True, from your brief description, it appears that you may need only about 4-5' cables. The strength of the signal sent and the sensitivity of the receiving unit are factors in addition to the loss in the connecting cable. Generally up to about 15' a 28ga HDMI cable works well. I'd suggest you get their 28ga Product ID: #4956, or what other length that you need.

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Enjoy the music, not the equipment.