4th order box for 4 eD 9Kv.2's, designed by 80INCHES **PICS and VIDS**

[IonSQL 10+ year member]

OK, I had 80INCHES design a 4th order BP for my quartet of 9Kv.2's.... I had them in a sealed box, 1.4cf, and was happy with the output (139.1 @ dash on TL), but wanted to try something different...

After a couple days of listening, I'm pretty pleased with the results.... definitely louder than the sealed setup and hits MUCH harder, rock is pretty awesome. The subs are still taking the full 1200w and not having a problem with it. The lows are nice and, again, louder than with the sealed box. Overall, the setup has a fuller sound.

Low pass is set to 80Hz, SSF to 30Hz, but I'm going to play with backing the SSF down a bit to see if I can get some more lows out of it

Played some Lil Jon, Ying Yang twins, etc.... obviously the strong suit for this design. No complaints!

The videos below were shot playing Late Night Tip and Georgia Dome.

Questions, comments?

VIDEOS:




PICS:

Click to read more...

 

[kicker06 10+ year member]

I love how the coils are sooo close. lawl

But anyways, dude, your boxes are amazing, but you don't need anyone to tell you that.

Port is sexy!

8x4?

 

[vetkilr 10+ year member]

Saw a pic of this the other day............

Sweet.

I couldnt get the last 3 vids to work though.

 

[IonSQL 10+ year member]

Thanks guys...

Yeah, apparently the last 3 vids haven't been "approved" yet or whatever.... it says to give it a few minutes...

 

[IonSQL 10+ year member]

Port is sexy!8x4?

5 x 12 //content.invisioncic.com/y282845/emoticons/naughty.gif.94359f346c0f1259df8038d60b41863e.gif

 

[kicker06 10+ year member]

Nothing wrong with 60" of port.

So sexy. I don't see how you attached the port to the front.

How'd you do it?

 

[IonSQL 10+ year member]

Nothing wrong with 60" of port.
So sexy. I don't see how you attached the port to the front.

How'd you do it?

Glued & clamped to the front baffle, then used a flush bit on the router to cut it out... and then 1/2" roundover bit //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[kicker06 10+ year member]

Oh sweet. That's a good idea. So is it like a tongue and grove?

 

[IonSQL 10+ year member]

Oh sweet. That's a good idea. So is it like a tongue and grove?

Nope, just secured with glue //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif It's strong enough //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[mattmcss 10+ year member]

very nice build on the box, looks like it slams good.

 

[IonSQL 10+ year member]

very nice build on the box, looks like it slams good.

Thanks //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif I'm pretty happy with the performance for 4 8's...

 

[Thieroff 10+ year member]

Wow

My mans got skills

CT

 

[IonSQL 10+ year member]

Wow

My mans got skills

CT

Thank you very much! //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

I uploaded the videos elsewhere, these should work...

 

[9512ds 5,000+ posts]

We will have to get that metered big guy //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[IonSQL 10+ year member]

We will have to get that metered big guy //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

You betcha!!!!