I owned a pair of DQ-10's (mirror imaged) from 1978 (when I bought them new) until 1994, when they were damaged by the Northridge earthquake. I was very happy with them while I had them. Instead of getting them fixed, I replaced them with Thiel CS3.6's, which are a major improvement., and which I recommend. They have similar power and space requirements; I'm driving them with an Aragon 8008BB (200W/ch into 8 ohms, 400W/ch into 4 ohms).
Good luck!
Good luck!