I just checked the link to the 5507 and if you clik on the picture in the upper left for the rear view to see the connections, look at the bottom right model#. PR-SC887. Hmmm verrry interesting.
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SAMSUNG 5265/ ONKYO PRO PR-SC886/ FRONT SPEAKERS DEF TECH MYTHOS 1'S/ CENTER DEF TECH MYTHOS 9/ SURROUNDS ENERGY C20'S/ OPPO BDP-83/ OUTLAW 7700 POWER AMP/ VERIZON HI DEF DVR.TWO UBER 10 INCH SUBS FROM ORB AUDIO