<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<RESTATED> 
<CIK> 0000805268
<NAME> BOSTON ACOUSTICS, INC.
       
<S>                             <C>                     <C>                     <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   6-MOS                   9-MOS                   YEAR
<FISCAL-YEAR-END>                          MAR-28-1998             MAR-28-1998             MAR-28-1998             MAR-28-1997
<PERIOD-END>                               JUN-28-1998             SEP-27-1997             DEC-27-1997             MAR-29-1997
<CASH>                                         2856796                  980144                 1562830                 4937232
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<ALLOWANCES>                                    409080                  430000                  477000                  411000
<INVENTORY>                                   11260974                13352407                12265860                 9540757
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<LOSS-PROVISION>                                     0                       0                       0                       0
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<EPS-DILUTED>                                      .27                     .83                    1.85                    1.23
        

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