The best "unknown" brand IMHO is Rosinante, owned and run by Ric Cummins. I own his speakers and cables and am incredibly happy with them all. You may be more familiar with Ric's original claim-to-fame, the highly regarded Argent Room Lens. I own a set of these as well. All his products are superb, and actually work together to create a sonic experience where the sum is greater than the whole. I believe Argent and Rosinante share manufacturing facilities.
For several years at CES Ric paired with Joe Fratus of Art Audio to exhibit his products. They always received glowing reviews from those that visited their room. In fact, that's where my friends and I first heard his incredible "Dulcinea" stand-mounted monitor. Using Focal drivers and a proprietary damping material known as "Dark Matter", Ric's been able to sculpt and assemble a startlingly good speaker. I use the word sculp, because besides being an obviously gifted speaker designer, Ric was originally a sculptor. He put those talents to good use in designing the interior cabinet of the Dulcinea, which has no internal parallel surfaces.
Unfortunately Rosinante suffers from the same problem other less well-known brands do, that being an almost complete lack of exposure. Due to the major mags policies of not reviewing equipment unless the manufacturer meets certain distribution requirements, this fine equipment never gets the press it deserves. However one exception is Clement Perry's review of the Dulcineas and Art Audio Jota amp in "The Stereo Times". The full review may be found on the Rosinante website, www.roomlens.com.
My audiophile friends, including a couple of dealers all marvel at the performance of Ric's speakers and cables. In fact I actually sold my Valhalla IC's and replaced them with Ric's Jaden line of cables after a direct comparison. Not only did I improve the performance of my system, but saved a bunch of money to boot, since Ric's cables are not nearly as pricey. BTW, Ric winds all his cables by hand.
OK, enough. After reading through this thread I realize I'm starting to sound like a paid advertisement. I have no stake or interest in Rosinante or Argent, other than I'd like to see the line prosper so that other audio enthusiasts can experience the level of performace and joy that my friends and I do.