Hi folks. I have a Pioneer SX-880 that goes into protection when turned up to 10 o'clock or so. Sometimes it does it sooner, sometimes it does it later. It plays fine until you turn it up a bit, and then it starts cutting out. If you leave it at that volume, it'll play again for a split-second, then cut out for a few seconds, then come back in for a split-second, etc. It won't do it with no speakers playing--if I turn off the speaker pushbutton it will be fine. It isn't hooked to a dim-bulb. It does it with balance set to either side or in the middle. It's not an issue with my speakers--they are AR11s and I've had no issues driving them with other gear. DC offset and what-not are fine--this isn't an issue with that. This is a recurring issue with the 880, and there have been a half-dozen threads about it over the years. Here are a few: http://audiokarma.org/forums/index.php?threads/sx-880-protection-at-high-volume.620033/ http://audiokarma.org/forums/index....880-enters-protection-when-overdriven.470111/ http://audiokarma.org/forums/index.php?threads/pioneer-sx-880-cutting-out.81118/ http://audiokarma.org/forums/index.php?threads/sx-880-shut-down-for-a-second.152177/ http://audiokarma.org/forums/index.php?threads/sx-880-protection-keeps-tripping.41614/ http://audiokarma.org/forums/index.php?threads/infamous-pioneer-sx-880-protection-on.415600/ So clearly this is a common issue with the 880. Unfortunately none of these threads appear to actually resolve the issue. A few years ago, an AK member @jeffsplat88 claimed to have solved the issue, here: http://audiokarma.org/forums/index.php?threads/pioneer-sx-880-protection-circuit-fixes.679172/ However, I tried upping the resistor to 440 ohms as he suggested, and my 880 refused to come out of protection. I tried bumping the 47 uf 16v capacitor up to 220 uf 25v and it didn't really seem to change things. I am pretty sure the polarity was correct as installed (and as marked on the board), but I tried reversing polarity and it didn't seem to change things. I have recapped the majority of the SX-880. It had this issue before the recap and it has the issue now. Any ideas?