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Effect of temp. on a speaker/sub
Posted: Sun Apr 16, 2006 7:14 pm
by Jonathan
Didn't notice this before, but I've seen many questions asked about what temperature will do to a speaker/subwoofer. John did us the favor of testing that:
http://www.zaphaudio.com/temp.html
Not exactly shocking results, but at least you have something to go by.
Posted: Sun Apr 16, 2006 7:32 pm
by Darthness
i didn't really read those thoroughly bu ti've always felt that my subs preform better in warmer temperatures... when i get in my car on a fairly chilly morning (chilly in sc... under 50/60 degrees) they don't play as loud, that same after noon when its in the higher 60's and up, they play much better.
Posted: Mon Apr 17, 2006 1:11 pm
by Ryan from Ohio
Excellent info, needs more explanation though!
Posted: Mon Apr 17, 2006 5:35 pm
by swimmerdude
talking about high temperatures.... I have a couple spots on my car that I am going to re-paint in my Auto-body class and when the booth goes on bake(a forced dry) that is usually set at 140 degrees.... will anything happen to my subs/amp?? I dont think it will but just asking...
Posted: Mon Apr 17, 2006 7:07 pm
by geolemon
Two things that seem to counter each other:
Warm temperatures can soften your suspension... which makes it a tad more efficient, but more likely than not, not enough to notice.
I've noticed that Butyl rubber speakers seem more susceptible, where foam ones don't seem to be affected much at all, typically. But realistically, this SHOULD be more of a function of suspension compliance - and it's the SPIDER that really dictates that - so IT'S epoxy is really the variable that's changing, I'm positive.
The voice coil is another animal - it's more efficient when it's cool, and gets less efficient when it warms up - if we're talking SPL competitor, anyway - it might be worth a few tenths of a dB.
For daily use, it's a non-issue - since the thing heats up nearly instantly and stays warm while in use.
Car audio stuff is built to take a lickin' in all sorts of temperatures - even in extremes like we get here in Buffalo, NY (winters in the sub-zero, summers reaching way into the 90's - car interiors into the 120's easy in the sun), the difference in performance is pretty subtle.