Good morning, excuse my English, I am from Spain and a translator used for Internet. The problem is that I want to connect an amplifier estereo (Audiolab 8000 lx) to my recipient of a/V (Nad T762). I did it connecting PRE-OUT of Nad to POWER AMP IN of Audiolab, but I do not obtain sound. It helps please. Thank you. I have read that you have the same amplifier estereo and connect it to a Yamaha AX630SE. How have you done it?. Thank you.