Whoever said Polk specially RTi series is for movies, I am pretty sure he never auditioned it. Making comments out of prejudice is not very helpful for new comers. But I have strong doubt Marantz 6006 may not have enough power to play with Rti-A7. I would strongly recommend first buy the MARANTZ 6006 then carry it to various dealers for audition and make your choice. I have listened KEF Q900. If u think u r real lover of neutral & flat curve then go for KEF. Polk sounds more live, you can say it add little color if properly powered and make an immediate attention. So arrange an audition with MARANTZ 6006 with KEF & Polk, both are available at Profx. Nobody recommend it, but I will make another recommendation, it is USHER V-602, for vocals, details & punch in same package, which is also within you budget. Before make decision arrange a session with USHER V-602. It will be worthy to make you decision.