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<blockquote data-quote="sundownz" data-source="post: 7218593" data-attributes="member: 549523">As far as the shorting ring in the DD -- probably a magnet ID ring which would not require any gap widening. DD already runs ultra tight gaps in their drivers... at least all of the ones I have re-coned have been so -- I don&#039;t imagine they could make them all that much tighter for production without risking lots of rub.I started messing with shorting rings on the Z v.2 and NS v.2 lines -- I like the benefits so I&#039;ll be implementing them in all but our cheapest woofers as I revise / release the lines. IIRC DD started doing it on the 9500 a while back; at least their site indicated as such. I have a 3500E motor here that does not have one, though -- as I accidentally knocked the top plate off I have a good view //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gifPretty cool, though -- would be nice if DD said exactly what the changes were as it&#039;s always interesting to hear about sub improvements.</blockquote>

[QUOTE="sundownz, post: 7218593, member: 549523"] As far as the shorting ring in the DD -- probably a magnet ID ring which would not require any gap widening. DD already runs ultra tight gaps in their drivers... at least all of the ones I have re-coned have been so -- I don't imagine they could make them all that much tighter for production without risking lots of rub. I started messing with shorting rings on the Z v.2 and NS v.2 lines -- I like the benefits so I'll be implementing them in all but our cheapest woofers as I revise / release the lines. IIRC DD started doing it on the 9500 a while back; at least their site indicated as such. I have a 3500E motor here that does not have one, though -- as I accidentally knocked the top plate off I have a good view [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] Pretty cool, though -- would be nice if DD said exactly what the changes were as it's always interesting to hear about sub improvements. [/QUOTE]

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