A very brief insight into the line outs...
Using X-Cans V2 and Senn HD-580s
D777, very punchy bass (great on Pink Floyds 'When the tigers broke free'... with all the bombs going off) but also a sharp treble (hurt my ears to listen to Pink Floyds 'Time'.
D-E905, much the same bass as the D777 - Very punchy, and this unit is ever so slightly more controlled in the treble (the clocks on 'Time' don't sting your ears
quite as badly as the D777 does)
D-EJ1000... not much in the way of bass
compared to the two older units, but what there is, is great quality! - and the treble, its so smooth that you could mistake it for a babies bottom! - its brilliant!!... The clocks on 'Time' sound... perfect! not too bright, and not too dull... I couldn't ask for better, unless it was from a full size CDP!
[Edit]
unofficially the D-EJ1000 is better than my Marantz CDP for seperation!! - one of the reference tracks for testing out CDPs in the UK was Pink Floyds 'High Hopes'... There is a church bell, which if your system is good enough will play out of the right channel no matter how busy the rest of the mix is... now, i'm not declaring miracles here, but... what I am gonna say is... that I could swear that i could hear that bell more with the PCDP than I could with the CDP!!
[end of edit

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As i said, very basic... but, I've only had them at home for 3 hours... not much time for play-time yet

I'll still (hopefully) do a full blown review at the weekend