I have the RX6 5.0 for sale. They are very good speakers for the price and have convinced me to upgrade monitor audio's platinum series as I really like their sound signature. They are slightly on the brighter side and pair very well with my warm sounding Sugden Mystro amplifier. The sound stage and imaging is decent. The bass is tight and the mids (helped by the amp) are so good that I am listening to lots of vocal music lately. I mainly play rock (and jazz now) at low to mid volume. You can check the reviews at whathifi and stereophile.
Thank you. I am curious about these speakers too and will give them a proper listen-in next week. I will contact you if I feel they match my amp and speaker cables. If your speakers are still available then, we can discuss them.