Ranko's featured product, the REA-680, is a high-performance USB DAC/AMP that effortlessly converts digital streams into high-fidelity analog audio, allowing for easy headphone driving. It supports a maximum sampling rate of 768k and can be connected to smartphones, PCs, and gaming consoles. Additionally, it boasts MQA decompression and AWR waveform restoration technology, delivering studio-grade sound quality. The RUF-100, on the other hand, is the industry's first high-quality USB streaming cable that utilizes the patented UIF (USB Interference Filter) technology. This cable restores the integrity of signal content and enhances power supply with its superior 6N OCC conductors.

--------------- Click here for detailed post (originally in Chinese) ---------------