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AUDIO FORUMS >> General Discussion and Support >> What would you do... If...
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Message started by HellionDarklord on 06/23/23 at 01:18:44

Title: What would you do... If...
Post by HellionDarklord on 06/23/23 at 01:18:44

I have made 3D models of the dual folded horns that I thought I was going to make. I spent $1300.oo on drivers and a guitar amp for my guitar. ALAS!!! My caregiver told me that if I spend any more money on 'speaker stuff' that he was going to kick me out.

I want to make mass produced sub enclosures for sales at CarTOys. I need to know how I can get this done without spending any more money. I have four SKAR VD-8 D4 drivers that sound really good with my guitar amp and no box.

First lets look at the Infra-Bass sub I call Infra-Bass THunder... 6.99ft of folded horn and infra-bass speaker together.IT is here
https://skfb.ly/oItvQ

What would you do if you wanted to trade the sub designs for a car at @Car TOys and couldn't have income without messing up my disability income. I can do trades though. I don;t know how too get what I want.

Thanks for any help!!!

Timothy McCall

The Infra-Bass Thunder is based off the Wicked One 32 and an outdated patent for the 'Graham Holliman Velocity-Coupled Infra-Bass Speaker'

The PDF is here https://patentimages.storage.googleapis.com/7d/43/05/8700aabd258b78/GB2037534A.pdf

I removed Y from the patent boxes and turned X' into a folded horn. I kept X and V almost the same. I want to fill the sealed...V...enclosure with batting so that it acts like a larger volume and is only 3.4 instead of 3.5ft like recommended by SKAR Audio on their website.. They say that they are not building custom boxes anymore I hope I can get these built. You have to look at the patent to see the difference between X and X' in the Graham Holliman Infra-Bass Speaker patent.

Next we have Rolling Thunder, 18.4ft of folded horn. (9.2ft from one side throat to the mouth.) That is here : https://skfb.ly/oHNIM

Thanks

DarkLord

Title: Re: What would you do... If...
Post by HellionDarklord on 06/23/23 at 02:52:31

O just did the math... 1/4 wave is exactly 9.4 ft at30hz!! I have two of these doubled up and folded in the Rolling Thunder!!!. (I'm assuming that they folded horn acts like two horns and functin like an 18ft horn...)

Title: Re: What would you do... If...
Post by HellionDarklord on 06/23/23 at 02:55:49

i might have done that wrong...

Title: Re: What would you do... If...
Post by HellionDarklord on 06/23/23 at 03:11:16

not done wrong... I trusted God and without any measurements on the air which happens to be 1130... so 1130 divided by 30 is 37.666... then 37.666 divided by 4 for the 1/4 wave is 9.41666. That's .2 longer than the horn I made. God must have had me in mind while I designed this horn. ::)

I didn't know how to calculate the horn length until I saw this video on transmission lines.
https://youtu.be/Q2VL_FHu9AY