Tobias is correct. I believe that you can import speaker drivers or spare parts from other countries (outside NAFTA) without import duty - however all finished products (like a speaker) get the 6% or sometimes higher "import duty" if not "manufactured" in NAFTA or a special status trading partner. (so technically you should pay import duty on a used US Brand player that says "Made in China" on it) Companies can get around some of these rules by manufacturing most everything overseas and then doing "final assembly" in the US.
How Much Are Canadian Customs on US Made Imports
Since many Canadian Goners import US made stuff from the US, is there a Canadian duty on those goods? I was under the impression that US made goods are not subject to duty under the NAFTA agreement. Please, comment if you have direct experience. Thank you!!!