I have searched for information on this extensively and can't come up with anything. I'm assuming it's bc I'm pretty novice and this may just be "understood info" among pro's. I have two EV SBA760's that I use with my DJ rig (I know, I know - I'm very conscious of my levels and conservative with my gear, please don't hold this against me) and I can usually get away with running them at about 9 o'clock on the gain level setting on the back of each sub. For most electronic music it will rarely hit limit or flicker lightly. On more low-frequency heavy hiphop (which I play little of) it may flicker more intensely and occaisionally the red VCIP-Protect thermal limit will flicker later in the night (but they have never shut off). I've noticed that the heat sinks get very hot by the end of the night and I assume this is why I'm seeing the thermal light every once in a while. My question is two-fold:
1.) I purchased cheap 6" fans for the back of each sub and just used it for a wedding over the weekend. The heatsinks remained ice cool all through the night and I saw no thermal lights. Also, I feel lie they were hitting limit at a higher threshold. Am I crazy or do those little fans really help out exteneded performance that much?
2) I am deathly afraid of limit/clip lights and thermal shutdown on my gear. If anything even flickers, I turn it right down. However I feel like I'm driving a sports car and keeping it in 3rd gear. Now that's my novice opinion based on limited experience. Also, I have seen bands that run multiple powered subs at ear splitting volumes for hours with just little fans (similar to what I have) on the back, limit lights going like crazy, and they don't shut down all night. Now I believe I understand that the highly compressed music DJ's play is vastly different than a mic'ed kick drum, so maybe that has something to do with it. If I have the fans blowing, is it ok to let the limit light flicker away for bass heavy songs here and there? Am I being too conservative?
As always, I intensely value your experiences and opinions, thank you for any input!