Trans-Audio Mini 281 are completely compatible with Trans-Audio SW sub-woofers and can be stacked directly on any one. Due to its exceptional sound quality, its power capacity, and its fast and easy rigging, Trans-Audio Mini Line array series are intended for daily use in touring companies, as well as for permanent installation in theatres ,congress centers or arenas. Also, the choice of the present digital processor is to optimize frequency range to reach all expectant condition. Frequency range (-6dB) 80Hz~18kHz (4 units array) Sensitivity ( f>80Hz)103dB/1W/1M (4 units array) SPL (AES) 127dB SPL Peak SPL 130dB SPL Nominal directivity ( -6dB) 120íphorizontal,10ípvertical Nominal impedance 16 Ohm Transducers 2 x 8" bass driver 1" compression driver Rated Power(AES) 200W Rated Power(PEAK) 400W Cabinet 18mm plywood with internal reinforcements Crossover Air core inductors, MKP capacitors, wire wound resistors Finish: black Protection grill Acoustically transparent perforated steel,1.5mm thick Connectors 2 x Neutrik SPEAKON NL4MP Handles 2 integrated handles on side Mounting on stand - Rigging- Dimensions (H x W x D) 655 x 246 x 382 mm Weight Net unit weight 22.5kg Gross weight, packed 25.5kg.