Jump to content
Sundown Audio

Revisiting the X-8 : New Thread


Recommended Posts

Our prior unit had extensive supplier issues to the point where we've just had to write off all of that work and tooling.

In any event... I decided to re-visit the X-8 idea and base it on our SA-8 v.2 frame tooling.

The first challenge was to make a GREAT spider for a 2.5" coil on an 8" woofer... which is difficult and we used extensive software optimization before tooling. Fortunately our basket allows a spider about 10mm wider than pretty much all other 8" frames out there.

Since the spider is the main challenger we had that tooled first and then built up a test bed to test with :

CIMG6783.JPG

* Former was too tall / big in diameter for the SA-8 dust cap to work so I had to use an SA-12 dust cap; which came all the way out to glue onto the surround edge.

CIMG6784.JPG

* SA-12 Motor

CIMG6785.JPG

* We had an adapter machined to mount the motor; I decided to have some extras made for some brave DIY folks that may want to make a similar project.

CIMG6786.JPG

* There is the beastly new spider tooling -- this thing worked great !

I was able to test the X-8 spider with an SA-12 motor / coil and SA-8 v.2 cone and surround. The X-8 will have it's own unique motor, cone, and surround for production. Those parts aren't done yet and I wanted to test the spider so we built it like this for now smile.png

I am very pleased with the spiders excursion capacity and linearity. I will get some Klippel measurements done on it soon as well to verify... my "push the cone Klippel" indicates that the spider has a very linear compliance to it for quite a bit of travel in both directions -- anxious to see the actual plots smile.png All of the computer optimization on this spider definitely paid off with the result.

  • Like (+1 Rep) 2

- Jacob Fuller

- Owner, Sundown Audio

- Sundown Audio on FACEBOOK

- Please DO NOT PM ME -- use my email address -- [email protected]

Banner_468x60.jpg

Link to comment
Share on other sites

Another sick product from sundown! Good job Jacob!

  • Like (+1 Rep) 1

if you put a DD-1 in your amp terminal and it immediately went up in smoke, i would be concerned.

If you shoved your dick in the terminal and it didn't blow up but a month later it blew up, i STILL WOULDN'T be able to blame your dick.

It just does not make sense at all.

Link to comment
Share on other sites

Once I get it in a box I will get some music videos -- our QC test track doesn't really reflect how it will actually sound. We just use it for this type of test as it has many varying frequencies and is pretty hard on any driver.

- Jacob Fuller

- Owner, Sundown Audio

- Sundown Audio on FACEBOOK

- Please DO NOT PM ME -- use my email address -- [email protected]

Banner_468x60.jpg

Link to comment
Share on other sites

8" in beast mode. By the look of it, it's moving around 2.5" p-p? Love the looks of that 8" though... I'm sure the final motor structure will make it much more purdy!

My Build Log- T E A M S U N D O W N A U D I O -

2013 DbDrag WF SS1-2 - 5th Place 154.6db

2013 MECA Mod3 CA State Final Champ 153.4db

Powered by: Sundown Audio

Link to comment
Share on other sites

Sexy beast sub is a sexy beast!!! Damn that thing is beefy

13 Kia Forte Build!

07 Hyundai Accent Build

***Super Seller***

N8ball2013

And then he gets to say ok all you guys were right. im sorry for being a dummy poo poo head.

ndjs.jpg

Link to comment
Share on other sites

DAMN!! I want one. how long before they are ready for sale?

and can you post a pic side by side with a stock SA-8

OiRYFHf.png

////Alpine, Eclipse, Load Boss, Pheonix Gold, MB Quart,Digital Desings, Memphis, Stinger, Periphial, MTX, Visualogic

Link to comment
Share on other sites

Great looking sub man! I love the look of that beefy ass dust cap on it! In for teh vids.

2005 Dodge Ram 1500 Regular CabPioneer MVH-P7300Orion 800.4Planet Audio Big Bang series 6.5 componentsJL G17002 Diamond Audio D610D4's

Build log

women drivers no survivors

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Who's Online   0 Members, 0 Anonymous, 345 Guests (See full list)

    • There are no registered users currently online
×
×
  • Create New...