Nissan Xterra: Two DD 9515's, Stetsom 4k2d final results!!

[dtbrown 10+ year member]

If you didn't see it here is the original post with some testing and pics.

http://www.caraudio.com/forum/showthread.php?t=398118&highlight=xterra

With the exception of the alternator and an extra Kinetik 2400 coming next week today was the final testing for music tuning and spl gains.

Since the original post the box has been painted, resined and better power wire run from front to back batteries and to the amp.

Today we tested power with the new wiring with the Stetsom 4k2d and got 3200w @ 12.2v and spl averages 151.4db from 43-46hz and peaked at 151.6db at 45hz.

Efficiency of the box over 150.0db is .1db for every 100w so we're hoping that with the addition of the alternator we'll gain around 1000w and hope to gain about 1db over our current peak spl. And also to be able to hold 150db with music.

This past weekend at a Db Drag event with the lack of upgraded alternator we music in Bass Race 148.5db and peaked spl 150.8db. Below is the video of the run and pics of the show

Db Drag run against Bumpin Buick

Final

Click to read more...

 

[Brian_smith06 10+ year member]

I like the small port.

 

[Annnarbor84 5,000+ posts]

So you did all those numbers pretty much stock? Very nice if so, what did he place at the show???

 

[dtbrown 10+ year member]

So you did all those numbers pretty much stock? Very nice if so, what did he place at the show???

What do you consider stock? But he took 3rd at the show for Bass Race and first in his spl class.

 

[Annnarbor84 5,000+ posts]

What do you consider stock? But he took 3rd at the show for Bass Race and first in his spl class.

Stock alt

 

[Annnarbor84 5,000+ posts]

Nice places!!!

 

[squeak12 10+ year member]

What class is that...SS1-2?

 

[dtbrown 10+ year member]

Stock alt

Yes stock alt. During the bass race run his voltage was in the low 10's. DC engineering 270 amp alt is coming next week along with another 2400. Alternator is probably good enough but he got a killer deal on used 2400 and figured it couldn't hurt to add another.

 

[dtbrown 10+ year member]

What class is that...SS1-2?

Yes. This is his daily system so he ain't going to be breaking any records anytime soon. lol

 

[Annnarbor84 5,000+ posts]

Yes stock alt. During the bass race run his voltage was in the low 10's. DC engineering 270 amp alt is coming next week along with another 2400. Alternator is probably good enough but he got a killer deal on used 2400 and figured it couldn't hurt to add another.

Very nice indeed, sure the after market alt will help alot. Nonetheless very impressive

 

[thegreatestpenn 5,000+ posts]

I'm saving right now for a 4k2d. Such a nice little monster

 

[Annnarbor84 5,000+ posts]

I'm saving right now for a 4k2d. Such a nice little monster

Indeed, I am all about the small footprints anymore

 

[dtbrown 10+ year member]

I'm saving right now for a 4k2d. Such a nice little monster

This weekend was the first time I finally got to test the 4k2d on good electrical from another person car and we got 5000w 12v running it a little less then 1ohms rising to 3-4ohms. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif I'll admit it's not the most efficient amp on the planet but for size that totally makes up for it in my opinion. Even with minimal electrical like you see here over 3000w at 4.5ohms after rise is still crazy. Besides the fan being a little noisy it's the craziest best sounding little amp I've every tested

 

[thehardknoxlife 10+ year member]

Wicked hair.

 

[Annnarbor84 5,000+ posts]

This weekend was the first time I finally got to test the 4k2d on good electrical from another person car and we got 5000w 12v running it a little less then 1ohms rising to 3-4ohms. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif I'll admit it's not the most efficient amp on the planet but for size that totally makes up for it in my opinion. Even with minimal electrical like you see here over 3000w at 4.5ohms after rise is still crazy. Besides the fan being a little noisy it's the craziest best sounding little amp I've every tested

Very nice results after rise!!!!//content.invisioncic.com/y282845/emoticons/eek.gif.771b7a90cf45cabdc554ff1121c21c4a.gif