What kind of Alnico on Alnico speakers?

[Rex_Rocker]

Always curious about this.

The Alnico speakers Celestion make are usually 100dB efficiency, but they're lighter than the H ceramic magnet speakers (which tend to be 100dB as well). To my understanding the Alnico speaker's magnets tend to be 42 oz while the H Ceramic magnet is 50 oz. I wonder why this is? Is it just because of the voicing? Because Alnico Celestion speakers tend to be bright? Or do they use some sort of supercharged Alnico sorta like A8 or something?

 

[jeremy]

its almost always a5 as far as i know. theres a lot of pieces to consider when making a speaker, so i dont know how voice coil vs cone vs magnet vs spider vs ? makes a difference

 

[Rex_Rocker]

its almost always a5 as far as i know. theres a lot of pieces to consider when making a speaker, so i dont know how voice coil vs cone vs magnet vs spider vs ? makes a difference

I've always wonderd about that myself too. Because it is my understanding that an Alnico Blue is just basically a Greenback with an Alnico magnet. Can't say for sure, though, but at least the modern ones (and the original ones too, I think) have the exact same cone.

 

[jeremy]

the blue was there first, the g12m came after. might use the same cone but i dont know

 

[Rex_Rocker]

the blue was there first, the g12m came after. might use the same cone but i dont know

Yeah, that's what I meant, I just worded it backwards, LOL. But I'm almost sure the originals were just basically the same speaker with the magnet swapped.

And it looks like the current ones have different doping and dustcap materials, not sure about the voice coil. But I'm 100% certain they both use the modern standard 1777 Kurt Mueller lead cone.