As for 10 speakers definitely try the 7442 model ceramic speaker.
Ceramic cone speaker.
This came with the nib cone as standard all through the 1960 s and never the pulsonics.
Green 4040 standard cone surround features a new ceramic magnet structure.
Elacs were a popular choice at the time but they are quite bright and chimy.
The g10c is a 10 ceramic speaker with a 35 oz magnet and seamed cone.
The infinity team developed a laminated ceramic metal matrix diaphragm cmmd material that exhibits low mass high velocity and high damping.
What happens when a speaker blows can generally be attributed to two things.
It is deep anodized aluminum where the anodizing ceramic penetrates up to 1 3 of the cone thickness.
The design of speaker drivers and then consequently loudspeaker boxes is the major part of our business and over the years we have driven this to some sort of perfection that attracts many of the leading speaker designers of the high end world.
10 alnicos are more difficult to find.
The fast speaker motor action allows the cones to generate micro cone fine granular distortion which has an alnico like magnet sound to it.
This video covers every step in the re coning of a 1957 jensen p10r alnico 5 speaker from the tweed vibrolux that was featured in a recent video series.
Mechanical or thermal failure.
Accuton make diamond dome tweeters and ceramic cone woofers.
Goodmans would probably give you.
Unfortunately the perfect driver does not exist in the real world so speaker designers select materials that allow them to get as close the ideal as possible.
As the voice coil s effect lowers the available magnetic field of the alnico magnet the speaker becomes less efficient and the voice coil moves less.
The material used to create a perfect speaker cone would need to be as stiff as steel light as a feather and able to start and stop on a dime.
Find them mostly in marshall gear.
Mechanical failure occurs through over excursion of the cone which is when the cone moves too far beyond its limits to the point of damage due to excessive power or low frequencies beyond the cabinet s or speaker s ability.
If you are looking for pristine vintage american cleans and higher power handling look no further than the g10c.
The first crop of speakers in the early 1950s used alnico magnets which is why some people say they sound more vintage than speakers built with ceramic magnets.
Lower cost products got a less aggressive.