I have bought the soudbar htl2160/12 with serial number kx1a1246134447.

When i activate the surround, there is a bigh echo, it s inaudible !
Without the surround the echo is less important.

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The subwoofer is on the left, and the sound bar in front of tv.

Sorry if my ensligh is not very very good, i m french.

Tank s everyone....