Best answer by Mathis
I'm sure you're not "just nuts". Maybe a bit cray cray but hey, aren't we all?!
Seriously though: The embedded player does not use a different encoder for the track you (or others) have uploaded.
All of our uploads are encoded into 128kbps mp3 audio files for the purpose of streaming.
Any chance you have an example URL for a track & site where this is embedded where you feel the quality differs? I'd be happy to give this a listen myself.