I have lived with a pair for about 8 months now. They are extremely vivid, and life-like. I have come to describe the bass as "nimble", and I have not heard the like. They do pace, rhythm, timing like nothing I have ever heard before. To be sure, the single driver sound will not be to everyone's liking, but I can't imagine living with anything else after my time with my pair. Tocaro supposedly have re-designed the driver, out of necessity as their supplier for the cone paper apparently got a little flaky. The sound is supposed to be even quicker and has less of the quirky sound some attach to the single driver design.
The January Stereophile has a review of the single driver Fujitsu Ten Eclipse TD712z speaker that uncannily describes what the Tocaro sounds like in much better audio rag terms than I can. Issue 47 of HiFi+ also had an excellent treatise on the single driver design, discussing the earlier Eclipse 510 as well as the Fourth and Third Rethm speakers.
I recognize Creston's back wall in the photo. I thought you had never been to the shop in Austin?
They go plenty deep. Sorry, I only know the Rehdekos by reputation, though I know that the Rehdeko design is the natural predecessor to the Tocaro. If you own a pair, you are truly blessed.
My listening room floor is on a concrete slab and carpeted. One of my evening rituals is to stretch my legs and back on the floor in front of my listening chair, and I am frequently surprised to feel the bass through the carpeting. Funny, when I first got my Dynaudio Confidence C2s several years ago, one of the first things I did was measure how deep they went with my Radio Shack dB meter and Stereophile's test CD; and in fact they went well below 30Hz in my room. The bass from the Tocaros is so much more tuneful and "nimble", as I said above, I have thought several times to get out that test CD and actually do the measurement. However, I enjoy the music so much that I have never gotten around to doing that, as I would much rather listen than measure. That, for me, actually is an odd new approach to my listening rig, and would seem to be very telling about how my enjoyment of the hobby has evolved in the past year or so. A stand up jazz bass just sounds so much like a five foot gut string being plucked, I simply do not need to validate the experience with numbers on a meter.
Something I forgot to mention above is how the Tocaro's great talent is the ability to convey the emotion of the musical event. That is what first grabbed me at the dealer's shop in Austin, and is what finally trumped any original misgivings I had about the tonality of the single driver design. This particular aspect to the speaker is impossible to convey through a computer keyboard and really has to be experienced to be understood.