I have contacted to a company makes field coil magnet and decided to convert alnico 288 to field coil magnet 我和一个制造励磁磁铁的公司接触过后,决定把288的钴磁改装成励磁磁铁。
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The 288 field coil sounds similar to alnico but extremely smoother , therefore warmer and does not kill your ear as of 288 when the music loud 励磁288的声音和钴磁类似,但是,更加顺滑,因此更加温暖,并且在大声鸣放时不会让你耳朵刺痛。