Sundown SA 18s

[LosIsATool 5,000+ posts]

The 9500 series can take quite a bit of power too, but again, it's only rated at 1500 RMS. Not too surprised gains weren't significant.

But what happens on that power daily is the question?

 

[trust fund baby]

I never once said anything about efficiency. I'm talking about handling heat better. And in the burp vids of te SA 18 isn't Jacob throwing 8k at one for a 157 or whatever? Is 8k efficient?

I as the one mentioning efficiency. you came back with some unrelated nonsense about heat.

if hes throwing 8k at a 2.5" coil driver, and its taking it... it would again, seem your thoughts on heat are irrelevant to the discussion, no?

 

[sundownz Pro Seller]

The 9500 series can take quite a bit of power too, but again, it's only rated at 1500 RMS. Not too surprised gains weren't significant.

I have no doubt on music / long term at higher power the 9500 would be louder over time, naturally //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif I was surprised it didn't gain much more on the burp, though, considering the huge motor force advantage of the SC motor. I believe if we had even *more* power the 9500 would have pulled away more -- the SA-18 was totally out of stroke (coil is 45mm long).

 

[BassAndBeer]

hey J, do you think your SA 18s are hairtrick worthy? standard ported box under the window line? I just might go with SA 18s. I do wonder though if they will get me in the 150 club. im stuck at 145.3 on 4 15s in a 99 Tahoe with 2400 rms. 145.3 on music that is, never tried it on test tones. 150+ on music is my goal! and im confident 4 SA 18s will accomplish that

Not sure why the fixation on the coil size... the mass / motor force / stiffness ratio works out very well that way.
The SA-18 has a bigger motor than the other sizes & a larger diameter spider.

As far as it's capability... I have done some pretty hard testing on it for SPL purposes :

http://www.caraudio.com/forums/sundown-audio/609389-sa-18-spl-testing.html

Got up to 154.1 dB on the dash & a full 158.0 dB in the kick USACI style -- 8,000+ watts for a burp anyway //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

Long-term music power handling is just as much as the SA-12s -- people run quite a bit on those with no issues. Coil size is not the end-all specification for thermal performance... I made some protos a few years back which were basically an SA motor with 3" copper bifilar coils but ran a different basket (the "Hi-X" basket we offered on Z v.3 12s for a while) without our vent ring (open basket windows) -- head to head it handled substantially less power than a stock SA-12 with 2.5" coil.

 

[massivespl]

If u can't do a hair trick with 4 15s u prly won't do one with 4 18s lol I had 4 dc lvl 4 18s on a dual 580watt amp and could do hair tricks. So I'm guessing ur 4 15 box needs work

 

[BassAndBeer]

it was my first ported box I ever built, 4 cvr 15s its tuned at 31hz and it could do small hairtricks but I want decent hairtricks like where the girls hair looks like medusa lol

If u can't do a hair trick with 4 15s u prly won't do one with 4 18s lol I had 4 dc lvl 4 18s on a dual 580watt amp and could do hair tricks. So I'm guessing ur 4 15 box needs work

 

[LosIsATool 5,000+ posts]

it was my first ported box I ever built, 4 cvr 15s its tuned at 31hz and it could do small hairtricks but I want decent hairtricks like where the girls hair looks like medusa lol

You can get that out of the cargo area but you won't have anything above 40hz unless you have monster subs and power.

 

[BassAndBeer]

yeah, anyhow I made up my mind. going with 4 SA 18s, and if im not satisfied with how loud they are I will throw in another 2 and remove my back seats

 

[massivespl]

Oh didn't know u had kicker. Yes SA 18 be huge improvement

 

[Popwarhomie 5,000+ posts]

To bad obsidian isn't around anymore. $190 for their 18s.

 

[massivespl]

To bad obsidian isn't around anymore. $190 for their 18s.

SI woofers are cheap 18s. Made by nick that made OA woofers

 

[Popwarhomie 5,000+ posts]

SI woofers are cheap 18s. Made by nick that made OA woofers

Yea I had 4 12" obsidians. Loved them. Had sundown stamped on them. I still have 2 sa8s in my truck. Im a big sundown fan. Just wouldn't pay $330 for sa18s.

 

[BassAndBeer]

the SA 18 is the best I can do with the power I have, maybe its the best in its class what other 18s are there that are 600rms at 330? I must research

 

[LosIsATool 5,000+ posts]

the SA 18 is the best I can do with the power I have, maybe its the best in its class what other 18s are there that are 600rms at 330? I must research

There are bigger 18s than 600 rms.

 

[massivespl]

I haven't seen anyone runnin American bass xfl 18s I'm sure if u bought 4 they would be around 300 each

http://m.ebay.com/itm/201084551347?nav=SEARCH