I've just been on the phone with a bloke from CMI who are the Aussie distributors of mackie stuff.
He assured me he has never heard of the "white noise from the docked iPad channel" problem before.
No surprises there. It's pretty much the same answer given by any company who's products quality issues get questioned.
Anyway he's going to be in contact again with the store that sold me my mackie shit box DL1608.
It never ceases to amaze me that an issue like this that I've read so many posts on Internet forums about isn't acknowledged by manufacturers, importers and retailers.
It's almost insulting ..
Should I have bought it in the first place, having the knowledge of this issue?
Maybe not. But I took a punt on getting a good one.
I lost that roll of the dice.
Hopefully the next one will be good, or there'll be a refund required and I'll go back to the good old tried and proven Allen & Heath/DBX analogue gear.
Back breakingly heavy for an old fart like me. But so far 100% reliable.