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

...and I thank you both, esp. rix....nice link.😉👍

rixthetrick... Happy 9/11...if that's even vaguely applicable to to wish upon us all....:(

No, I've not heard one IRL....but I've noticed the Tymphany LAT in my drilling about, and have considered a distributed sub array as an upgrade towards in the future...
That, and the means and methods of woodworking @ my fingertips with the drawings and specs within the 'jazzman' link you posted, caught my interest. 😊  I've a pair of 12" that have no particular pedigree but are available for fooling about with, the hardware noted in those plans, and the means of x-overing in all manner of fashions.

...pretty much consists of labor and MDF...even the latter I have 'on the shelf', the former a matter of debate amongst my spouse and employees. *LOL*

It's been forever since I've listened to any servo LF items, and they were rare to begin with...the complexity of the approach at the time made them a real commitment to those interested....

The LAT reminded me of the ESS Transar I actually got to heard long ago and far away, back in SF at an audio show that didn't repeat itself despite what seemed a good attendance.  The tech didn't really live up to its' potential, which is mho of the early Ohm/Walsh omnis....dipole/omni fan that I am.
We're in a 'better era' for these means of approach, and the riploles intrigue me....ergo my thanks for the link..

What in particular do you enjoy about the LATs'?
Size, response, general 'fit' in your prefs?

Weather here in west NC is Brilliant today....Spring fever in the Fall, tra la lah....*L*

You have a good one as well, Jerry 👌

*G*  Good morning to you in the Down Under....;)

Yeah, hip to MDF...routes like butter, can be finished to whatever ones' predilections desire (lacquer finishes, anyone?), and will ruin your lungs if your 'inhaled distractions' haven't...
Masking is SOP here in the States for those with any rational amount of synapse in contact with each other, so my comments on unsocial distancing elsewhere are in force.  My use of thinners and myriad other 'non-entertaining' Rx for an aortic valve & pacemaker require (nay, Demand) I do so unless alone with my dog & cats (2)....
Spouse is currently on a jobsite, so considering wearing one when we get about to doing 'the Wild Thang' is a potential, but kinda gets in the way of the mood, but...*shrug*...whatya say...*L*

A Tymphany in the trunk was my understanding of their app, so no surprise there, and no 'eye rolls', either.  I'd thought of 4 in a distributed system in a listening space, but since they're N/A anymore...*tsk*
No induced rattling must be nice....I've thought that 'bassers' here, rattling all the hardware in their 'rides', ought to be in a routine of re-torquing all the bolts 'n screws within, less the vehicle exhibit an URD (Unplanned Rapid Disassembly) at the intersections...

"HEY!  Your driveshaft just fell off!"  Embarrassing, that....since most are RWD....and most sub arrays are in the boot..trunk....'back there'....;) *L*

The 'practical engineer' in me thinks the T-LATs' were victims of a complex design (referring back to the ESS Transar...neat to stare at, an 'interesting listen', but the mass & weight of the parts linking the bits?🙄...), but 'user enthusiasm' may have made a big impression with the warranty dept. and the reviews....  You 'may' be more conservative in the use of your LAT....

I suspect your interest in servo-drives for larger arrays may stem from that...educate my impression if astray....*G*

I wonder if there is any 'induced delay' in a servo setup....when we discuss fractional time 'loops' in a system that 'self corrects' IRT even  if driven by a digital app, on-board or not.  AG is a hotbed for those who hear the footsteps of mosquitos on the violins' bridge in a quiet passage.

I'm joking and teasing....'gimme' a break, Jake'. ;)

Smear in a bass line, esp. with a bass viola would seem a concern; not my current 'fare', but Understood.  EDM/Synthophila is my 'fun distract', but I listen to nearly anything sans MOR C/W....whatever That is, around the US....'default FM', to be escaped from....*L*

*tag* You're 'It', Jerry.... 

"...that boy ain't nothin' but Trouble...."

*LOL*  OK, 'stateside' now....I've inferred your current residence in TX, is correct or no?  If so...Gawd, weather (or not), heat/humidity, and the way 'mericans act will not have mercy upon you.

...but you've likely figured that out by now....;)  Welcome to the US....and I do mean Us....*L*

As a 'native' (of SoCA, not of the 'originals'), I'm still an item of interest to the locals here in NC.  But usually when I 'interact' in some fashion socially predictable...

I'm not a Dr., but try to cause no harm....or much.....;)

Great, no vehicle pymts., just drive and smile the miles....👍

deadmau5, huh?

https://www.youtube.com/watch?v=joWKEX03wd0&list=RDShB_HI6F1f4&index=8

...happy that 'AV' like that wasn't around in the late '60s'~'70s'.... ;)

Now, paranoia infused stuff like nonoises' 
https://www.youtube.com/watch?v=04qPdGNA_KM

'One needs....balance...in what one exposes oneself to....'
Hard to do of late, but lets' ignore that sub-routine for now....maybe ever...

Latency isn't likely an issue for the bulk of us, but you're down with how 'some' react to that line of logic...."I can hear a pin drop impact!"

'K, kewl......me 2, if from an air gun, butt 1st..... (Of the pin....point 1st, negative response....)  Ow. ;)

MOR/CW= Middle Of Road/Country Western...MOR/Pop, and all the rest, you've no doubt been exposed by now.....

Yes, jus' joshin'...I do that a lot.  Audio for me is a 'hobby', a pleasant distract from the usual Life in the Big Sh*tty, although AVL isn't big...just of a size spouse 'n self can live with & within.... *S*

I prefer a high degree of 'flexibility' over sheer 'perfection' at this time, so component choices reflect that here.  No real stand-out items, but that which scratches my particular itch(es)....in a far from ideal space to do so.

...but, that's another story.  And, at my age, I've no short stories anymore.

Best dealt with over some form of 'adult enhancement' of 'legal means'....and....

No, I won't 'go there'....the moderators would have a field day....*L*

Happi Weak-end, J

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*

Ah, Dallas....Wanderland.....*S*  Some queries answer themselves... ;)

😏...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....)

I may find self in your locale in the next year....

Do Not Be Afraid.  Have had all my shots, house-trained, not physically endowed to be a severe threat....would issue advance warning....would wear the foil hat, all that....

Did work in Frisco in the NE quadrant.....an item done needs...a revision of it's vision, so to speak if words were said but not read....*g*

O, dessa....near Midland, home of the Chaparrals...*S*

Followed CanAm racing in my earlier years, the Jim Hall racing cars became the objects of concern to that others feared, perhaps the touchstone of that demi-spoiler on ones' car...

If GM was really serious about having a $erious $upercar to sell (not that the mid-engine Corvette will be a slouch, no), they would roll out a Chaparral....*sigh*

In the 'Ford vs. Ferrari' era, the only lack was the backing of $erious Backing from GM.  If another racing 'auto worship' movie is to be made, there is a good history to be revisited....imho...
To the point of a good friend, temporary employer, and car enthusiast in his way always swore he'd like to build 'one of his own...not to race, but merely to have.'
If he'd lived longer than he did, I'd wager John would have dumped his 230SL in a heartbeat for a DIY 2A~2C....

Go stare at the past, tap a fender for me...;) *S*

Pity one can't buy one, unlike a Ford GT....IF you can get on the list to get one of the latter....

But that's just car lust, and if given my druthers and the means, I'd be in a Lotus nearly anything...*L*

'asvjerry' is fairly obvious, with just a tweak on AVL to as(he)v(ille)...etc.
The 'gull' comes from LateNightTales, Fatboy Slim....

I was struck by the image of a gull in the dark...atypical, with a near-quizzical turn of the beak in the lighting....
...and far more of potential interest than one of me in the dark, either being not very awake or pissed at being so... *L* 

I'd suppose being a fish far from the sea at MC's Audio BBQ....

https://www.youtube.com/watch?v=Z4mbxaa3XL8

...but a random run-in at some audio extravaganza a more likely event, either of which is unlikely.

Perhaps in a later life...;)

*L*  Frankly, I'd ripole 1st vs. the Decware....

Way far easier to fab.... ;)

"Piano finish Black" can hide all sorts of 'oops'....*G*

...not that I've any insolent insider info, y'know....;)

...an irrational thought just seized.....?

A 'sub-swarm' of riploles armed with 8" (or smaller) woofers....

No more 'one box to bounce them...', but cables like a web to trip the unwary or unstable...*L* )