Sundown X-12 Prototype

[Kanaworm$ 292]

Very nice! I like the new cooling ring spacer.

These also will feature a 3" coil?

[sundownz 197]

Very nice! I like the new cooling ring spacer.

These also will feature a 3" coil?

Yes, these use a 3" coil

[sefugi 166]

Will this line require similar box sizes as the SA's??

[sundownz 197]

Will this line require similar box sizes as the SA's??

Yes it will -- the same boxes should work perfectly.

[jmanjr 0]

dammit jacob decisions decisions!!

[Alex01 0]

This is the X12 version Im taking when we discussed will have the new regressive spider and or retooled suspension? Oh hell just call me when you get a chance LEAP-X is ready for mechanical plotting etc if you need testing.

[CrazyKenKid 64]

I got a fast question,

why are you using 3inch coils... why not use 4inch coils? is there a down fall to 4inch coils? isn't more always better?

pardon the novice question but I was just wondering why you tend to use 3inch coils.

[Duran 387]

I got a fast question,

why are you using 3inch coils... why not use 4inch coils? is there a down fall to 4inch coils? isn't more always better?

pardon the novice question but I was just wondering why you tend to use 3inch coils.

They weigh a lot more, handle a bit more power but for a 1000 watt rated driver a 3" coil does a better job.

[Bob345 39]

I got a fast question,

why are you using 3inch coils... why not use 4inch coils? is there a down fall to 4inch coils? isn't more always better?

pardon the novice question but I was just wondering why you tend to use 3inch coils.

It has to do with weight and mecanical limitations. A 4"coil takes up more of the spider and limets movement

[jmanjr 0]

more then likely he would have to change the gap on the motor as well and its really not needed. If jacob upgrades the nightshade or creates a woofer above the nightshade you may see a 4in coil come into play.

[sundownz 197]

For a 1000-watt sub a 4" coil is bit time over-kill for one.

Secondly, as was mentioned, I wouldn't have room for a good spider as we are on the 7" landing.

Third, as was also mentioned, the coil would be VERY heavy as we are using copper windings.

---

As an "in general" why we don't have a 4" coil driver yet -- the simple answer is I'm still working on soft parts for that.

Don't worry... things are in the works.

[sundownz 197]

This is the X12 version Im taking when we discussed will have the new regressive spider and or retooled suspension? Oh hell just call me when you get a chance LEAP-X is ready for mechanical plotting etc if you need testing.

This spider isn't one of the regressive units I've shown you but is indeed very nice -- very much like what I'm using on the Z v.3

[ford302redneck 15]

more then likely he would have to change the gap on the motor as well and its really not needed. If jacob upgrades the nightshade or creates a woofer above the nightshade you may see a 4in coil come into play.

Uh, yeah he would have to change the gap of this motor to accept a 4inch coil.

Don't comment if your not 100% on what your talking about.

And a 4inch coil can be used for a 1000rms driver. Hence the new 4inch coil BL from FI. And I'm sure there are other subs using 4inch+ coils and under 1000rms. Its all in the design and application the sub is needed for.

[sundownz 197]

Technically you can find light duty subs with huge diameter coils if you look around -- but they also typically have a short winding height like the new Alpine Shallow Type-R :

http://www.alpine-usa.com/product/view/swr-t12 -- 4 inch coil

Or the JL Audio Shallow :

http://mobile.jlaudio.com/products_subs_pages.php?page_id=245 -- 7 inch coil

IMO -- if the new 4" coil BL has a WW and cooling setup anything like the current model it will be legitimately much more than a 1kw driver... likely would out-perform the older BTLs thermally for that matter. I can only imagine if they still rate it for 1kw that is simply to be very conservative

-----

In any event -- in our case -- we are still working on the soft parts for a 4" coil... have had a spider drawn up for some time but other projects have been priority.

[Duran 387]

They actually did increase the rating for the BL4"

[sundownz 197]

They actually did increase the rating for the BL4"

Makes perfect sense to me

[gcs8 10]

Tejcurrent is starting the rebuild on his ride you should make him some subs that will take ~20-40k across 4 drivers i think for extended periods of time. 3.5" - 5.5" coil maybe? he wont release any details other then the electrical so far. sorry for thread jack.

what would be the biggest coil / power handling coil that would be usable / might we ever see from you?

[ford302redneck 15]

Technically you can find light duty subs with huge diameter coils if you look around -- but they also typically have a short winding height like the new Alpine Shallow Type-R :

http://www.alpine-usa.com/product/view/swr-t12 -- 4 inch coil

Or the JL Audio Shallow :

http://mobile.jlaudio.com/products_subs_pages.php?page_id=245 -- 7 inch coil

IMO -- if the new 4" coil BL has a WW and cooling setup anything like the current model it will be legitimately much more than a 1kw driver... likely would out-perform the older BTLs thermally for that matter. I can only imagine if they still rate it for 1kw that is simply to be very conservative

-----

In any event -- in our case -- we are still working on the soft parts for a 4" coil... have had a spider drawn up for some time but other projects have been priority.

I was just stating 4inch+ coils can be used in low/mid level drivers. It doesn't have to be a 4000rms monster sub.

But most people think bigger is better regardless, even though there are plenty of great 3inch coil drivers, that will meet every need.

[ford302redneck 15]

They actually did increase the rating for the BL4"

I know. But still, had to make a point.

[sundownz 197]

what would be the biggest coil / power handling coil that would be usable / might we ever see from you?

I have some plans for larger diameter coils but they are far enough off that it's not worth bringing up just yet.

[ford302redneck 15]

I'm sure once Sundown completes their new baskets, a large diameter coil sub line will appear.

[sundownz 197]

The X-12 will be around $285 MAP or so -- similar progression in pricing difference per size as the SA line as well.

[jmanjr 0]

nice I will wait a bit longer and see what more info you give and I am interested in team pricing

[sundownz 197]

I will also be adding an internal aluminum shorting ring standard on these -- a feature not commonly found on woofers in this category.

This reduces inductance, flattens the inductance curve, improves power delivery by lowering reactive rise, and also is a bit of a heat-sink (minimal).

Our Z v.2 (and v.3) and Nightshade v.2 models feature this as well and I decided to trickle it down

[CrazyKenKid 64]

I thought I read somewhere that the ring made the impedance fall to low on the Z v2 so you discontinued use of the ring on the Z v2?