[TenTec] speaker

[nw4p@martha.xtn.net]

Gentlemen,
  Has anyone ever replaced the speaker in the 961 PS for a better one?? 
(Open expansion chambers has taken it toll on my hearing!!)
Or, what external speaker could one buy that would give
good clarity especially in the 3800-4200 cycle range.
Any input would be appreciated since it is getting harder
and harder to hear all but good quality audio.
       Thanks in advance,
       Richard      NW4P

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