Upon power down, the switch over to a line to line configuration allows for the series connection of {HEAD ~ two windings}, necessarily contributing the back EMF energy from a pair of windings to {TAIL ~ the voice coil} 
Upon power down , the switch over to a line to line configuration allows for the series connection of { HEAD ~ two windings } , necessarily contributing the back EMF energy from a pair of windings to { TAIL ~ the voice coil }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL