Headphones / Earphones
Headphone Amps
DAC built-in headphone amplifiers
Fosi Audio/K5 PRO Gaming DAC and Headphone Amplifier

Fosi Audio / K5 PRO Gaming DAC and Headphone Amplifier

The "K5 PRO" is a gaming DAC/headphone amplifier equipped with a microphone function.

[Headphone amplifier with microphone function]
・Headphone DAC amplifier K5 PRO with added microphone function performs excellently as an audio converter. Perfect for home gaming systems. Equivalent to an external sound card, applicable to PS5/computer/PC/MAC/Switch/active speakers, etc.

[2-in-1 USB DAC amplifier]
・Converts USB Type C/optical/coaxial signals to 3.5mm AUX and RCA signals with low distortion and excellent dynamic range. Compatible with smartphones (even mobiles) with 2-in-1 USB Type C interface charging port and audio input. RCA output can be connected to an amplifier or active speakers. The 3.5mm AUX and mic ports can drive 16Ω to 300Ω headphones.

[High performance chip]
- Adopts Texas Instruments NE5532 operational amplifier chip. The K5 PRO's circuit design is optimized for low ground noise and clean sound. It features very low noise, high output drive capability, high unity gain, maximum output swing bandwidth, low distortion, high slew rate, input protection diodes, and output short circuit protection.

■Compatible devices: PC, Mac, PS5, PS4, PS4 Pro, Nintendo Switch, iPhone
■Input: USB-C, optical, coaxial, 3.5mm microphone input
■Output: 3.5mm headphone jack/line output, RCA terminal
■Sampling rate:
・USB: Maximum 24bit/96kHz
・Optical digital/coaxial: max. 24bit/192kHz
■Compatible headphone impedance: 16-300Ω
■Power supply: DC 5V (USB-C power supply)
■Output
・1000mW @ 16Ω
・500mW @ 32Ω
・300mW @ 64Ω
・150mW @ 128Ω
・80mW @ 300Ω
■Sound quality performance
・THD: 0.003% or less
・SNR: 110dB or more
■Size/weight
・External dimensions: 112 x 95 x 30mm
・Body weight: Approx. 251g
■Accessories
・Fosi Audio K5 Pro body x 1
・2-in-1 USB (Type-A/C to Type-C) cable x 1
・3.5mm distribution cable x 1
・Instruction manual x 1