Has anyone heard or built an Axel Ridtahler (Ridtahler dipole) sub woofer?


http://jazzman-esl-page.blogspot.com/2011/01/ripole-subs-are-underway.html

I am also researching a Slot-loaded W-frame sub woofer design, has anyone here ever used this design or heard it?

I made an enquiry about using two 12" servo subs and the response was that they are tuned for really only one frequency.
I have heard they will produce a chamber resonance at 200hz-300hz, which is way above where I'd want to cut them off anyway.

I am chasing 20Hz to 35Hz fill in the bottom end with my stand mounts, the servo amp has tunability built in which aught to help integration.
128x128rixthetrick
https://www.youtube.com/watch?v=oEutbPu2YwI @ 44:30...
CA is consuming itself in a fashion unknown by yours truly., but perhaps feared yourself previously....FBS was good to give the 'Home Folks' a moment of appreciation, which those who fight the impossible for us more than deserve....*hand on heart, but not for any one flag*
Haven’t built it but I’ve seen a much smaller version and the owner said it was the best he’s ever heard.

Nelson Pass slot loaded open baffle project

https://www.firstwatt.com/pdf/art_slob.pdf

Another DIY option that has a fan following.

Decaware wicked one.

https://www.decware.com/newsite/wo32.htm

Yep a dinky di Aussie living in Texas, used to hot and muggy actually. Most Texans are pretty decent, I like their straight up honesty (generally) and take it or leave it, I make no pretence have no fakery nonsense generally. It works for me, and my wife she's straight forward, which works for me.

Enhancements? recreational pharmaceuticals?
Patent No. 6,630,507

I'm madder than a cut snake, crazier than a frog in a sock, so I don't partake. Now if I were in a situation where I was in pain, or seizures, or well there's plenty this 'lil herb can help. Maybe I read you wrong?

What is he building in there, hahaha? I may have read him wrong, I just think it's sport for him to stir a bit - we're all friends in here, far as I see it.
I see it's a MTV clip, I purchased every issue of the best of MTV live, great live acts. Highly recommend if you like live sounding 80's it's magic.

Don't get me wrong, fast bass is my goal too. I just don't doubt it's a capable technology, and I'm seriously looking at it down the road, you know, after some other projects get finished. Like my long over due finishing of the first two QRD17 diffusers I made with solid cherry wood. That has been a project I tell you, splitting the wood on a band saw, joining it, biscuit joining at times, then assembly.

Yeah Texans, they love their country music, which is kinda blended with pop compared to Aussie country. Not really my scene, but if it's clever humor, I can listen no worries.

I am fortunate, and my wife she likes music and dancing, so I get a lot of support and WAF. She keeps coming home with random LP's, she wants me to invest in a vinyl spinner, it's going to get costly I 'spose.



😏...we probably ought to move all this to PMland, but if some are not amused, they can walk on by....

'cept @danager ...Thanks for the firstwatt link, which opens on 'the Heil Years'...have a pair of the large AMT's, just got 'gifted' to the 2241AM xover for their original subs....*S*👍

Hard to find LF that can pace with an AMT, but anyone with 2way 'stats likely have the same issue.....but therein lies the challenge and the goal, right? 🙄

So, rix....which part of TX?  No, not a 'trick the rix' query....just a personal alignment of locale(s)....but, having 1.5 decades in HOU, one develops certain degrees of appreciation tainted by a level of 'WTF Now?!' of Texarcana....

Fav:

Can screw up the working parts of a brick.

(Not that anywhere else is immune, no....)