alphaee

Responses from alphaee

Convert USB to SPDIF
Here is an affordable solution: https://www.electricalengineering.xyz/videos/lt-usb-to-spdif-converter/If you want something more better here it is as auxinput already mentioned.https://apos.audio/collections/brand-spotlight-matrix/products/matrix... 
Impedance Matching Question
micro – iTube2  is good to go, but it is multiple function device. An audio transformer will be a great option. 
How to check a speaker is Genuine or Fake
That's a valid note. 
soldering iron
Any soldering iron can go fine. It depends on your soldering skills. You can grab a great solder under $20 as others mentioned. Get some solder iron cleaner as @kosst_amojan mentioned. Get a soldering station as well. It works more professional. 
How to check a speaker is Genuine or Fake
Hy Kosst, Before posting this I surfed the forum and can't found a solution to my question. I don't think there's a similar thread anywhere.Bjesien, The speaker box is in 7/10 condition. 
How to check a speaker is Genuine or Fake
Yeah, that's fine. Thanks. I was not familiar with their counterfeiting protection services.