Fosi Audio – K7 Desktop DAC & Headphone Amplifier with dual control knobs, LCD display, and wireless antenna for high-fidelity audio performance.
Fosi Audio K7 DAC Amp setup on a desktop with speakers and headphones, ideal for audiophile-grade headphone HiFi and immersive desktop audio.
Fosi Audio K7 features audiophile-grade chipsets including XMOS, AKM, Qualcomm, and TPA6120 for high-resolution audio and immersive sound quality.
Fosi Audio K7 DAC Amp internal circuit diagram showcasing fully balanced circuitry and ultra-low distortion for premium headphone amplification.
Fosi Audio K7 DAC Amp power regulation diagram with multiple LDO regulators ensuring clean, distortion-free sound output across all components.
Rear panel of Fosi Audio K7 DAC Amp showing RCA, USB, optical, coaxial, and Bluetooth inputs for versatile audio connectivity options.
Close-up of Fosi Audio K7 DAC Amp design features including LCD display, tactile buttons, multifunction knobs, and ergonomic build for daily use.
Exploded view of Fosi Audio K7 DAC Amp highlighting its aluminum-alloy compact design for durability and seamless integration into desk setups.
Fosi Audio K7 DAC Amp used in a gaming setup with PS5 and monitor, delivering immersive audio for enhanced gaming entertainment experiences.
Fosi Audio K7 DAC Amp connection diagram showing compatibility with headphones, speakers, PCs, consoles, and other audio sources via multiple inputs.
Fosi Audio K7 DAC Amp package contents including USB-C cable, Bluetooth antenna, power supply, Y-splitter cable, and user manual for easy setup.

Fosi Audio

Fosi Audio K7 Desktop DAC & Headphone Amplifier

Sale price₹ 18,990Regular price ₹ 30,999

PCM 384kHz & DSD256 Hi-Res Decoding via USB

USB-C, Optical, Coaxial, and Bluetooth 5.0 Input

Built-In Mic Input with Noise Reduction Support

Onboard Sound Customization via EQ Knobs

Compact CNC Milled Aluminum Casing

Powerful 3.5mm SE & 4.4mm Balanced Headphone Outputs

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Pickup available at Naraina, New Delhi

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Description

The Fosi Audio K7 is a compact, audiophile-grade DAC/headphone amplifier designed for demanding music lovers and gamers who refuse to compromise on sound quality. At the heart of the K7 lies the AKM AK4493SEQ Digital-to-Analogue Converter, supported by the high-performance XMOS XU208 USB audio interface, delivering crystal-clear, ultra-high-resolution playback for both wired and wireless sources. Its versatile input options such as USB-C, optical, coaxial, and Bluetooth 5.0 with aptX HD/LL; ensure compatibility with almost any device, while dual headphone outputs (balanced and single-ended) coupled with robust amplification empower it to drive even challenging headphones efficiently. A thoughtful addition for streamers and gamers, the K7 features a dedicated 3.5mm microphone input with built-in noise reduction, making it a true all-in-one desktop audio hub. Onboard EQ controls let you fine-tune bass and treble on the fly, and firmware updates keep the K7 future-ready.

HIGH FIDELITY AUDIO EXPERIENCE WITH AK4493SEQ DAC

The K7 sets a new standard for desktop audio with its flagship AKM AK4493SEQ DAC, capable of decoding PCM audio up to 384kHz and DSD256 for the purest digital playback. Whether you’re streaming high-res tracks online or enjoying your offline music library, the K7 delivers breathtaking detail, a wide soundstage, and lifelike dynamics. The XMOS XU208 USB controller ensures glitch-free, low-latency transmission from your PC, Mac, or mobile device, while optical and coaxial inputs cater to home audio setups. This meticulous digital foundation makes the K7 a reference-grade hub for critical listening, mixing, and mastering tasks.

POWERFUL AMPLIFICATION FOR EFFICIENT DRIVABILITY

Designed for audiophiles and headphone enthusiasts, the K7 pairs its premium DAC with a high-current amplifier based on the TPA6120 and OPA1612 chipsets, delivering up to 2100mW per channel. This robust power output effortlessly drives a wide range of sensitive In-Ear Monitors or even demanding Planar Magnetic Headphones; offering clean, dynamic sound at any volume. The 3.5mm single-ended and 4.4mm balanced outputs cater to different listening preferences and gear, while the ultra-low noise floor ensures a black background, even with the most revealing headphones.

BUILT-IN MIC NOISE REDUCTION SUPPORT

The K7 goes beyond music playback with a dedicated 3.5mm microphone input featuring advanced noise reduction which is ideal for gamers and streamers. This integrated solution eliminates the need for separate audio interfaces, letting you chat, broadcast, or record with studio-quality clarity. The K7’s low-latency USB path ensures your voice and game audio stay perfectly synchronized, while the powerful headphone amp immerses you in every detail of the action. Whether you’re coordinating with teammates or narrating your latest adventure, the K7 is built to perform under pressure.

VERSATILE CONNECTIVITY FOR EVERY SETUP

Seamless integration is a hallmark of the K7, thanks to its comprehensive array of digital and analog connections. The USB-C port supports plug-and-play operation with computers and Android devices, while optical and coaxial inputs link effortlessly to CD players, TVs, and set-top boxes. Bluetooth 5.0 with aptX HD, aptX LL, AAC, and SBC codecs enables high-quality wireless streaming from smartphones and tablets. For studio monitoring or multi-device setups, the K7’s RCA line outputs can feed active speakers or a separate amplifier, making it the versatile centerpiece of any desktop or living room audio system.

PREMIUM BUILD & DESKTOP ELEGANCE

Crafted for durability and style, the K7’s all-aluminum chassis is precision-machined for a rugged, refined look that complements any workspace. Its compact footprint (155mm × 90mm × 50mm) fits neatly on crowded desks, while the bold, angular design stands out from generic black boxes. Attention to detail is evident in the tactile knurled volume knob, glowing status display, and anti-resonant feet that minimize vibration for clearer sound. Every component feels solid and thoughtfully placed, reflecting a dedication to quality craftsmanship and a premium user experience.

INTUITIVE ONBOARD CONTROLS & CUSTOMIZATION

Tailoring your sound has never been easier. The K7’s front-panel EQ knobs let you boost or cut bass and treble on demand, adapting to your headphones, music genre, or mood. A crisp OLED display shows input, sample rate, and volume at a glance, while tactile rotary knobs and buttons provide quick access to all functions. The device supports firmware upgrades via USB, ensuring ongoing compatibility and performance enhancements. With its user-centric design, the K7 puts control at your fingertips and no external software is required.

Specifications

Brand Name
Fosi Audio
Model Name
K7
Chipset
XMOS XU208, AKM AK4493SEQ, QCC3031, TPA6120
Max USB Sampling
PCM 384kHz/32-bit, DSD256
Max Optical/Coaxial
PCM 24-bit/192kHz
Max Bluetooth
PCM 24-bit/48kHz
Headphone Impedance
16–300Ω
Balanced Output
4.4mm Pentaconn, 2100mW+2100mW @32Ω
Single-Ended Output
3.5mm, 600mW+600mW @32Ω
RCA Output
≥2Vrms
Inputs
USB-C, Optical, Coaxial, Bluetooth, 3.5mm Mic
Outputs
RCA, 3.5mm, 4.4mm
Bluetooth
5.0 (≤13m), aptX HD/LL, AAC, SBC
Noise Floor
≤2.5μV (3.5mm), ≤6.5μV (4.4mm), ≤3μV (RCA)
THD+N
<0.0002% (4.4mm), 0.0005% (3.5mm, RCA)

Box Content

    What will you get
  • 1 × K7 DAC & Amp
  • 1 × USB A/C to USB-C Cable
  • 1 × Bluetooth Antenna
  • 1 × DC 12V Power Supply
  • 1 × 3.5mm Headphone Splitter
  • 1 × User Manual

Warranty

1 YEAR WARRANTY

Don't worry, Fosi Audio K7 comes with a 1 Year warranty against manufacturing defects. We guarantee that every product on Concept Kart is genuine and backed by the Manufacturer's warranty.

Read more about Concept Kart's warranty policy.

Shipping Policy

FREE SHIPPING ON ALL PREPAID ORDERS

We usually ship orders on same day if ordered before 2 pm or within 24 hours if ordered later (except on holidays/sunday, where processing times may be higher) from one of our domestic warehouses based out of Delhi. It normally takes around 1 to 5 business days for delivery. We use premium service partners such as Blue dart, DTDC and Delivery for faster and reliable service. A tracking number will be provided upon shipment.

In very rare cases when order is not received after 10 business days of shipment (extended by number of days when the govt. Restricts movement of goods due to factors such as coronavirus pandemic), please contact us and we will provide you a support.