Long throw 4-way active Flashlight concert touring and large scale installation system. The TFS-780H mid-high pack consists of a 12" LMF driver on a TurboMid device, a 6.5" HMF driver on a TurboMid device and a 1" VHF compression driver. The TFS-780L is a 21" TurboBass loaded bass enclosure employing a single 21" low frequency driver. Birch plywood cabinets are fully equipped with rear access door, flyplates, heavy duty wheels and flush handles.