I've owned several different pair and have heard a number of their floorstanders and bookshelf speakers. I've even heard the top of the line. The T1 and 1010SEN. The same time as I heard the Altec 19. A fellow speaker enthusiast owned both.
For a long time I used a pair of their older bookshelf speakers as my main speakers. It took getting a pair of Spendors to better them.
I like the way they sound. The older models have really nice silk domes. Some of the newer speakers went to metal domes but I think the top of the line stayed with the silk domes. I believe they (RBH) OEM for other companies. They are made in Ogden, Utah.
If you get a chance to try a pair, take it. I've not heard a bad pair yet.