... ,conference Model: Martin audio,line array speaker,empty box be suitable for large outdoor performance,gymnasium, concert ... horn loaded, rear reflex loadedDRIVERS: HF SECTION 2 x 1" (25mm) exit HF compression drivers, horn loadedRATED ... paintFITTNGSproprietary rigging systemPROTECTIVE GRILLEPerforated steelDIMENSIONS(W) 620mm x (H) 284mm x (D) 400mmWEIGHT30kg Martin audio line array speaker ...