This pretty much sums up your arguement. But Im sorry, if what you say/imply were true, JL would advertise their sub as having more useable excursion. You can say well at that volume level, who cares if its 5% distortion, or 30%. But Im sorry, that is why we have standardized (or relatively so) stats like xmax, so we can't have manufacturers take the same attitude you have that distortion thressholds dont matter at that volume level. They matter, that's why the W7 does not have 40mm+ of excursion, sorry.
As for your cooling links, great. Unfortunately I never said the W7 doesn't have innovative cooling technologies in it, I said I dont agree with all the cooling advantages you say the W7 has, that 15-20mm of added useable excursion you say the W7 say has for example.
Xmech doesn't affect xmax? So you are saying "is the point at which the sub runs into actual mechanical problems during excursion" has no bearing on where that sub's xmax is? So a sub could have an xmech of 25mm and an xmax of 30mm? I dont think so.
Im fully aware of the differences between a suspension limited driver and motor limit driver. If what you were saying were true, any motor limited sub could simply advertise its suspension travel as its xmax. //content.invisioncic.com/y282845/emoticons/nono.gif.eca61d170185779e0921b0faa9704973.gif
Your definition of gracious and mine must be very different. Again, if the W7 can excurt this much, so 'graciously' as you are trying to say, why does JL shoot themselves in the foot and say it has less useable excursion? Perhaps because they understand suspension travel is not the lone determining factor in what is considered useable excursion. And perhaps because they know discriminating customers wont stand for an explanation of at 'those SPL levels distortion becomes increasingly difficult to differentiate from distortion inherent to the environment' when they complain their sub sounds like ass when pushing it hard.
I fully agree the W7 is a great sub, alot of new tech in it. But you come here and say it has a new cooling system, so it cools better. It has a heavier coil, so it handles power better. It has more suspension travel, so it has better excursion, and gets louder etc. Im sorry, but links to tech papers from JL touting their new cooling system is hardly 'proving me wrong' that the W7 cools better, worse or the same as any other specific sub. The links you posted prove the W7 has a new cooling system. Yes it looks nice. No its hardly proof it cools 'better' than another specific driver. Test it for yourself, compare the subs in question, or at least provide a link to someone that has, if you are going to prove anything to me. Otherwise you are just proving you are reading JL's tech papers.
Your ignorance really begins to annoy me. You foolishly and ignorantly assume "usable travel" and xmax to be synonymous, but no one but your foolish self ever made that asinine assumption.
Here are the facts, since you aren't educated enough to understand them. The XMAX of the 12w7 is around 32mm, and around 34mm for the 13w7. The Xsus (this is NOT Xmech, it is Xsus, which is the point where Cms drops to 25% of the at rest value). The XXX and Brahma have an Xsus of around 32mm. The Xsus of the 12w7 is about 45mm, and around 50mm for the 13w7.
Look at a DUMAX or Klippel report if you are actually dumb enough to try and debate that FACT.
As Kmart said, while the Brahma and XXX hit a literal brickwall at about 32mm (shortly after Xsus, the spider actually physically HITS the top plate/bottom of the basket), whereas the W7 won't hit Xmech until around 50mm+.
So in summary, the xmax of the drivers is extremely close, but if you try and push a XXX and Brahma much beyond 30-32mm, you are going to DAMAGE THE DRIVER AND POSSIBLY RIP THE SPIDER CLEAN OFF.
With the W7, it can quite safely and easily move all the way to 45-50mm depending on model, before Xsus actually hits. That's still USABLE excursion. When the spider hits the top plate, that's where usable excursion ends.
Now given that we know 45mm is > than 32mm, we can safely conclude that the W7 has more usable travel.
I'd swear I was teaching this to a ****ing 4th grader. Try understanding what you are talking about instead of attempting to disagree with people who are simply stating facts, which you seem to consistently and miserably fail at comprehending.
So beyond Xmax, the W7 is going to have LOWER distortion than the Brahma or XXX, and unlike the Brahma and XXX, it can very safely be excurted to 45-50mm, depending on model, before the suspension locks down, and even further before the spider ever comes close to hitting the top plate.
With regard to the cooling system, it's simply a FACT that having cooling above top plate and venting in the former are going to promote better circulation, and therfore better cooling. We needn't consult JL's tech paper to figure that one out.
I hope that's clear enough for you, and I hope you finally have realized that you don't have any idea what you are talking about.
