djaddy
發表於 2011-11-10 12:32
As mentioned: 鋼沙會cut頻
以保留 "原味"架仔廠線不用鋼沙, 原因是 electric current induces magnetic fields. 鋼沙 is not a natural but an intrusive material that will intrude the flow of electric currents. So it's not a good shielding material. 鋼沙 may sound more dynamic initially. However, overtime 鋼沙會cut頻. Which means lot of audible details will be missing.
http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/magcur.html