Hi, as the title suggests i need to know which type of connection or lead eg optical or digital cable would give me the best sound quality possible. As far as i am aware i do need to connect my basic SKY box via a digital or optical lead to my newly purchased PIONEER SC-LX82 a/v amp does the same apply for the SKY HD box or would the HDMI lead on the SKY HD box take care of the audio as well. Thank's