Fosi Audio SK02 Desktop DAC Headphone Amplifier

• Compact Yet Powerful: The SK02 employs a minimalist and stylish design language. Despite its small size, it boasts mighty features. It supports DSD256 and PCM 32bit/384kHz high-resolution decoding, along with 3.5mm single-ended and 4.4mm balanced headphone outputs. Its robust power can easily drive a wide range of headphones and IEMs with an impedance range of 16-300 ohms.
  
  
• Stunning Performance: It features a high-end ESS SABRE ES9038Q2M DAC and SGM8262 op-amps. Its excellent circuit design ensures superior parameters with a SNR as high as 120dB, a low noise floor of only 3.7μV, and an incredibly low THD of 0.001%. The 4.4mm balanced output power reaches an impressive 1100mW at 32 ohms. The exceptional high-resolution capability and pure sound quality make every listening experience an extraordinary sensory journey.
  
  
• User-Friendly Design: The SK02 requires no drivers and offers plug-and-play convenience. It integrates a big multi-functional control knob, allowing easy access to power on/off, play/pause, and volume adjustments. The unit features quick-switch buttons for high/low gain and input modes. Additionally, its colorful indicator lights enable effortless identification of the current working mode and the song's sampling rate.
  
  
• Remarkable Versatility: Supports USB and optical input, widely applicable for decoding with computers, laptops, CD players, TVs, and projectors. Not only can it function as a headphone amplifier, but it can also serve as a preamp, pairing with active speakers or an amplifier like Fosi Audio V3, ZA3, TB10D amp, and passive speakers to form a desktop listening or home audio system.
  
  
• Exquisite and Durable: The SK02 is crafted from a single piece of aluminum alloy using CNC machining and a delicate sandblasting process. This not only gives it an exquisite appearance but also ensures lasting durability. In addition, Fosi Audio pledges to provide a 24-month worry-free warranty and responsive customer service to all users.
  
  

Model    SK02
Input    USB/OPT
Output    
3.5mm Headphone,
4.4mm Headphone,
3.5MM line out/OPT

Max Power Output    
3.5mm: 190mW@32Ω
4.4mm: 755mW@32Ω

Frequency Range    20Hz-20kHz (±0.02dB)
THD    ≤0.001% @ 1kHz 
SNR    3.5mm Headphone:
Low Gain:116dB
High Gain:120dB

4.4mm Headphone:
Low Gain:110dB
High Gain:115dB
Headphone matching impedance    16-300Ω
PC-USB Sampling Rate    32Bit/384KHz DSD256
OPT Sampling Rate    24Bit/192KHz
DAC Chip    ES9038Q2M
Device Dimension    4.76*2*1.69inch
(121*51*43mm)
Net Weight    0.84lb/380g
Power Supply    5V, USB Type-C

2 Years Warranty