Biamp Desono DX-IC4LP - Two-Way 4.5-Inch Low Profile Ceiling Loudspeaker (White)Priced individually, but sold in pairs. Only 3. 4 inches (86 mm) in depth, the DX IC4LP solves space problems that competing products cannot. Suitable for paging, background music, or to augment larger systems, the DX IC4LP is a versatile performer. It installs quickly and provides exceptionally uniform coverage with excellent sonic properties. Uniform voicing among the Desono DX product family makes for an easy match to the other models in the