kevzep
Its all about the Music
Learned my lesson, really hope I dodged a bullet. The thing was I had the DBT in line but it wasn't brightly lit enough to concern me. At the limited 34V DC, the heatsinks were cool to the touch.
I am going to pull the transistors to re-apply insulators/thermal paste tomorrow. This receiver runs warm, it seems. Even with the voltages within tolerance (10%) the power supply heatsink runs so hot, I can hardly believe it. I may buy a small fan for my cabinet at home.
What I would do is to get some of those little heatsinks with the adhesive on them for the regulated supply as pictured. The ones I had on hand I needed to bolt on, but if you have to order some I'd get the adhesive, ones, a lot easier to fit.That is of the most concern, the actual amplifier itself doesn't run hot enough to be of concern.
Having said all that, I always run Pioneers idle current less than what the manual states, the SX1250 for example, I am running that at 65mV instead of 100mV. Pioneers do seem to idle hotter than is necessary.
This helps a lot with heat at idle, and it doesn't affect the sound contrary to popular belief.
I can't remember what the SX1010 idles at, but you could come down 10-15% in mV.