For jazz fans that go beyond the usual warhorses from the 50's and 60's ("oh wait, you mean jazz is actually a living, evolving art form?"), the label ECM is a great source for excellent sounding CD's.
It did not take them long to do a good job remastering their analog recording for CD.
And now, they contemporary CD releases are universally excellent.
Relaxed, open, great soundstage and imaging, with lots of "space".
And they seem to continue discovering talented, creative, musicians, with their own voice.
Michal Formanek (bass), Craig Taborn (piano), Avashai Cohen (trumpet), Mette Henriette (sax), Thomas Strønen (percussion), Julia Hülsmann (piano), just to name a few.
Much of ECM's releases can he thought of as "chamber-jazz", IMO.