- The 30AE Ceiling Speaker provides additional economical paging coverage to existing Viking paging units (PA-2A, PA-15, PA-30, PA-60, M2W) or to any system with an 8 Ohm output.- In office and restaurant environments, it is best to distribute sound evenly. Ceiling mounted 30AE speakers in close proximity offer the best distribution and are cost effective.- Add additional speakers and coverage area to existing paging systems such as Viking models: PA-2A (DOD 485), PA-15 (DOD 486), PA-30 (DOD 489), PA-60 (D