Hi all My old NAD3040 sounds great and works pretty much perfectly. There's one very minor niggle, which is that the L+R channels kick in at slightly different times when I switch the amp on (the gap is about two seconds). Is this a sign that I need to open it up and give it a service? Any ideas what might be causing this? If it's something that will develop into something more serious, I'd like to catch it early. Cheers.