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
Brand: Fosi Audio
Description
The versatile solution for headphone HiFi and desktop audio. The K7 is an all-in-one HiFi DAC and headphone amplifier, developed based on in-depth interviews with hundreds of headphone HiFi and gaming enthusiasts. It supports mainstream digital inputs including USB, optical, and coaxial, and features aptX HD/LL for high-quality Bluetooth audio streaming. SNR: ≥ 121dB; THD+N: ≤ 0.0002%; Noise Floor: ≤6.5μV Input Voltage: DC 12V Matches with HiFi headphones to meet the needs of audiophiles, building high-quality audio. Delivers high-resolution and immersive audio excellence. Multiple interfaces make connecting your devices effortless. Supports powerful balanced and single-ended outputs, plus crystal-clear mic input. Imperceptible Latency: Under 40ms Sampling Rate: PCM 24bit/48kHz Delivers clear sound with minimal distortion, unlocking your headphones & speakers' full potential. Reduces noise and interference with gain and protection circuits for clear, authentic audio output. Low-noise LDOs ensure clean power delivery, boosting audio performance with strong, stable output. A compact and exquisite full-metal chassis with fine sandblasting, robust and durable. Ensure you have the correct driver installed for your operating system. As a DAC and headphone amplifier, the K7 requires a driver to function properly. You can find the latest drivers on our website or in the product manual. -- Power Supply: Check that you are using the correct DC 12V 2A power supply as specified in the General Specs. -- Input Mode: When using a microphone or connecting to the PS5, ensure the input mode is set to USB 1.0 (UAC 1.0) for compatibility with gaming features. UAC 2.0, which supports higher audio sample rates, is not compatible with PS5 due to protocol restrictions. -- Firmware Update: The XMOS firmware can be updated via the Type-C interface to resolve any software-related issues. Check our website for firmware updates. 2 -- EQ and Gain Settings: Ensure Bypass mode is off and EQ is on. Adjust the gain if it's set too high, as this can amplify background noise. -- Headphone Sensitivity: If you're using highly sensitive headphones (above 100dB), consider turning off high gain and adjusting EQ settings. -- Output Selection: The 4.4mm output may produce more noise than the 3.5mm output. Try switching to the 3.5mm output to reduce hiss. 3 -- Knob Design: The volume knob is designed for continuous rotation without hard stops, allowing for quick adjustments in the low range (0-24) and finer control in the mid (24-52) and high (52-62) ranges. -- Button Response: If the button feels sticky, ensure it's clean and free of debris. If the issue persists, contact our support for assistance. -- RCA Port: The RCA port on the K7 is for output only, not input. This detail is mentioned in the product specifications but may not be prominently highlighted. The K7 supports Bluetooth 5.0, allowing for wireless audio streaming. Ensure your device is compatible with the Bluetooth transmission audio formats listed in the General Specs. Maintain a connection distance of ≤13m for optimal performance. -- he K7 is compatible with Windows 7, 8, 8.1, 10, 11 (driver required), Mac OS X, and Linux (no driver required). K7 K5 Pro Q4 SK01 SK02 DS1 DS2
About this item
- Versatile DAC Amp: The K7 is designed for both HiFi headphone audiophiles and music lovers. It can serve as a powerful hub for building your desktop audio system. Whether your're enjoying music, gaming or working, the K7 handles it all with ease
- Audiophile-Grade Chipset: Equipped with the AK4493S DAC, XMOS XU208 USB processor, and TPA6120 headphone amps, the K7 supports high-resolution decoding up to PCM 384kHz/32bit and DSD256. With up to 2100mW output power, it easily drives demanding headphones
- Comprehensive Connectivity: Supports USB-C, coaxial, optical, Bluetooth aptX HD/LL and 3.5mm microphone input. Outputs include 4.4mm balanced, 3.5mm single-ended, and RCA—easily connecting to headphones, powered speakers, or amplifiers for desktop setups