Members SteinbergerHack Posted October 1, 2016 Members Share Posted October 1, 2016 Caps have ratings up to 400 degrees Fahrenheit. If your amp is a hybrid containing solid state chips and tubes' date=' heat can be a concern because those components normally operate with lower voltages and lower temps and may fail due to high temps, but a standard amp 100W or less isn't going to have issues.[/quote'] 400F???? 85C is the standard upper temp rating for ceramic capacitors, which is 185F. X7 or mil spec B gets you to 125C/257F. The highest rating I've ever seen is Mil spec C, which is 150C/300F. Electrolytics (power supply filter caps) generally don't go anywhere near that high (85C standard, some available at 105C), and they are the ones that a fan can help protect. Totally agree, though that hybrids are where the biggest risk is, due to the mix of component types. Link to comment Share on other sites More sharing options...
Members WRGKMC Posted October 3, 2016 Members Share Posted October 3, 2016 Sorry bout that. I must have used a bum on line calculator to convert from Celsius to Fahrenheit. The point that you don't need a fan for most amps is still valid however. You need quite a few power tubs going before heat becomes an issue. I haven't seen many fans in amps rated for less then 100W. Link to comment Share on other sites More sharing options...
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