Does the hs2 exhibit a lip synch problem when hooked up to an amp via digital optical out, either for playback, or when it is simply passing sky etc through it. Presumably to get sky (not plus) through the amp (and prologic II), the hs2 would need to be on, or would the dig out to amp still work with the hs2 off. I have sky tv to hs2 av2 /av1 to tv all rgb, so would need to keep it hooked up this way if possible. The amp I was thinking of was the pioneer c301, so couldn't use normal rca phonos to connect sky to amp direct, but it would be linked via scart to hs2 to amp- so would that transmit the audio with the hs2 both on and off? Cheers, Ali.