Eton Ενεργό subwoofer MOVE 10-300A Membrane diameter (mm)   300 Mounting depth (mm)     200 RMS power handling per voice coil  2 x 500 W Efficiency 1W / 1mtr.  87,4 dB Number of voice coils  2 Impedance per voice coil   2 x 2 Ohm Membrane material   glass fibre Basket material aluminium diecast Voice coil diameter (mm)   72