Have these passed the acid test, or is the jury still out on them? Eden doesn't use them at all; some manufacturers offer both Neo & traditional magnets for their speakers. I understand that the Neo's are quite a bit lighter, but for example the Eden 410XLT with non-Neo's weighs in at 98 pounds. The Epifini UL-410 with Neo's weighs 57 pounds. The Avatar B410 Neo is 65 pounds, their 410 Kappa Pro is 95 pounds. Is there a tone advantage to one or the other, or is the weight of the magnet, hence the cab weight, the main factor why a lot of makers are switching/adding the Neo as their main? I also recall reading someplace that Neo's tend to not last as long as ceramic, but that might have just been advertising from one of the companies that only use the ceramic magnets.