can supply power directly from DC socket to meet your higher demand.

[Support Smartphone OTG Drive] Support smartphone OTG drive, it can meet to listen HiFi music anytime and anywhere.DAC-X3PRO is a high-performance decoding headphone amplifier for mobile phone/desktop/DVD/CD/TV.

[High-Class Components] USB dac adopts PCB board which uses black immersion gold craft and high-class electronic components, such as classical CS8416,USB ASRC audio processing IC and DAC decoder IC ESS9023,headphone amp protection circuit,as well as power electronic filter magnetic ring to reduce switching power supply noise.

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Topping PA3S Power Amplifier MA120702 x 2 Class D Fully Balanced Single Ended AMP 80W x 2 RCA TRS Stereo Home Audio Amplifier (Black)

Audio Component Amplifiers

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2xMA12070 Fully balanced Class D amplifier - Each channel of PA3s uses one MA12070 Class D power amplifier chip. This allows separation in layout improving performance and reducing crosstalk. The power is shared across two chips, the heat dissipation is also halved for each chip, improving reliability and extending the lifespan of the product

High output power - PA3s could output 80W x2 at 4ohm load, 10% THD+N. In higher standard of THD+N of 1%, output power will be 65W x2 at 4ohm load. The output power is enough to drive any bookshelf speakers and even some floor speakers

Balanced + Single -ended inputs - PA3s provides TRs balanced input and RCA single -end- ed input. The use of balanced input eliminates potential ground loop problems giving the pristinely clean audio without any hum.Two inputs are selectable using front panel button. P A3s will remember the input selected when it was turned off.

"Comfort zone" with lowest distortion - The lowest THD+N of PA3s is in the range of 10-20W output, which happens to be the power range commonly used for listening to music. Everything is just in the rightcondition

Wider Use - With the help of a DAC, the function is expanded toa greater extent PA3s can be used with a DAC to expand the categories of digital inputs; if used with a DAC+HPA, more comprehen- sive functions can be achieved.

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Topping DX1 Mini Stereo DAC Headphone Amplifier Combo - 280mW x2 Powerful Output Two-Stage GAIN Switch USB Chargable Discrete LNRD AK4493S XU208 384kHz/32bit Native DSD256 HiFi Home Audio (Black)

Audio Component Amplifiers

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Newest 32bit-AK4493S DAC chip The DX1 uses the newest sub-flagship AK4493S chips of AKM's VELVET Sound technology. The DX1 decodes up to 32-bit/384kHz PCM in a stunning 120dB of dynamic range.

Powerful Output for IEMs and Full-size headphones With high/low gain options and two outputs (6.35mm and 3.5mm), the DX1 is ready for IEMs, full-size headphones, and everything in between. Despite its small size, it can output up to 280mWx2 @32Ω and 51mWx2 @300Ω of power.

Plug and Play DX1 has a wide range of compatibility: Windows 10, Windows 11, MAC, Linux, IOS, Android can be plug and play, don't need to install a driver. ( Except Windows ASIO applications)

Discrete LNRD The Discrete LNRD circuit filters out the noise and interference of USB 5V power and provides stable and clean power supply of ultra-low noise reference level for DX1. With this technology, the noise of the DAC part is lower than 2.0uV, and the noise of the AMP part is lower than 1.0uV. Even high sensitive IEMs will not be bothered by noise.

Pure DAC Function DX1 has Line out with fixed volume, which can be used as a pure DAC with headphone amplifiers, power amplifiers and other devices.Note, please consider the following information before deciding to add to cart. 1. DX1 does not use nfca module 2. The volume of line out is fixed at the maximum and cannot be adjusted 3. The headphone amplifier output and the line output will come out simultaneously

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xDuoo DT-01 HiFi Phone DAC Pre-Amp Player Transforms Dock, Turntable for Phone Convert Output Coaxial/Optical/Aux Audio to decoder or Amplifier

Digital to Analog Converters

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Convert USB Audio from Phone Because it is easier to get current pop music from mobile phones or tablets,we use mobile phones as digital turntables to output coaxial/Optical/analog signals to various high-end decoders / amplifiers / active speakers as high-quality sound sources. It support up to PCM32Bit/384kHz,DSD256. With a top-tier DAC chip, a smorgasbord of outputs, and even a built-in phone charger, it's the musical upgrade your phone has been waiting for.

Charing the Phone It has a charging switch,and you can choose to charge your phone when it is working or turned off, to solve the problem of battery life.

Colorful Indicator Lights It has colorful lights to indicate the song sampling rate,Let you to know the format of the song being played in real time. Blue is 44.1-48kHz, purple is 96K-384kHz, and white is DSD64-256.

Coaxial/optical output With coaxial and optical outputs, the xDuoo DT-01 supports up to PCM 24bit/192kHz and DSD64 (DoP), connecting to various audio decoding devices with ease.

USB Output The audio signal come from the phone,but the USB power supply comes from the DT-01, so it does not consume the phone's battery and saves power for the phone. If you want to bypass the DAC chip, just use the USB output to send the signal straight to another DAC.

Pre-Amp for convenient control The volume of Aux out can be controlled by the volume knob, so it is very convenient because it no longerneeds to adjust the volume of the speaker.

Heaphone Output up to 350mW It has a headphone port to avoid affecting others'rest when listening to music at night,and you can use headphones to enjoy wonderful music. The output power of it can be up to 350mW, so it can to easily driving many types of headphones.

AUX OUT It used Es9038Q2M as DAC chip,output excellent analog signal,supply high quality audio to power amplifier or active speaker.

Aluminum alloy shell The shell is made of high-strength aluminum alloy, high-grade atmosphere, and can effectively shield from external noise.

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FX-Audio Tube-02 Pro Tube Headphone Amplifier, Vacuum 5725 Tube Preamp, Mini Hi-Fi Integrated Stereo Class A amp Supports 32-600 ohms of Headphones, for Stereo Amplifier/Active Speaker

Audio Component Amplifiers

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TUBE-02 PRO is a Class-A tube headphone amp,which uses 5725 tubes to amplify signal.It has a strong tube flavor,fine tone,and high performance,bringing extremely high-quality listening experience

Adopt transistors for class A buffer,strong output power can easily drive any kind earphones,,output power up to 850mW.And audiophile-grade coupling capacitors is adopted to td the sound more sweet and transparent

Has two sets of line outputs,through the tube.The design is novel, and the variant amplification of internal transistor and electron tube is processed by tube output,which solves the trouble of plugging in and out when enthusiasts use multiple sound sources

It can be used as the Pre-amplifier of all kinds of audio amplifier , active speaker or phono/turntable, and improve the sound quality of audio amplifier or active speaker.The black frosted texture looks simple and elegant，makes it fashionable and attractive, bringing wonderful auditory and visual enjoyment, very suitable for home and desktop audio system

With high gain mode, the gain can be increased by +2.5dB. The tube can be replaced by 6J1, 6J2 tubes freely (other models are temporarily incompatible),adding much fun and higher playability

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KGUSS Topping A90 Discrete NFCA Headphone Amplifier Preamplifier 6.35mm/4.4mm Balanced/4-Pin-XLR Headphone Output R2R Relay Volume Control (Silver)

Headphone Amps

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Fully discrete NFCA also create wonderful amp A90 Discrete uses fully discrete components to redesign the NFCA (Nested Feedback Composite Amplifier)module. 4 built-in NFCA-Discrete modules which each them uses 39 transistors build up fully balanced structure. The optimized Voltage Current hybrid feedback architecture along with UHGF (Ultra High Gain Feedback) technology provide excellent DC and AC performance.

High output voltage, high current, low output impedance, no headphones that can't be dealt withHigh output voltage can easily drive high impedance headphones; High output current allows low-sensitivity headphones to obtain enough power; The low output impedance will not bring unnecessary effect on FR when driving low-impedance headphones. Different headphones can be easily driven by the A90 Discrete.

2 Gain settings The A90 Discrete has two gain options, which are enough to cover a wide variety of headphones: low gain to drive the IEMs with high sensitivity, and high gain to drive full-sized over-ears. Combined with the 0.2uVrms ultra-low noise, even sensitive lEMs will not suffer from any noise.

Ground Loop Noise Terminator Ground loop noise may be encountered when multiple devices are used in combination. A90 Discrete adds a GND/LIFT switch to solve this problem. When in normal use, set it to GND; and when ground loop noise is encountered, switch it to LIFT. Then the ground loop noise is eliminated.

A Headphone Amp, also a Preamp When it is in preamp mode, you can get the same high performance as the headphone amp mode, and the 20ohm SE and 40ohm balanced output impedance are widely suitable for various power amplifiers. A90 Discrete can not only switch between the headphone amp (only output from the headphone jack) and the preamp(only output from RCA and XLR), but also support the output from all at the same time.

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KGUSS Topping PA5 II Plus Power Amplifier 140W x 2 Class D Fully Balanced AMP TRS/RCA Input 12V Trigger Stereo Home Audio Amplifier(Sliver)

Audio Component Amplifiers

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Fully balanced structure, Pure sound quality The PA5 II and PA5 II Plus adopt a fully balanced structure and an innovative Class D amplifier circuit to achieve high power and low distortion sound output. The excellent tuning technology of engineers ensures clear, clean, deep sound, and no audible noise floor. The fully balanced structure makes PA5 II/PA5 II Plus no more hum, no more noise, no more ground loop.

THD+N as low as an excellent DAC The distortion of PA5 II and PA5 II Plus is already as good as the DAC. When outputting 5W under a 4Ω load, THD+N

High output power The PA5 II Plus is capable of delivering up to 140W x 2 for 4-ohm loads at 10% distortion, and 125W x 2 for 4-ohm loads even when the standard is raised to 1% distortion. Similarly, the PA5 II can output 100W x 2 for a 4-ohm load at 1% distortion. High output power and low distortion characteristics make PA5 II series amplifiers sufficient to meet the needs of most speakers and use occasions.

Comprehensive circuit protection It has no noise when turned on or off, and has complete protection for overvoltage, undervoltage, short circuit, overcurrent, and overheating. Even if there is an unexpected power outage, it will not generate noise,making you worry free to use.

Excellent match - E50 + L50+ PA5 II Series When you need a more comprehensive system, we recommend the combination of PA5 II series power amplifiers, E50 DAC and L50 Headphone amplifier. This way, there are corresponding devices from the digital audio source to the speaker and headphones.

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KGUSS Topping EHA5 Electrostatic Headphone Amplifier - 700Vrms Immense Power SE BAL Input 12V Trigger Interface AMP Preamp (Black)

Headphone Amps

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TOPPING EHA5 - THE PERFECT PARTNER FOR ELECTROSTATIC HEADPHONES Most electrostatic headphones have great potential, but their sound performance is limited by the performance of the electrostatic headphone amplifier. When using the EHA5 electrostatic headphone amplifier, you can better unlock the performance of the headphones and unlock more auditory details.

Outstanding noise control TOPPING EHA5 boasts an impressive 146dB SNR, ensuring that any audible noise is eliminated. With noise levels under 35uVrms @G=L and under 80uVrms @G=H, you'll enjoy crystal-clear sound without any distractions.

Impressive power output The EHA5 delivers a remarkable 700Vrms and 2000Vp-p output swing, significantly improving upon the competition. This immense power allows your electrostatic headphones to reach their full potential.

12V Trigger interface EHA5 is equipped with 12V Trigger input trigger interface, which can be linked with other devices to switch on and off without the tedious operation of turning on and off one by one.

Pass through function When the EHA5 front panel is switched off, the input signal goes straight through to the corresponding balanced and single-ended outputs. This is more suitable for switching between electrostatic headphones and other audio systems when the DAC has a preamp function.

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KGUSS FAQs

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Yes, KGUSS is a legitmate brand on Amazon. After conducting a comprehensive analysis of 587 customer reviews for KGUSS products on Amazon, we have determined its average rating. Offering great value and satisfying quality, KGUSS has achieved a respectable rating of 4.2 from many customers, showing that its products meet customer expectations. While there may have been minor issues reported occasionally, overall, it is safe to make purchases from KGUSS on Amazon.

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