Help Designing 6th Order Trunk

[FadedSpy 10+ year member]

Two AB XFL 12's @33-35hz

Here's the design. I need help with measurements...



It can be up to 36" Wide x 14" Tall x 48" Deep

Can someone help me generate a cut list?

Click to read more...

 

[FadedSpy 10+ year member]

I tried messaging Buck but no response, so I'm turning to the general community for help and guidance.

 

[KurtisLow 10+ year member]

Try CSCStang.

 

[FadedSpy 10+ year member]

I messaged him, Thanks!

 

[dbjunior 10+ year member]

Just so you know you need two separate tunings for 6th order. The inner is your low side with very little port area the outer is high side with a ton of port area. Is the 33-36Hz where you want to peak?

 

[FadedSpy 10+ year member]

Just so you know you need two separate tunings for 6th order. The inner is your low side with very little port area the outer is high side with a ton of port area. Is the 33-36Hz where you want to peak?

I don't know where I want to peak at. My current box is 4^ft net @ 34hz-ish and I like the way it sounds, or at least I'm used to it now. I don't know much about bandpass boxes but I know you can get more out of your woofers by using 4ths or 6ths instead of standard slot port boxes. I'm fairly new to car audio but I like to build things and I really enjoyed building my current box that they're in now. I just want to see if I can get more out of them. They hit a 140.5 at the moment.

 

[negolien]

Is your current box prefabed or did you make it yourself? Seems like you should be getting louder than that.

 

[FadedSpy 10+ year member]

I made it myself. It's 4^ net about 4.5^ gross. Port is 5" wide x 11.5" tall x 28" long running off a vfl 150.1. The box is forward facing and sealed off from the trunk

 

[hispls 5,000+ posts]

I can assure you you do not have the money and time to get this right. If you're dead set on building exotic boxes for fun, experiment with a smaller one for a single sub. Understand what it is you're doing and how it works so that you can plan to be able to modify as needed once it's built and sounds worse than your current box.

Considering that picture doesn't come with dimensions it's safe to assume it just looks impressive and nothing is to scale and it's completely un-tested. Bandpass designs aren't free output. They're output at the expense of bandwidth... or if you actually want a wide bandwidth you basically wind up with a worse-sounding sealed box.

 

[CSCStang]

i can assure you you do not have the money and time to get this right. If you're dead set on building exotic boxes for fun, experiment with a smaller one for a single sub. Understand what it is you're doing and how it works so that you can plan to be able to modify as needed once it's built and sounds worse than your current box.
Considering that picture doesn't come with dimensions it's safe to assume it just looks impressive and nothing is to scale and it's completely un-tested. Bandpass designs aren't free output. They're output at the expense of bandwidth... Or if you actually want a wide bandwidth you basically wind up with a worse-sounding sealed box.

x2

 

[FadedSpy 10+ year member]

Sounds like I may be in over my head with this one. I was hoping to just say, these are my subs, here's what i want to do with them, who's got a cut list? I'm open to other suggestions on how to get more out of them, I just thought I could really dial in their potential in a 6th order.

Thanks for opening me eyes and crushing my dreams here guys! Haha

 

[Popwarhomie 5,000+ posts]

More power.

 

[FadedSpy 10+ year member]

More power.

vfl 175.1?

 

[Popwarhomie 5,000+ posts]

4k

 

[timhof13 10+ year member]

If you run a four k on two xfl's you better set your gains right. They will not take clipped signal at 2k each for long