RF7s, RS7s, RC7 and RSW15. Running all in LARGE. Yamaha HT5490 receiver. Popped in Gladiator DVD today and was disappointed at the quality of dialog -- seemed muffled to me. Other ambiant sounds were excellent. Any thoughts? One issue might be that I have to position my RC7 about 12-18" BEHIND (and above) the TV due to room requirements.