Which HDMI is better than the other. 1.3a or 1.3b? Also I have two powered subs in my theater and I connected the each powered subs with Coaxial audio cables because I thought they would be better and I used coaxial y connectors. Out of my Harmon Kardon I did a 1 Male to two female and on each sub-woofer I used one female to two females to connect them to the right and left on the sub-woofers.The subs I'm using is a Cerwin Vegas 10" powered sun and one 15" sub-woofer. Is this better than using RCA jacks or is the coaxial audio jacks the better way to go because its all digital and shielded better. I really need your opinion on the HDMI's and the audio coaxial for my powered subs? Thanks in advance. Take care. Jonathan