Neo Subwoofers? Any suggestions.
in [Live Sound]
|
From: Joe Kotroczo on 2 Feb 2010 10:32 On 02/02/2010 14:39, in article hk9dfh$d3b$1(a)news.eternal-september.org, "Sean Conolly" <sjconolly_98(a)yaaho.com> wrote: > "Tom Ginkel" <tginkel(a)mchsi.com> wrote in message > news:Ic-dnVYtVZVxUvnWnZ2dnUVZ_rWdnZ2d(a)mchsi.com... >> I'm wowed by the neo speakers in my bass rig...light and loud. >> >> Does somebody make a subwoofer, preferably powered, that takes advantage >> of neos light weight? > > I've heard that neodymium can permanently lose it's field strength if it's > overheated. Anyone ever experience that? Any magnet permanently loses it's field strength if heated beyond it's Curie temperature. The Curie point of iron is 768�C, the Curie point of Neodymium magnets depends on the exact alloy, but is said to be around 310�C. However, Neodymium magnets are also said to start losing significant field strength at temperatures around 150�C. -- Joe Kotroczo kotroczo(a)mac.com
From: PeterD on 2 Feb 2010 19:01 On Tue, 2 Feb 2010 09:39:47 -0500, "Sean Conolly" <sjconolly_98(a)yaaho.com> wrote: >"Tom Ginkel" <tginkel(a)mchsi.com> wrote in message >news:Ic-dnVYtVZVxUvnWnZ2dnUVZ_rWdnZ2d(a)mchsi.com... >> I'm wowed by the neo speakers in my bass rig...light and loud. >> >> Does somebody make a subwoofer, preferably powered, that takes advantage >> of neos light weight? > >I've heard that neodymium can permanently lose it's field strength if it's >overheated. Anyone ever experience that? > >Sean > Many magnets will do that... The overheating must be significant however.
From: Phildo on 11 Feb 2010 03:46 "Joe Kotroczo" <kotroczo(a)mac.com> wrote in message news:C78B36B6.AF5F3%kotroczo(a)mac.com... > An the NdFeB magnets are not that new either, > they were invented in 1982. They were called Rare Earth magnets back then and I was lucky enough to work with them close up through a summer job in the lab at a company called SG Magnets. Phildo
From: Ron on 11 Feb 2010 07:21 On 11/02/2010 08:46, Phildo wrote: > "Joe Kotroczo"<kotroczo(a)mac.com> wrote in message > news:C78B36B6.AF5F3%kotroczo(a)mac.com... >> An the NdFeB magnets are not that new either, >> they were invented in 1982. > > They were called Rare Earth magnets back then and I was lucky enough to work > with them close up through a summer job in the lab at a company called SG > Magnets. > > Phildo > > You don't ought to get too close to them there rare earth magnets young Philip, they disorientate all your little swimmers and make you impotent ;) Ron
From: Phildo on 11 Feb 2010 12:15
"Ron" <ron(a)lunevalleyaudio.com> wrote in message news:aq-dnU_C_prAa-7WnZ2dnUVZ8kFi4p2d(a)bt.com... > On 11/02/2010 08:46, Phildo wrote: >> "Joe Kotroczo"<kotroczo(a)mac.com> wrote in message >> news:C78B36B6.AF5F3%kotroczo(a)mac.com... >>> An the NdFeB magnets are not that new either, >>> they were invented in 1982. >> >> They were called Rare Earth magnets back then and I was lucky enough to >> work >> with them close up through a summer job in the lab at a company called SG >> Magnets. >> >> Phildo >> >> > You don't ought to get too close to them there rare earth magnets young > Philip, they disorientate all your little swimmers and make you impotent > ;) Oh dear, I knew I shouldn't have mounted all those samples ;-( Phildo |