Can you explain the feature and what it does to music? How does it "enhance" the music in a way that other devices can't?
I would appreciate if you were to say more about having 7 bands. Is it 7 bands per channel? I'm torn between the Fiio and the RME and I need more than 5 PEQ per channel for my room calibration EQ for speakers (I don't use EQ on headphones) - and judging only about this, the Fiio is the way to go. I hear so many great things about the RME product that I'd even go for it if I could get 7 PEQ per channel.
Also, does anyone knows how "destructive" for the audio quality is the PEQ implementation in the RME product? I read recently that Fiio's implementation is done differently and comes for the first time without distortion, through their novel DSP thingie. Any help on this specific part would be greatly appreciated.