USB Playback Driver for Windows

CP-800 & Sigma SSP – USB 2.0 Playback Driver for Windows™ PC

The Classe USB 2.0 driver for CP-800 and Sigma SSP is required in order to play USB audio files from a Windows PC.
Mac users do not need to install this driver.

NOTE: It is strongly recommended that earlier versions of the Classe USB Audio driver be uninstalled from your Windows computer prior to installing the new version.