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From: Denny Strauser on 8 Jul 2010 16:56 On 7/8/2010 8:22 AM, Phil Allison wrote: > "Ron" >> >> I would have thought that if a professional speaker repair company thought >> that it is ok to epoxy broken ferrites, then it's either the only resort >> or there is no serious disadvantage to the practise. I could probably find >> out... > > ** Such speaker damage is so rare few would he ever seen it. > Ever rarer for the cost of the repairs to be economical. > Denny's example is likely a one off exception. > Fuckwits like him love to use them as proofs. Phil flatters me once more. Proof of what? With these cabinets, we had a number of magnets broken because stage hands dropped the cabinets hard, laying them into place. The magnets I mentioned are so big & strong that they had to be demagnetized to repair them. I've laid screws on these cabinets, only to see them stand up on end, because they were magnetized. - Denny
From: liquidator on 12 Jul 2010 14:28
"Ron" <ron(a)lunevalleyaudio.com> wrote in message news:WaidnX7LeJHn9qnRnZ2dnUVZ8rednZ2d(a)bt.com... > On 07/07/2010 12:33, Arny Krueger wrote: >> "Ron"<ron(a)lunevalleyaudio.com> wrote in message >> news:HI6dncYrfrCezqnRnZ2dnUVZ8hudnZ2d(a)bt.com >> >>> I just watched a tv program about building loudspeakers, >>> and it hadn't dawned on me before that they assemble the >>> entire motor and (in this case) screw it to the basket >>> before magnetising the magnet. >> >>> Obvious really. >> >> Whether a speaker builder or rebuilder has a magnetizer is one of those >> litmus tests. It is not that you absolutely need one... >> >> > You don't need one to rebuild a speaker - tho it might be a useful tool - > but you might find it rather difficult to manufacture a powerful magnet > without one. Not necessarily true. Alnico can get demagged, as can neo. Ceramic speakers don't. |