Most modern speakers do not have anywhere near the size magnet or magnet strength of a good vintage speaker at all, nor anywhere near the voice coil size and type and amount of wire around the coil, which gives the vintage type driver a tremendous advantage in efficiency and control over cone motion. They use a type of magnet that does not deteriorate over time as well as a fiber surround that does not deteriorate either. I have 70+ year old vintage models that work and sound like they were made yesterday because of these reasons.
Speaker magnets
Three questions:
1) The coil in a speaker when fed with current from the amplifier will produce its own magnetic field, presumably 4 layer coils more so. Over time does this ever have any effect on the characteristics of the speaker magnet?
2) Modern speakers have massive magnets compared with most vintage speakers. What advantage do they give a modern speaker over a vintage speaker?
3) Does the magnet in a speaker deteriorate to any noticeable amount just due to age?
1) The coil in a speaker when fed with current from the amplifier will produce its own magnetic field, presumably 4 layer coils more so. Over time does this ever have any effect on the characteristics of the speaker magnet?
2) Modern speakers have massive magnets compared with most vintage speakers. What advantage do they give a modern speaker over a vintage speaker?
3) Does the magnet in a speaker deteriorate to any noticeable amount just due to age?