The ONIX Zenith XST20 is a top-loading SACD/CD transport designed to deliver true DSD quality playback to external DACs via I2S, Coaxial, Optical, AES, or BNC connections. It supports various disc formats, including single-layer and multi-layer SACDs, standard CDs, and MQA-CDs, ensuring versatile and gapless playback for audiophiles seeking exceptional sound quality.​