This article covers ノイズ デジタル インターフェイス 3 つのグループ電源を備えた USB サウンド カード 安定したコンデンサ 外部電源 USB デジタル.

Overview

The Yjcnelcr USB Sound Card is a compact USB DAC that features automatic switching between USB bus power and external DC 7-9V power. It employs three low-noise regulators and stable capacitors to deliver clean HiFi-grade power. With MQA decoding support, it can expand MQA files to 352.8KHz PCM via USB or 176.4KHz via coaxial/optical. It also supports high-resolution audio up to 768KHz PCM and DSD512 via IIS output, making it a versatile choice for PC audio enthusiasts. This product is ideal for users looking to upgrade from onboard sound or those who want to enjoy high-resolution music streaming with MQA. Its multiple output options (IIS, coaxial, optical) provide flexibility for connecting to various audio systems.

Key Features

Triple-group power supply design: Three low-noise regulators and capacitors isolate analog and digital power rails, reducing noise for cleaner sound reproduction. MQA decoding: Full MQA decoding via USB (352.8KHz) and core decoding via coaxial/optical (176.4KHz), enabling studio-quality streaming from services like TIDAL. High-resolution audio support: IIS output handles up to 768KHz PCM and DSD512; coaxial and optical outputs support up to 192KHz PCM and DSD64. Dual LED indicators: Blue light for PCM playback, red light for MQA playback, allowing quick visual identification of the audio format. * Flexible power options: Automatically switches between USB bus power and external DC 7-9V input, ensuring stable operation even with devices that have weak USB power.

Connectivity & Compatibility

The sound card connects via USB-B input and works with Windows, macOS, and Linux without additional drivers. Output options include IIS (internal pin header), coaxial (RCA), and optical (TOSLINK). It can be paired with amplifiers, active speakers, or headphone amplifiers. External DC 7-9V power (adapter not included) is recommended for optimal performance in noisy environments.

Product Info

Released around 2024, the Yjcnelcr USB Sound Card is priced at approximately 5,000 JPY (reference price on ). Warranty terms vary by seller. The package includes a USB cable only; an external power adapter must be purchased separately. It is available from and other online retailers.

Best Use Cases

PC audio upgrade: Ideal for replacing onboard sound with a cleaner, higher-resolution audio path. Using an external power supply further reduces noise. MQA streaming: Perfect for TIDAL subscribers who want full MQA decoding without investing in expensive DACs. * Multi-output setups: With IIS, coaxial, and optical outputs, users can connect to multiple DACs or amplifiers for different listening environments.

Things to Consider

This device does not include a headphone output; it is a line-level DAC only. You will need a separate headphone amplifier or powered speakers. The external power adapter is not included, so factor that into your purchase. MQA full decoding is only available via USB input; coaxial/optical inputs support core decoding only.