Buck 5,000+ posts
little alien on campus
If a loudspeaker is breaking at or below rated power in 5 minutes or 5 years it is either because somebody lied about power handling or there was a problem with manufacturing/materials or there was some other kind of gross abuse or user error happening. There's nothing that happens after (insert number of hours and the magic ritual of your choice here) that is going to be the difference between survival or failure of a sub. Or put another way if you're breaking a woofer, it would have broken under those conditions regardless of what ceremony you performed beforehand.
I think many break-in believers do claim this, and yes, compliance does change and is (and has been) measured. I offered to share some of my own data on the subject as well as providing several links to data that others have measured but I was attacked saying that doesn't mean anything. Which ironically is more or less true, because the changes in specs (most of which which happen very quickly) do not predict any audible difference over time between new out of the box and the point where they wear out and fail.
As are loudspeaker parts. In fact, I'd wager any well made modern subwoofer used within its limits will out-last the moving parts in a double diaphragm pump.
Sundown Zv2 spider here 8 3/4" version. Seems to suffer no ill effects from folding it in half and feels noticeably softer after just a minute of bending it back and forth in my hands. Since DD came up a lot, they use multiple layers of rather soft and thin spiders.
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Like the Sundown spider in the pic above?
Considering this myth is wildly propagated by some ultra expensive snobophile home theater product manufacturers I'd say it's as much as anything just setting the stage for the buyers' expectations when they first get the product installed and start comparing it to whatever they had before or whatever they expect. It's basically saying "hey, don't return this right away if you don't like the sound, just give it a few weeks/months and it'll sound totally different!" Not so much about "breaking in" your new speakers/cables/whatever snake oil they just sold you, but breaking in the listener to get used to the different sound or even just setting the stage of expectation which the user will create for himself via psychoacoustics.
As far as people gaining with fresh subs/recones this would be extremely install dependent and certainly inaudible (under 1dB, and in reality probably only a couple tenths, or in other words the amount of variance you'd likely experience due to changes in the weather, humidity, air pressure, etc.). If anybody could just go ahead and gain a full dB based on the suspension of a new sub those manufacturers would either be designing parts to maintain whatever specs gain so much or be scrambling to keep up with demand for fresh new parts to give competitors the edge.
And finally posting some of the music with <30hz material in it. Cool. I'll remember that if I ever have the occasion to mess with low tuning.
No you won’t, because you’re just being an ******* and demeaning to everyone really.
You were not attacked; go look at your very first post. You’ve got the biggest fangs here.
I’m a break in knower. A lot of woofers it doesn’t matter, some it does. I’d rather chew on marbles or bang my head into shards of class than deal with your c*nty attitude you immediately take sometimes. It’s like you’re so right that you’re wrong, because nobody is listening to your midol needing attitude.