One of the Rotel amplifiers I recently purchased (a 991) seems to suffering from an overactive relay. This amplifier has a turn on delay relay to prevent turn on thump. There is a characteristic click when that relay (opens, closes ?) activates ~5 seconds after the amp is powered on. I'm hearing that same distinct relay clicking sporadically during normal listening. It always seems to click at least once in the first half hour after being powered on, and after that it may click a couple of times in an evening, or I might not hear another peep out of it. The volume or material doesn't seem to correlate with the clicks, and their spacing doesn't seem to follow any repetitive pattern. The amplifier, other than this somewhat annoying relay, seems to be functioning fine. I can't hear any differences between it and another identical 991 I have, whether at low or high power levels. I also can't hear any momentary interruption in the sound when the relay clicks, but seeing as how it is in a biamp setup driving the mid-bass end of L/R speakers, perhaps it is actually dropping out for a moment and it just isn't pronounced. I have this plugged into a Rotel power strip, with the amp always on but unpowered until the strip sends AC power (hope that makes sense). Not sure if that makes a difference... haven't ever noticed anything like this in the other seven Rotel amps I have. What are your thoughts on this? Is it likely to be the relay itself, or a cap or other component feeding the relay? It seems like it could be something that is DIY repairable, especially if it is just replacing a relay (assuming it isn't some hard to find bizarre relay). Any suggestions for where to begin the troubleshooting process?