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Fosi Audio Fosi Audio K5 Pro Gaming DAC Headphone Amplifier
Fosi Audio K5 Pro Stereo Gaming DAC Headphone Amplifier
The K5 Pro features a high-performance audio circuit by Fosi Audio, offering USB C, optical, and coaxial inputs for seamless digital audio connection. Compatible with PS5, computers, and more.
Fosi Audio USB DAC Headphone Amp Combo
- Input: USB-C/OPT/COA/3.5MM Microphone; Output: RCA/3.5mm Headphone; OPT/COASampling Rate: up to 24bit/192 kHz
- Output power: 1000mw@16Ω, 500mw@32Ω, 300mw@64Ω, 150mw@128Ω, 80mw@300Ω;
- THD: <0.003%; S/N: >110db; Frequency response: 20Hz-20kHz；Recommended headphone impedance: 16-300Ω
NEW DAC Headphone Amp
RCA output can be connected to an amplifier or powered speakers on your desktop.
AUX and MIC Inputs
Converts USB Type C/Optical/Coaxial signals to 3.5MM AUX and RCA signals with low distortion.
DAC Audio Converter
Enjoy the realistic auditory experience in every detail.
Stereo DAC Headphone Amplifier
K5 Pro can drive 16 Ohm to 300 Ohm headphones with low distortion and great dynamic range.
Desktop DAC and Headphone Amplifier
The knobs are high quality and turn very smoothly, they’re quite enjoyable to use.
Mini Stereo Gaming DAC
Great Value Headphone AMP/DAC with Bass/Treble Control
Gaming Starts Here
Enjoy the realistic auditory experience in every detail
Great sound quality
Next-generation DAC for unrivalled performance, make your music sound great at home on your desk.
- The upgraded version for Fosi Audio Q4 adds microphone function, K5 Pro headphone DAC amp combo, next-generation audio converter with unrivaled internals, more outstanding performance, and richer audio details. Born for Gaming. K5 Pro stereo DAC headphone amplifier is perfect for your home gaming system, equivalent to an external sound card, suitable for PS5/Computers/PC/MAC/Nintendo Switch/active speakers, etc;
- K5 Pro USB DAC converts USB Type C/Optical/Coaxial signals to 3.5MM AUX and RCA signals with low distortion and great dynamic range. Unique design: 2-in-1 USB Type C interface charging port and audio input means K5 Pro is compatible with your phones. RCA output can be connected to an amplifier or powered speakers on your desktop. 3.5 MM AUX and microphone interface can drive 16 Ohm to 300 Ohm headphones;
- K5 Pro headphone DAC adopts the Texas Instruments NE5532 op-amp chip. The circuit design implementing this DAC has been optimized for a low-noise floor and clean sound. Compared to the last generation Q4, K5 Pro has noticeably improved on overall sound quality, so you can get immersed in your music even more easily;
- Product Specifications: K5 Pro with master volume/bass/treble control and input mode switch. USB Type C/Optical/Coaxial sampling rate: up to 24 bit/192 kHz, THD ≤0.003%, SNR ≥110dB. Output power: 1000mw@16Ω, 500mw@32Ω, 300mw@64Ω, 150mw@128Ω, 80mw@300Ω;
- What You Get: K5 Pro headphone DAC amp x1, 3.5MM headphone splitter x1, 2-in-1 USB Type A/C to Type C cable x1, User Manual x1, Optical Cable x1, our worry-free 24-month warranty, and friendly customer service.
- Fosi Audio K5 Pro x 1
- USB Type-C cable x 1
- Optical cable x 1
- Headset Microphone Two-in-one Adapter cable x 1
- User’s Manual x 1
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Professional Reviews 87/100
Nicely Roasted
Sound Quality
83/100
Build Quality
87/100
Features Usability
90/100
Value for Money
92/100
The K5 Pro brings clean, open gaming audio to a compact desktop hub, pairing clear, mid-forward vocals and satisfying punch with bass and treble controls, mic input, and USB, optical, and coaxial flexibility. Reviews By WaveTheory found its spatial presentation strong for gaming, while Giz Audio praised its consistently capable amplification. At $80, it is an unusually versatile gateway beyond onboard sound.
What Reviewers Are Saying
Pros
Clean, mostly neutral sound with clear vocals, useful spatial presentation, and satisfying dynamics for gaming and music.
Versatile desktop feature set includes microphone input, tone controls, USB/optical/coaxial inputs, and variable RCA outputs.
Strong value and useful output power for many mainstream headphones at its budget price.
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Cons
Sensitive IEMs may reveal faint background hiss, and USB noise can occasionally bleed through with some sources.
Demanding 300-ohm headphones and certain inefficient models can sound lean or lack dynamic authority.
Heavy bass boost can muddy the midrange and introduce distortion at high volume.
SOUND QUALITY PERFORMANCE 83/100
Reviewers find the K5 Pro clean, generally neutral and enjoyable for its price, with clear midrange and respectable spatial presentation. Its performance is less consistent with demanding headphones and ultra-sensitive IEMs, while fine-detail retrieval and ultimate low-end authority are limited.
Transparency Resolution
84/100
Reviews By WaveTheory found it cleaner and more resolving than basic gaming audio, while Cheap Audio Man praised crystal-clear vocals and an open presentation. PortaFi considers detail retrieval normal rather than highly resolving, noting limited microdetail, texture and treble layering.
Tonal Balance Musicality
85/100
The default presentation is widely described as mostly neutral, clean and lightly coloured, with a touch of warmth and weight through vocals according to PortaFi. There are caveats: WaveTheory occasionally heard treble sharpness, while Giz Audio found the reduced bass weight could make the overall balance somewhat bright or clinical.
Dynamics
84/100
Several reviewers heard satisfying punch, bass rumble and dynamic impact, and Giz Audio reported consistent sound even at elevated listening levels. Performance depends on the headphone: Cheap Audio Man found limited dynamics with the Dan Clark Aeon Closed RT, while bass boost and very high volume can bring distortion.
Noise Floor
80/100
Noise performance is good with most headphones, with Giz Audio hearing virtually no noise outside extremely sensitive IEMs and Cheap Audio Man reporting no audible hiss with his IEMs. However, Audiophile Heaven heard audible background hiss with sensitive in-ears, and Reviews By WaveTheory detected some USB ground-loop noise from a laptop.
Headphone Compatibility
84/100
The amplifier reached useful levels with a broad selection of headphones in Giz Audio's testing, and reviewers found it capable with typical full-size models as well as many IEMs. Pairing is not universally ideal: WaveTheory found the HD6XX lean in the low end, and Cheap Audio Man found the Aeon Closed RT less lively than better-matched headphones such as the HD58X and 7Hz Legato.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
87/100
PortaFi describes a compact solid-aluminium enclosure with effective rubber feet, while Giz Audio found the chassis, controls and connectors reassuringly tight for the price. The reviews are positive about fit and finish, although they provide little long-term durability evidence.
Features Usability
90/100
This is unusually versatile for a compact gaming-oriented DAC/amp, combining USB, optical and coaxial inputs, a microphone input, tone controls, a headphone output and variable RCA outputs for active speakers. Reviewers also praise its driver-free plug-and-play operation and the removable USB-A adapter that exposes USB-C compatibility, though USB audio is limited to 24-bit/96kHz.
Value for Money
92/100
At roughly $80, reviewers repeatedly call the K5 Pro a great value, citing its connection options, microphone support, tone controls and useful power output. Reviews By WaveTheory calls it a solid entry point for gamers beginning to explore better music playback, while PortaFi highlights its strong price-to-quality proposition.
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Authorized dealers for Fosi Audio Fosi Audio K5 Pro Gaming DAC Headphone Amplifier
- Acoustic Technologies — online and in-store — Montréal, Québec, Canada (website)
- Altitudo Audio — online and in-store — Winnipeg, Manitoba, Canada (website)
- Apos Audio — online and in-store — Oakland, California, United States (website)
- Audeos — online and in-store — Żywiec, Województwo śląskie (website)
- Audio 46 — online and in-store — New York, New York, United States (website)
- Audio Domain — online and in-store — Stadtbezirke I, Nordrhein-Westfalen, Germany (website)
- Audio Magic - EU — online and in-store — Wola, Województwo mazowieckie, Poland (website)
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- B&H Photo — online and in-store — New York, New York, United States (website)
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