Fosi Audio SK02 DAC Compact Headphone Desktop to AUX Audio Converter Compact Home Optical Input Balanced Black Japanese Instruction Manual Included

【Important Notice for International Buyers – Tomoayax Premium Audio Hi-Fi Japan】

■ Voltage Compatibility This product is designed exclusively for use in Japan (AC 100V, 50/60Hz).

Many regions use 120V or 220–240V. Using this product without a proper transformer in such voltage environments may result in malfunction, overheating, or serious and irreversible damage.

■ Plug Type This product uses a Japanese plug (Type A or B). A plug adapter may be required depending on your region.

■ Transformer Requirement (Very Important) A transformer is required for safe use.

A plug adapter only changes the plug shape and DOES NOT convert voltage. Using this product without a transformer may cause serious and irreversible damage.

■ Buyer Responsibility As this is high-end audio equipment, the buyer is fully responsible for confirming compatibility with their local voltage (100V / 120V / 220–240V) and usage environment before purchase.

■ No Return / No Refund Policy We do NOT accept returns or refunds for: ・Voltage mismatch (including 120V and 220–240V environments) ・Use without a transformer ・Plug incompatibility ・Damage caused by improper setup or usage

■ Liability We are not responsible for any damage, malfunction, or performance issues caused by improper use or incorrect voltage conditions.

■ Final Notice Please ensure full understanding of the above before purchasing. Use only under the correct voltage environment. Compact and Powerful: The SK02 features a simple design and boasts powerful functionality despite its small size. It supports high-resolution decoding of DSD256 and PCM 32bit/384kHz, and has 3.5mm single-ended and 4.4mm balanced headphone outputs. Its robust power allows it to easily drive a wide range of headphones and IEMs with impedances from 16 to 300 Ω. Remarkable Performance: Superior circuit design using the high-end ESS SABRE ES9038Q2M DAC and SGM8262 op-amp ensures excellent parameters, with a high S/N ratio of 120dB, a noise floor of just 3.7μV, and a low THD of 0.001%. The 4.4mm balanced output reaches an astonishing 1100mW at 32Ω, and with its outstanding high-resolution capabilities and clear sound quality, every listening experience becomes an extraordinary sensory journey. User-friendly design: The SK02 requires no drivers and offers plug-and-play convenience. A large, integrated multi-function knob provides easy access to power on/off, play/pause, and volume control. The unit also features a quick-switch button for high/low gain and input mode. Furthermore, colorful indicator lights make it easy to identify the current operating mode and the song's sampling rate. Excellent Versatility: Supporting USB and optical inputs, it can be widely applied to decoding on PCs, CD players, TVs, and projectors. It functions not only as a headphone amplifier but also as a preamplifier, allowing you to build a desktop listening or home audio system in combination with active speakers, amplifiers such as Fosi Audio V3, ZA3, and TB10D amplifiers, and passive speakers. 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 guarantees lasting durability. Furthermore, Fosi Audio promises all users a 24-month warranty and prompt customer service. Compact and Powerful: The SK02 features a simple design and boasts powerful functionality despite its small size. It supports high-resolution decoding of DSD256 and PCM 32bit/384kHz, and has 3.5mm single-ended and 4.4mm balanced headphone outputs. Its robust power allows it to easily drive a wide range of headphones and IEMs with impedances ranging from 16 to 300 Ω.