Has anyone here had any dealings with Tekton, particularly their subwoofers

That’s funny because we put some Magnepan LRS speakers in directly after the tektons and both felt that bass and dynamics notwithstanding, the Maggies were the better speaker. I’m not slamming the DIs, they were competent at everything, just not great.

I've bought from Tekton three times, The Perfect SET, Impact Monitors and some kind of center channel his was selling in ready to ship.   Two of the transactions went fine.  The Impact Monitor transaction did not.  Ordered them with grills.  The speakers showed up and the grills did not.  It took weeks to get the grills and when they arrived they didn't fit, too short by a fraction of an inch.   Let Tekton know and they said they would ship replacements.  After bugging them monthly for about 6 months and no replacements ever shipped, I just got a refund on the grills.   

So, my suggestion is to not get any Tekton speaker prepped for grills.   Eric Alexander still uses pin type grill mounts which suck.  He should have converted to magnetically mounted grills 15+ years ago like nearly every other speaker manufacturer has done.

Also, all eight feet receptacles came out of the speaker cabinets when I replaced them with higher quality GAIA feet.   Had to use glue on all eight inserts to reinstall them.  Not a good look on a pair of $3000 Impact Monitor speakers (they have bunch of factory upgrades).

Tekton is known as much for the cretinous beef it got into with ASR as for its speakers. ASR basically trashed a Tekton speaker and Tekton threatened ASR with legal action. Hilariously Tekton itself brought up evidence during the process that the build quality of that particular speaker was indeed questionable, albeit not for the reasons ASR had written about. 

Threatening legal action on reviewers that don't love a product is not a honorable thing to do. It is also quite ill-advised, because it always ends up in PR disaster (yes, social media is a thing nowadays).

Latest in a parade of businesses that also includes dCS is heretofore obscure Tom Evans, maker of a $30,000 garbage phono preamp no one knew about until YouTuber Mend It Mark published a repair video of the preamp in question. Tom Evans judged the video disparaging and bullied Mend It Mark into taking it down. It worked at first (Mend It Mark took the video down), but look it up and see for yourself how well things are working out for Tom Evans now.

Back to Tekton, regardless of whether their speakers are any good, the question is whether you have much appetite to support bullying, intimidation and anti-competitive behavior with your dollars.

My two cents

Is Corelli Carbon Miller?

Is Corelli Carbon Miller?

I’d say the answer to that question is no.