The video of the Pendragon's is from a very reputable reviewer. I don't doubt that the Pendragon's sound is very good and are really inexpensive. However, the caveat is that despite a benign impedance curve, they require a very stable and high quality amplifier to drive them. For comparison, my Legacy Signature IIIs have a lowest impedance of 3.2 ohms, nominal 4 ohms, 94.6 db efficiency (tested) and can be powered by a Sherwood 7100 receiver of 17 solid state watts to sound quite impressive (how I bought them). While I am using a 35 watt Dynaco ST 70 extreme modified (voltage regulated/not ultralinear) with tremendous bass with these speakers which reach down to 16 Hz with 3-10" woofers and a rear firing tweeter, I have also used them with EAR 890 and my 125 watt tube monoblocks. All of these amps are significantly less expensive than the Luxman. If I owned the Pendragon, I would buy a stable, quality used amp. Otherwise, this is Tekton's meat and potatoes, quality speakers at low prices, without the aesthetics of most other brand dynamic speakers sans grills. Notice the reviewer also indicated that these large speakers sound best in large rooms.
As to their $30K speaker, no. I now own Von Schweikert VR9 SE Mk2. My best friend has the VS VR35 Export. Sure there is a big difference in scale, bass and resolution but they represent a range of VS speakers from just a decade ago. Our personal preference over Wilsons, Magico and B&W which we have heard extensively is to be considered but those are not inexpensive speakers either and also require high quality and power amps. I suggest that the new Tekton $30K speaker is designed for large rooms, not 15X10X8 rooms, very typical of smaller listening rooms.
If the Tekton speaker owner can enjoy music properly reproduced using this "patented" technology, wonderful. My friends and I (several are world renown remastering engineers) would not be owning Tekton speakers. My Signature IIIs are in a living room 20X20X10 open to 1,600' of living space and permeate the entire area with gorgeous sound on my little amps. My quite massive VR9s are in my dedicated listening room of 20X15X10 but excellently scale within a smaller space.