[GSteg]

Originally Posted by CBFryman

has a far greater SPL capabilities while retaining equal SQ.

equal sound quality..maybe if god spread SQ dust powder on it. the XXX is going to have less distortion. that's the advantage of flat BL.

DD doesnt tell where the woofer will reach maximum excursion but i would say around 2800w.

they don't tell you when the sub reaches max excursion because they can't. no company will tell you unless they specify a box because excursion is dependent of the enclosure.

a 5cuft enclosure tuned to 30Hz will offer great SQ. a put about 65-75sqin of port area on it for good port velocity.

IMO, a 3.5 cubes box would be better than 5 cubes. a ported box, unlike a sealed box, will give you more peaks when you increase the volume. Sealed box do the opposite, i gives you a smoother response. 5.0 cubes would be where you would more SPL than SQ.

the XXX has 32mm xmax 1 way which is 64mm total and the 9500 has 75mm... a little less than 1/2" more.

like sr20 said, the 75mm figure is peak to peak xmech or however DD wants to call their magical number. That is not close to one way xmax at all.

the 9500 offers a flat BL curve just like the XBL^2 motor but isnt as efficent.

the 9500 uses the standard motor. That motor (same topology as found in many other subs) has no way of channeling it's magnetic flux, so you're going to lose BL as soon the coil is moving away from it's rest position. If the 9500 has a flat BL curve, I can't wait to see what a parabolic curve would look like

the XXX will be hitting in the high 130's low 140's and the 9500 mid-high 140's... and in a pure SPL set up into the high 150's...i think there have even been a few cases of a single 9500 breaking into the 160's on the old Mic's.

the XXX is not made to shoot out SPL out of it's cone. It's made for sound quality. Ask David or Scott from RE. It is no way a sub made just for SPL. Just straight sound quality, but it happens that it can get loud also. Kinda like the W7.

[quote]

ive heard 3 and the responce is very flat at low and high volumes.

[quote]how are you able to tell if the response was flat with your ears? I personally can't, at least not at high volume anyways. That is unless, you got a built in RTA in your ears. lol. I am unfortunate to not have that.

but even the 9900 has good flat responce because it is a very flexible woofer and needs to be able to play at the resonant frequincy of whatever vehicle it is chosen to play in.

all subs can play at the resonant freq. of the car. even a cheap 5" sub can do that. lol. Again, how is the 9900 "flat response" measured? Every box is going to yield different response, and even then, you're going to have to EQ it to make it flat after it's in the car. No sub is flat straight out of the box

the only reason DD markets to SPL is because that is all kids who also buy mainstream crap will notice DD. it is the same as JL, but DD doesnt waste their time on marketing ploy's like JL does and therefore saves cash and their woofers dont cost more.

have you seen JL's marketing department? It's smaller than 15'x15' i believe. It's the dealers that are spouting out the words. You have contradictred yourself. You can buy a 13w7 through a dealer for $600 (providing the dealer does not jack up the price). the 9500 is $650 as you said, and the 9900 is about double of that. How does their woofer not cost more?

all higher end DD woofers are hand made and precision built. as apposed to RE who has theirs flued and asembled by machien.

machine assembled does not mean it's cheap. I bet the car 90% of the people are riding on are machine assembled. Yet we don't see them break down everywhere. What if I were to say the W7 uses custom parts and the only regular off the shelf parts used is the 4 bolts to hold the basket to the motor? Does that mean DD is cheap because it uses off the shelf parts? of course not.

i think you need to show more respect to DD if all you have heard of DD are SPL enclosures and amps in every day drivers...

I have respect for DD, hence why I bought my pair of DD3515 3 years ago. lol. Sounded nice, but it had to go because I was looking for better sound reproduction.



I'll put on my flaming suit now