The Hosa CDL-313 is a professional digital audio interface designed to solve the persistent studio problem of mismatched digital I/O formats. This compact utility device allows simultaneous bi-directional conversion between AES/EBU on balanced XLR connectors and S/PDIF on RCA coaxial connectors, enabling seamless interconnection between digital audio workstations, DAT recorders, sound cards, and other digital audio equipment regardless of their native I/O format. The interface handles two channels of audio in each direction concurrently, ensuring that transfers remain entirely within the digital domain without any analog degradation or resampling artifacts.

Supporting sample rates up to 96 kHz at 24-bit resolution, the CDL-313 maintains pristine audio quality across the conversion process. This capability makes it suitable for professional mastering applications, post-production facilities, and broadcast environments where high-resolution audio must be preserved. The interface is housed in a rugged metal enclosure measuring just 3.19 by 2.5 by 1.5 inches, providing a durable inline package that can withstand daily studio use and tour-ready conditions.

A key feature for professional workflows is the automatic disabling of the Serial Copy Management System (SCMS) when transferring from S/PDIF to AES/EBU. This eliminates the copy protection restrictions that can prevent legitimate transfers between professional equipment, allowing engineers to route signals freely within their facilities. The unit includes an AC adapter for reliable mains power, ensuring consistent operation without relying on bus power from connected devices. The CDL-313 includes independent input and output connectors for both formats, enabling flexible routing configurations suitable for any studio or installation environment.