The M15C coaxial series loudspeaker is fitted with a coaxial cone transducer. It features a coaxial point source in the transducer unit structure. This eliminates phase differences between high and low frequencies .And it provides no distortions due to distance and time differences among source points .Driven by the coaxial structure, the sound spreads in perfect sonic symmetry. Frequency range (-6dB)   60 Hz to 19 kHz Sensitivity ( f>80Hz)   98dB SPL (AES)   123dB SPL  Peak SPL   126dB SPL  Nominal directivity ( -6dB)   Conical 90° waveguide Nominal impedance   8 Ohm  Transducers   15" (250mm) bass driver 1" (25.4mm) compression driver Rated Power(AES)   350W Rated Power(PEAK)   700W Cabinet   18mm plywood with internal reinforcements  Crossover   Air core inductors, MKP capacitors, wirewound resistors Finish    BLACK Protection grill   Acoustically transparent perforated steel,1.5mm thick Connectors   4 x Neutrik SPEAKON NL4MP Handles   2 integrated handles on side Mounting on stand   Put it on ground Rigging    6 standard points Dimensions (H x W x D)   660 x 440 x 456 mm  Weight   Net unit weight 30.4kg Gross weight, packed 33.4kg