fuzzydog Posted March 1, 2014 Share Posted March 1, 2014 Anyone know how a drivers x-max translates to real world performance? I.E. can a small driver with a higher x-max outperform a large driver with a smaller x-max? Quote Link to comment Share on other sites More sharing options...
Deang Posted March 1, 2014 Share Posted March 1, 2014 I don't think so. A smaller driver will have to move more to accomplish the same amount of work - the more it moves, the more IMD and THD it will have. As they say, there is no replacement for displacement. My comments are in the context of each driver being used in the design and conditions it was intended for. 1 Quote Link to comment Share on other sites More sharing options...
Don Richard Posted March 1, 2014 Share Posted March 1, 2014 There are pro sound subwoofers using 12 inch long excursion drivers that will outperform subs with 18 inch drivers. It's displacement that counts. Quote Link to comment Share on other sites More sharing options...
djk Posted March 4, 2014 Share Posted March 4, 2014 Unless you expect midrange out of it. Any driver covering one decade of bandwidth that moves more than about 5mm will have in excess of 3% FMD. Quote Link to comment Share on other sites More sharing options...
DrWho Posted March 4, 2014 Share Posted March 4, 2014 For the same displacement, SPL will be the same, but the higher excursion will be higher distortion as Dean and djk have mentioned. You'll need more power for the smaller driver too. Quote Link to comment Share on other sites More sharing options...
pzannucci Posted March 4, 2014 Share Posted March 4, 2014 Depending how high you are in the frequency and what distortions you can handle. Here is a paper by PWK. http://www.readresearch.co.uk/loudspeaker_papers/klipsch_modulation_distortion_article_1.pdf Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted March 4, 2014 Share Posted March 4, 2014 (edited) Anyone know how a drivers x-max translates to real world performance? I.E. can a small driver with a higher x-max outperform a large driver with a smaller x-max? No. Unless it's in a sub. Edited March 4, 2014 by ClaudeJ1 Quote Link to comment Share on other sites More sharing options...
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