Fosi Audio K7 Gaming DAC/Headphone Amp 4.4mm 2.1W for PS5 for Switch

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• Mono Amplifier
• Subwoofer amplifier
• Bluetooth Amplifier
• Preamp
• PHONO PREAMP
• Headphone AMP
• DAC
• Gaming DAC
• Amplifier
• Amplifier
• Speakers
• Other

Fosi Audio K7 DAC Headphone Amp, Desktop USB C Digital to Analog Audio Converter for Workspace and Gaming PC PS5, Optical/Coaxial/Bluetooth aptX HD LL/Microphone Input, 3.5mm/4.4mm Balanced/RCA Output

Product Description

ONE DEVICE, TWO WORLDS — GAMING & AUDIOPHILE

Core Advantages 

• No More Compromise: HiFi + Gaming + Work in One Tired of switching multiple devices for music, gaming, and live streaming? The K7 integrates a flagship chipset (XMOS XU208 + AKM4493SEQ + QCC3031 + TPA6120) to handle all scenarios—HiFi-level music detail, low-latency gaming, and clear conference calls. No more cluttered desktops or tangled wires.
• Drives Any Headphone, No Weak Sound Struggle with underpowered amps that can’t handle high-impedance headphones? The K7 delivers 1000mW (3.5mm) / 2300mW (4.4mm) output at 32Ω, easily driving 16-300Ω headphones. Ultra-low noise floor (≤4.5μV) eliminates "hissing" static, perfect for sensitive in-ears.
• Lag-Free Wireless & Wired Connectivity Annoyed by Bluetooth latency in games or video calls? The K7’s QCC3031 chip supports aptX LL (≤40ms latency) + Bluetooth 5.0 (13m range), plus wired USB/optical/coaxial inputs (near-zero latency for PS5 Pro/PS5/Switch). Seamless switching between wireless freedom and gaming precision.
• Intuitive Operation, No Tech Headaches Frustrated by complicated menus or hidden settings? Dual large control knobs, 5 shortcut buttons, and a 1.5-inch high-contrast display let you adjust volume, EQ, and inputs at a glance. Angled ergonomic design ensures easy access—no bending or squinting.
• Durable Build + Pure Sound Fed up with flimsy plastic amps that distort sound? Solid aluminum alloy chassis blocks electromagnetic interference, while fully balanced circuitry reduces noise (SNR ≥121dB) and distortion (THD+N <0.0003%). Crisp highs, tight bass, and accurate imaging—even audiophiles approve.

Scene & Experience That Resonates The K7 isn’t just gear—it’s an extension of your lifestyle. For gamers, aptX LL latency and 384kHz/DSD256 decoding reveal footsteps, gunshots, and environmental sounds with pinpoint accuracy, giving you a competitive edge. For music lovers, it unlocks subtle details in classical symphonies, jazz improvisations, or pop vocals—turning casual listens into immersive HiFi moments. For remote workers or streamers, the 3.5mm mic input with noise reduction ensures your voice is clear (no background hum), while independent mic control and one-touch mute simplify calls. Connect to powered speakers via RCA for a desktop HiFi system, or use the 4.4mm balanced output for premium headphones—this single device replaces your DAC, amp, and Bluetooth adapter. As Audio Science Review notes: “Superbly low noise and distortion, with ease of use—overachieving at this price.” It’s the perfect choice for discerning users who refuse to sacrifice quality for versatility. Technical Specifications Parameter Details Chipset XMOS XU208 + AKM4493SEQ + QCC3031 + TPA6120 Max Sampling Rate USB: PCM 384kHz/32bit, DSD256; Optical/Coaxial: 192kHz/24bit Output Power 3.5mm: 1000mW (32Ω); 4.4mm: 2300mW (32Ω) SNR 3.5mm: 122dB; 4.4mm/RCA: 121dB THD+N <0.0003% Inputs USB-C, Coaxial, Optical, 3.5mm Microphone, Bluetooth 5.0 Outputs 3.5mm Single-Ended, 4.4mm Balanced, RCA Bluetooth Codecs SBC, AAC, aptX, aptX HD, aptX LL Compatibility Windows (driver required), Mac OS, Linux, PS5 Pro/PS5, Switch Housing Solid Aluminum Alloy Firmware Upgrade XMOS via Type-C Package Includes

• 1 x Fosi Audio K7 DAC/Headphone Amp
• 1 x 2-in-1 USB Type-A/C to Type-C Cable
• 1 x Bluetooth Antenna
• 1 x Y-Splitter Cable
• 1 x DC12V Power Supply
• 1 x English User’s Manual

Brand & After-Sales Founded in 2017, Fosi Audio is trusted by audiophiles in 100+ countries. The K7 is engineered with feedback from HiFi and gaming enthusiasts, delivering unmatched value without compromise. Enjoy a 12-month warranty, 30-day free return, and 24/7 English support—risk-free for US buyers. Stop settling for separate devices that fall short. The K7 combines HiFi performance, gaming precision, and work utility in one sleek, durable unit. Elevate every audio moment—order now and experience sound the way it’s meant to be heard.

 Positive reviews/testimonials:
「Replaced my Creative X3—night and day clarity in Warzone; footsteps are scary accurate.」—TechPowerUp comment
「Drives LCD-X at 70 % vol, no distortion, dead silent background with Andromeda IEM.」—Headfonia review
「Finally a DAC that my PS5 recognizes in 2 s; mic knob lets me mute myself without shouting.」—Reddit r/headphones
「CNC chassis feels 300 $ level; knobs click like premium camera lens.」—Amazon US review 2025-10
「Sold my iFi Zen DAC—K7 gives wider stage and more sub-bass control for 30 $ less.」—YouTube influencer

• Payment Policy
• Shipping Policy
• Returns Policy
• After-sales

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3.Payment must be received within 7 business days of auction closing/offer accepted.
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Shipping Policy

Handling Time: 1-3 working days.

Normal delivery time: 1 Week.

Returns Policy Free Return Within 30 Days
We provide free return with 30 days for all items you bought on eBay, full refund and return shipping will be provided.

2-year warranty is provided for all items(Excluding: 1. Man-made damage or misuse. 2. Audio accessories and consumables such as vacuum tubes). After-sales  If you are satisfied with our products and service please leave a 5-star StarStarStarStarStar. Positive feedback rating Feedback is very important to us just like our lives, please DO contact us before you leave a neutral Neutral feedback rating or negative Negative feedback rating feedback, we will provide better solutions until you are satisfied.


About us
Fosi Audio was founded in Shenzhen China, we own the brand Fosi Audio.
As a professional audio company, we are dedicated to design and produce the best products at the lowest prices to make HiFi affordable.
We will spare no efforts to bring great products and service for customers and extremely to improve our customers’ listening experience.


Contact us

Please don't hesitate to contact us if you have any questions or comments about our items. And  our working time is from Monday to Friday between 9:00 am to 06:00 pm(Beijing Time), which means we can keep on-line at:


Working time      
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During holiday, please allow us to response you early next week. Please don't leave any negative / neutral feedback or make dispute/claim on our non-working time, thank you for your understanding and cooperation.
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