neodymium vs ferrite magnets in loudspeakers

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neodymium vs ferrite magnets in loudspeakers

Post by AdiT »

Why the manufacturers of speakers/loudspeakers have not switched to production of speaker with neodymium magnets (especially, those for low freq). In the past two years, are producers who have won several international awards, some even innovation awards, with speakers that use ferrite magnets.

I know there are manufacturers who use neodymium magnet but represent a small percentage.
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Re: neodymium vs ferrite magnets in loudspeakers

Post by Hugh Robjohns »

If ferrite can generate the required flux density within acceptable size and weight constraints, why go to the expense of neodymium?

H
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Re: neodymium vs ferrite magnets in loudspeakers

Post by shufflebeat »

While we're at it, can we agree a pronunciation?

...of the N word, that is.
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Re: neodymium vs ferrite magnets in loudspeakers

Post by Hugh Robjohns »

neo·dym·i·um \ˌnē-ō-ˈdi-mē-əm\
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Re: neodymium vs ferrite magnets in loudspeakers

Post by Logarhythm »

Hugh Robjohns wrote:If ferrite can generate the required flux density within acceptable size and weight constraints, why go to the expense of neodymium?

It makes a huge difference to the sound... of marketing communications ;)
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Re: neodymium vs ferrite magnets in loudspeakers

Post by shufflebeat »

Hugh Robjohns wrote:neo·dym·i·um \ˌnē-ō-ˈdi-mē-əm\

Ta.
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Re: neodymium vs ferrite magnets in loudspeakers

Post by Folderol »

Logarhythm wrote:
Hugh Robjohns wrote:If ferrite can generate the required flux density within acceptable size and weight constraints, why go to the expense of neodymium?

It makes a huge difference to the sound... of marketing communications ;)

It also makes a huge difference to the manufacturers bank balance.. coincidentally, yours too in the opposite direction.
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Re: neodymium vs ferrite magnets in loudspeakers

Post by IvanSC »

I can lift my 2x10 bass speaker box with one hand since I swapped the original ones for Celestion neos.

Same reason I have swapped out a lot of my gear. Size and weight.
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Re: neodymium vs ferrite magnets in loudspeakers

Post by Folderol »

IvanSC wrote:I can lift my 2x10 bass speaker box with one hand since I swapped the original ones for Celestion neos.

Same reason I have swapped out a lot of my gear. Size and weight.

It makes a huge difference to your general fitness, as you don't get so much exercise :tongue:
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Re: neodymium vs ferrite magnets in loudspeakers

Post by AdiT »

IvanSC wrote:I can lift my 2x10 bass speaker box with one hand since I swapped the original ones for Celestion neos.

Same reason I have swapped out a lot of my gear. Size and weight.

if we talk about weight, IMO line array systems used for mobile scene, have the most benefit from neodymium
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Re: neodymium vs ferrite magnets in loudspeakers

Post by BigRedX »

The main market for Neodymium loudspeakers are musicians who gig regularly and have to move their own gear without the benefit of a road crew. So full-range powered PA cabs and bass cabs are where all the innovations are being made and where you'll find people being enthusiastic about the technology.

It's not really an issue with permanent installations like studios, or bands who are successful enough to be able to employ people to move all their heavy speaker cabs about for them.

Also remember that neodymium speakers are not simply conventional ones with lighter magnets. As soon as the chassis no longer has to support the weight of traditional magnets, the designers have a lot more scope for saving even more weight and improving the performance of the speaker. This means that that neodymium based speakers are never going to sound the same as "traditional" ones. And as we all know in the field of audio, what is technically better is not always as pleasing to the human ear that has years of being attuned to a certain type of sound.
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Re: neodymium vs ferrite magnets in loudspeakers

Post by AdiT »

Image

If we take the speaker "A" and turns into a speaker with neodymium magnet "B" the only possible change that I see is some holes marked in red.
If you reduce the size of the chassis, will start to vibrate.

What other changes do you think are possible, to make it sound different?
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