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| There are a number of differances. the 91 has more pixels, (57,600 verses 25,600 for the 71), and more power (3000 watts verses 1500 for the 71). There are probably more differances, but these are the obvious ones. I've never seen either one actually work.
For muskie fishing I would guess the 71 would be O.K. If you where going to do lots of deep water fishing, or need better resolution (walleyes on the bottom) then the 91 would be better. I used a LMS-350 for years that has 3000 watts of power and it is a great unit.
To compare the specs go the this site.
http://www.lowrance.com/Marine/default.asp
Doug Johnson | |
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