Biamp Desono C-IC6 Two-Way 6.5-inch Ceiling Mount Conferencing Loudspeaker WhiteC IC6 Two Way 6. 5 inch Ceiling Mount Conferencing Loudspeaker White The Desono C IC6 is a low profile, two way passive coaxial loudspeaker optimized for speech reproduction in conferencing applications. Designed with the installer in mind, the C IC6 loudspeaker supports audio connections via either standard category cable or traditional speaker cable. They can be blind mounted from below the ceiling, and feature a magnetic grille for easy toolless