Dear Gunbir/ JB...
I wonder what I have with Saturday evenings, but it sure makes my fingers tingle...
I checked up.. ID was founded in 1993 or thereabouts, longer than IA which started operations near the end of that decade.
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Originally Posted by Autophile Its nice that Illusion is doing good in yachts, which are non existant in India. Any of us would consider ourselves lucky to come across a yacht install, anyways my point is that spending money in making so called waterproof or water resistant speakers for car audio is pointless. |
I have been on Gautam Singhania's dhow, it's not exactly a yacht but needs a music system all the same, and is exposed to the elements. Vijay Mallya also owns one and there are many other unsung heroes of the sea. That isn't too many by any standards, but surely not non-existent. The point is that IA doesn't make speakers waterproof for marine application alone, and last of all with any consideration for India. Do you know Mr. Ravi Jagtiani by any chance, he used to be with WKH in Delhi earlier? He has installed Illusion Audio in Bombay for a marine application. And the Illusions are still merrily riding the waves without a sweat and you know the water here just isn't like the water in the seas of the US.
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Originally Posted by Autophile The cones / motors can wear out much before baskets, does not matter if it is stamped or cast again depends on subwoofer mounting (inverted or normal). |
Nope..Most synthetic cone materials are immune to water to the extent of stuff like Polypropylene being nonbiodegradable. Carbon fiber and kevlar also have no long term effects of being exposed to water. They remain the same. What do you mean by motor? Earlier you said that a voice coil exposed to water will fail, do you still think so? Aluminium does not corrode when exposed to water, mild steel does. Powder coating etc. help steel chassis bear the brunt, but they are no match in weather resistance for aluminium baskets. So materials matter a lot, and have nothing to do with mounting the driver.
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Originally Posted by Autophile The low powered and light motor subwoofer don't need heavy baskets its only required in the high power subs with big magnets. But there is a certain sect of people in car audio claiming to percieve the difference in sound of stamped basket vs cast basket (cast basket being superior according to them) but I think its stupidity. |
Umm... It's not exactly a sect of people that determine whether a subwoofer deserves a cast basket or not and percieve the difference thereof, it's calculated based on some stress theories. Factors that influence the decision would be the mass of the magnet system used and the amount of anti-vibration strength required with the aim to ensure that the basket is sufficiently strong to support the magnet without straining due to bending moments after mounting and that the basket is not induced to vibrate and produce a ringing noise due to the pressure created by the cone assembly movement. Anything over 400-500 watts rms would be a high-power subwoofer in my opinion.