I just regret one thing: too brief instructions. So for installation, this does not happen correctly. Fortunately, I was able to found a more complete manual on the net (in French). Having already made the connection by following the instructions first. I never found out how to solve my amps Ohms (in fact, it had to be done before starting anything and especially not making the connections). Once the connections and the many settings, good sound reproduction.
My TV does not have the CRA. I had to add an optical cable.