Looking at the AUDIOPHONICS AP300-S250NCX for nearfield bookshelf speakers (desktop), question about audiophonics warning

[Justin8888]

On the site it says

This amplifier does not have a decoupling capacitor, so it lets the DC component of the signal through. Make sure your source has no DC component present at the output. The DC protection of the module switches on at 12VDC which is very permissive.

What does this mean? I was planning to use with a Fiio K17.

Will also happily take input on the amp itself. I have not yet picked speakers, but most seem to be in the 100-200W range.

 

[NTK]

It means the amplifier will amplify DC, and therefore make sure there is no significant DC in the signal feeding the amp.

The Fiio K17 page says that it has output DC protection, so it should be fine.