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
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
- 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
- User-Centric Design: Compact yet user-friendly, the K7 features dual large control knobs, five shortcut buttons, and an angled chassis for ergonomic comfort. A high-resolution display shows real-time status, making operation easy and intuitive
- Durable All-Metal Build: Crafted from solid aluminum alloy, the K7 features a rugged, wear-resistant chassis with a sleek metallic finish and enhanced electromagnetic interference shielding
Product Description
Multifunctional & User-Friendly Design
Fosi Audio K7 Desktop DAC Headphone Amp
The versatile solution for headphone HiFi and desktop audio.
Born for HiFi and Entertainment
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.
- Input: Bluetooth, COAX, OPT, USB
- Output: 3.5mm Single-ended/4.4mm Balanced Headphone Output, RCA
- SNR: ≥ 121dB; THD+N: ≤ 0.0002%
- Noise Floor: ≤6.5μV; Input Voltage: DC 12V
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Desktop Audio Hub
Matches with HiFi headphones to meet the needs of audiophiles, building high-quality audio.
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Audiophile-Grade Chipset Integrated
Delivers high-resolution and immersive audio excellence.
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Comprehensive Connectivity Options
Multiple interfaces make connecting your devices effortless.
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Your Headphone and Mic Needs Covered
Supports powerful balanced and single-ended outputs, plus crystal-clear mic input.
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Hi-Res Bluetooth Codecs
- Imperceptible Latency: Under 40ms
- Sampling Rate: PCM 24bit/48kHz
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Excellent Combination of HiFi and Gaming
Delivers clear sound with minimal distortion, unlocking your headphones & speakers' full potential.
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0.0002% Ultra-low Distortion
Reduces noise and interference with gain and protection circuits for clear, authentic audio output.
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Ensuring Clear Sound Quality
Low-noise LDOs ensure clean power delivery, boosting audio performance with strong, stable output.
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Real-time Feedback on the Current Settings
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Effortless Operation with Tactile Feedback
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Multifunctional, Pressable, Infinitely Rotatable
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Optimized for Desktop Use
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CNC Integration Design
A compact and exquisite full-metal chassis with fine sandblasting, robust and durable.
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Which input modes support the use of microphones?
The microphone can only be used in USB input 1.0 mode, not in Bluetooth, optical fiber, etc; The microphone is not supported in RCA output mode, only in headphone output mode.
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Why can't the microphone function be used in USB 2.0 mode?
Because 2.0 supports higher sampling rates, while the sampling rate of the microphone is only 16bit/48khz. When playing high sampling rates such as dsd or 384khz, if the microphone is turned on at the same time, the two will conflict.
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Does the 3.5mm audio output interface on K7 support 4-section headphones inserted to use the microphone for calls?
Not supported.
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Does the microphone have noise-reduction processing?
Yes, K7 has targeted the ambient noise frequency band and has processed it in an algorithm to make your call clearer.
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Microphone mute function.
After turning on the microphone mute function with one click, the other party will not hear any of your voice.
Product Comparison
| Customer Reviews | 4.2 out of 5 stars 20 | 4.1 out of 5 stars 1,020 | 4.6 out of 5 stars 11 | 4.5 out of 5 stars 140 | 4.4 out of 5 stars 193 | 4.3 out of 5 stars 351 | 4.3 out of 5 stars 171 |
| Price | $279.99$279.99 | $89.99$89.99 | $127.49$127.49 | $259.99$259.99 | $109.99$109.99 | $109.99$109.99 | $99.99$99.99 |
| Type | DAC+ Headphone Amp | DAC+Headphone Amp | HiFi DAC | Balanced Stereo DAC | Headphone Amp+Equalizer | DAC+ Headphone Amp | DAC+ Headphone Amp |
| MAX Power Output | 3.5mm:1200mW/4.4mm:4200mW@32Ω | 500mw@32Ω | - | XLR: 5Vrms/RCA: 2.5Vrms | 3.5MM: 280mW/4.4MM: 1100mW@32Ω | 120mW(SE); 220mW(BAL) | 130mW(SE); 510mW(BAL) |
| Input | USB-C+OPT+COA+BT+Microphone | USB-C+OPT+COA+3.5mm Microphone | USB+OPT+COA | USB+HDMI+OPT+COA+BT | USB/OPT | Type C | Type C |
| Output | RCA + 3.5/4.4mm Headphone | RCA + 3.5mm Headphone | RCA+Powered Subwoofer Output | XLR + RCA | 3.5mm/4.4mm HP+3.5mm AUX/OPT | 3.5mm + 4.4mm Headphone | 3.5mm + 4.4mm Headphone |
| Treble & Bass Control | ✘ | ✔ | ✘ | ✘ | ✘ | ✘ | ✘ |
| THD | ≤ 0.0002% | <0.003% | ≤0.00012% | <0.00008% | ≤ 0.001% | ≤ 0.0006%(SE) ≤ 0.001%(BAL) | ≤ 0.0002%(SE) ≤ 0.001%(BAL) |
| SNR | 126dB | >110dB | 121dB | 126dB | 3.5mm: 120dB/4.4mm: 115dB | ≥120dB | ≥130dB |
| Terminating Impedance | 16-300 Ohms | 16-300 Ohms | No Headphone Output | No Headphone Output | 16-300 Ohms | 16-300 Ohms | 16-300 Ohms |
| Work Voltage | DC 12V | DC 5V | DC 5V | DC 12V | DC 5V | DC 5V | DC 5V |
- Item Weight: 1.13 kg
- Item Model Number: K7
- Country of origin: China
- Package Dimensions: 29 x 20.4 x 9.7 cm; 1.13 kg
- Manufacturer: Fosi Audio
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In Stock