Quote:
Originally Posted by Sherlock19 
Do you mind elaborting? not really sure what your trying to say?
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Your MP3 player has an amp in it already, so by feeding it into your corda move, you are double amping, and this is generally a no-no. If your source had a true line out on it, the volume output would be fixed.
By decreasing the volume of your dap, you are lowering the contrast in level between the quiet sounds (in fact, the noise floor) and the loudest sounds. Of course you can make up for this with you amp, but still -- some amount of the resolution between levels is lost.
As an experiment, try setting your dap to the lowest volume level before silence and amping that. It should sound a bit lifeless and blown out.
This is, of course, exaggerating the problem... In the amount you're talking about, you're probably not
really sacrificing enough not to do it since it helps with your hiss. Some amps can really well eliminate hiss, too. Having a really quiet rig is really important to me, too. I hate hiss through quiet passages and between tracks.