The Densen equipment is good for musical involvement ( I really think they do ). I have much music I like, but there are a few cd's that really show that aspect of involvement.
Steely Dan - Two against nature
Very, very good recording. But most important, one of those rare recordings that give you the feeling you are there, with them. It's more a private concert than listening to a recording.
Prokofiev, Varèse - Concertgebouw Orkest, Chailly
Both stellar performances of the Prokofiev and the Varèse pieces. There is happening so much in the details. You can listen to this over and over again and be drawn in to the music.
[url]All Schubert symphonies - Harnoncourt - Concertgebouw orkest[/url]

You either like or dislike what Harnoncourt does, but his interpretation of the Schubert symphonies is very convincing. There is nothing romantic in his approach, it is Romantic as it should be: narrative. "The Unfinished" is my favourite one, it's pure energy controlled masterly by the orchestra. Withing 3 bars it captures you and won't let go untill the end.
I could go on with many others

But if you are into some great music you might want to try David Sylvian, The Tindersticks, Deus, Gorecki Symfonie nr2, anything Steve Reich, lots of music from Arvo Pärt, anything Joni Mitchell, Living Colour and Kate Bush, either Hounds of Love or Aerial.