From a construction and design standpoint, these speakers are sonically indistinguishable from any typical box speaker I have heard. So, in that regard I would consider these speakers a success. In my mind, while I do like unique designs, if they are done at the expense of good sound, then that presents a problem.

One of my goals of this project was to give the RS52 a try, and I am very happy that I did. The midrange performance of these speakers is especially sweet, in a way that only a dome midrange can do. It blends extremely well with the other aluminum-cone drivers, and the transition from driver to driver is seamless. It did take a fairly involved crossover to implement this driver, but this is partially due to the targeted second order slopes. I have a feeling that shooting for a fourth order slope may actually require fewer components-on the midrange at least.

I would describe the overall sound of these speakers as laid-back and clean. I paid careful attention to the voicing of the upper midrange region, with the hopes of creating a very smooth sounding and non-fatiguing speaker. I believe I succeeded in this from my listening sessions, and my voicing preference can be seen as a bit of an upper midrange droop in the measurements. All in all, this is the type of speaker that is difficult to find any faults with. I am tempted to build a second pair as a conventional tower; I think as a demure 8" wide, wood-veneered mini-tower, these speakers would be very sweet sounding and tough to beat.