Brand | Fosi Audio |
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Manufacturer | Fosi Audio |
Model | K5 PRO |
Model Name | K5 K5 Pro |
Part Number | K5 Pro |
OS | Linux, Windows, macOS |
Compatible Devices | Gaming Console, Personal Computer, Headphone, Smartphone |
Special features | Portable |
Mounting Hardware | User Guide |
Number of Items | 1 |
Audio input compatible with the item | USB, Optical, Coaxial |
Power source type | DC |
Batteries included | No |
Batteries Required | No |
Connector Type | USB |
Material Type | Metal Plastic |
Mounting type | Tabletop Mount |
Does it contain liquid? | No |
Includes rechargable battery | No |
Manufacturer | Fosi Audio |
Language | Altaic Languages |
Item model number | K5 PRO |
Product Dimensions | 11.18 x 9.4 x 3.05 cm; 422 g |
ASIN | B0BFHFSX4C |
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Fosi Audio K5 Pro Gaming DAC Headphone Amplifier Mini Hi-Fi Stereo Digital-to-Analog Audio Converter 24-Bit 192 kHz USB Type C/Optical/Coaxial to RCA/3.5MM AUX for PS5/PC/MAC/Smartphone/Computer
Purchase options and add-ons
Brand | Fosi Audio |
Compatible devices | Gaming Console, Personal Computer, Headphone, Smartphone |
Connectivity technology | USB |
Number of channels | 2 |
Operating system | Linux, Windows, macOS |
Audio input | USB, Optical, Coaxial |
Maximum sample rate | 192 KHz |
Manufacturer | Fosi Audio |
About this item
- The upgraded version of 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/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(Note: Your audio source must be connected to the USB-A/C port.). 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 ¡Ü0.003%, SNR ¡Ý110dB. Output power: 1000mw@16¦¸, 500mw@32¦¸, 300mw@64¦¸, 150mw@128¦¸, 80mw@300¦¸
- What You Get: K5 Pro 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
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Product information
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Additional Information
Date First Available | Oct. 1 2022 |
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Customer Reviews |
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From the brand

Amplifying Your Voice, Shaping Our Innovation
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Guided by our mission of "Redefining HiFi with Unmatched Value", Fosi Audio continues to fuel its passion for the Hifi industry, ramp up R&D efforts, and co-create new HiFi equipment with users. We pledge to bring more amazing Hifi gear with high value for the price, innovative design, cutting-edge technology, and premium quality, to audiophiles worldwide.
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Product Description

USB DAC Born for Gaming
Fosi Audio K5 Pro Stereo Gaming DAC Headphone Amplifier
The K5 Pro has a high-performance audio circuit designed by the Fosi Audio innovation product R&D team, allowing you to take advantage of digital audio with USB C/optical/coaxial inputs, convenient for connecting various digital interfactes, compatible with PS5/Computers/Nintendo Switch, etc.

Fosi Audio USB DAC Headphone Amp Combo
- Input: USB-C/OPT/COA/3.5MM Microphone; Output: RCA/3.5mm Headphone
- USB C/OPT/COASampling Rate: up to 24bit/192 kHz;
- Output power: 1000mw@16¦¸, 500mw@32¦¸, 300mw@64¦¸, 150mw@128¦¸, 80mw@300¦¸;
- THD: <0.003%; S/N: >110db; Frequency response: 20Hz-20kHz
- Recommended headphone impedance: 16-300¦¸
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practical and usefull
NEW DAC Headphone Amp
RCA output can be connected to an amplifier or powered speakers on your desktop.
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outstanding performance
Exclusive Design with Independent Mic Input
Converts USB Type C/Optical/Coaxial signals to 3.5MM AUX and RCA signals with low distortio
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rich and delicate sound
Gaming Starts Here
Enjoy the realistic auditory experience in every detail
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elegant grey exterior
Desktop DAC and Headphone Amplifier
The knobs are high quality and turn very smoothly, they¡¯re quite enjoyable to use.
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works with PS5 USB audio
Mini Stereo Gaming DAC
Great Value Headphone AMP/DAC with Bass/Treble Control
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easy to install
Plug-n play, No Deriver Needed
If you have RCA speakers and want to connect them to computer, get this device!
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RCA ouput
Great sound quality
Next-generation DAC for unrivalled performance, make your music sound great at home on your desk.
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Customer Reviews
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4.0 out of 5 stars 1,087
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4.1 out of 5 stars 2,963
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4.5 out of 5 stars 324
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4.4 out of 5 stars 206
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4.4 out of 5 stars 564
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4.6 out of 5 stars 72
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4.3 out of 5 stars 369
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Type
| DAC+Headphone Amp | DAC+Headphone Amp | Headphone Amplifier/Preamp | DAC+Headphone Amplifier/Preamp | Headphone Amp | Headphone Amp | DAC+Headphone Amp |
MAX Power Output
| - | - | 2400mW; 300mW | 280mW; 1100mW | 40mW@100 Ohm | 310³¾°Â°ª32¦¸ | 120mW@32 Ohm; 220mW@32 Ohm |
Input
| USB + Optical + Coaxial+ Micro | PC-USB + Optical + Coaxial | 3.5mm line in | USB + Optical | 3.5mm AUX | 3.5mm AUX | Type C+ USB A |
Output
| RCA + 3.5mm Headphone | RCA + 3.5mm Headphone | 3.5mm/6.35mm headphone | 3.5/4.4mm Headphone, AUX/OPT | 3.5mm Headphone | 3.5mm Headphone ¡Á5 | 3.5mm + 4.4mm Headphone |
Treble & Bass Control
| ✔ | ✔ | ✔ | ✘ | ✘ | ✘ | ✘ |
THD
| <0.003% | ¡Ü0.01% | <0.001% | ¡Ü0.001% | - | <0.001% | ¡Ü 0.0006%(SE) ¡Ü 0.001%(BAL) |
SNR
| >110dB | ¡Ý105»åµþ | ¡Ý108»åµþ | ¡Ý120»åµþ | - | ¡Ý105»åµþ | ¡Ý120»åµþ |
Terminating Impedance
| 16-300 Ohm | 16-200 Ohm | 16-300 Ohm | 16-300 Ohm | 15-150 Ohm | 16-300 Ohm | 16-300 Ohm |
Work Voltage
| USB-C/DC5V | DC 5V | USB-C/DC5V | USB-C/DC5V | DC 12V | DC12V/1A | - |