Features: 1) Great sound and look 2) Tough and reliable 3) Die-cast aluminum frame 4) Smooth flat response, clear and tightly-defined coverage 5) Low distortion with very high output levels 6) 2-way 15" full range floor monitor loudspeaker system 7) High fidelity and high efficiency 8) Rough MDF(or plywood) enclosure with recessed handles 9) S-151H an ideal choice for almost all high power monitoring applications Specifications: 1) RMS power: 250W 2) Impedance: 8 Ohm 3) Sensitivity (1W, 1M): 98dB 4) Frequency response: 45Hz - 20kHz 5) Maximum SPL: 135dB 6) Components: 15" woofer with die-cast aluminum frame, 44. 40mm compression driver 7) Protection: Independent overload protection 8) Connections: 'Speakon' and 1/4" phone jacks 9) Enclosure: 18mm thick MDF cabinet with textured paint finish, steel grille, rubber feet, recessed handles 10) Recommended amplifier/peripheral: P-PA-1200 Inner packing: Dimensions: 500 x 700 x 495mm N. W. (unpacked): 35. 00kg Outer packing: Carton dimensions: 572 x 572 x 775mm G. W.: 36. 10kg Please refer to our website for more information and more models, thanks.