

Desktop DAC Headphone Amplifier
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
What's in the box?
Specifications
General Specs
Chipset: XMOS XU208+AKM4493SEQ+QCC 3031+TPA6120
Maximum Sampling Rate:
USB:PCM 384kHz-32bit/DSD256
Optical: PCM 24bit/192kHz
Coaxial: PCM 24bit/192kHz
Bluetooth:PCM 24bit/48kHz
Headphone lmpedance: 16-300Ω
Input: Coaxial, Optical, USB-C, Bluetooth, 3.5mm Microphone
Output: RCA, 3.5mm Single-Ended, 4.4mm Balanced
Firmware Upgrade: XMOS firmware can be updated via the Type-C interface
Bluetooth Version: 5.0
Bluetooth Connection Distance: ≤13m
Noise Floor: ≤2.5μV
Bluetooth Transmission Audio Format: SBC, AAC, aptX, aptX HD, aptX LL
Input Voltage and Current: DC 12V 2A
USB Compatible Devices: Windows 7,8, 8.1,10,11 (Driver required)Mac OS X, Linux (No driver required)
Audio Parameters
4.4mm Balanced Headphone Output
Rated Power Output: L+R≥2100mW+2100mW (32Ω/THD+N<1%)
SNR: 121dB
THD+N: <0.0002%
Dynamic Range: 121dB
Noise Floor: ≤ 6.5μV
3.5mm Single-Ended Headphone Output
Rated Power Output: L+ R≥600mW+600mW (32Ω/THD+N<1%)
SNR: 122dB
THD+N: 0.0005%
Dynamic Range: 121dB
Noise Floor: ≤2.5μV
Frequency Response: 20Hz-20kHz (±0.1dB)
RCA Output
Output Level: ≥2Vrms
SNR: 20Hz-20kHz (±0.1dB)
THD+N: 0.0005%
Dynamic Range: 121dB
Noise Floor: ≤3μV
Frequency Response: 20Hz-20kHz
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