{HEAD ~ an equalization section} configured to carry out an equalization with respect to {TAIL ~ a signal sequence} reproduced from a magnetic recording medium, and to output an equalized waveform; and 
{ HEAD ~ an equalization section } configured to carry out an equalization with respect to { TAIL ~ a signal sequence } reproduced from a magnetic recording medium , and to output an equalized waveform ; and
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH