For now I am going for the B&W DM110. I want to save money. If I am not satisfied I could always try the DM220 or something else later.
By the way; the built-in tuner of my Pioneer VSX-505RDS receiver is broken, so I bought some very cheap tuners, three of them. A Sony, an Onkyo and a Pioneer. I was amazed by the sound difference between the Sony and the Onkyo. The Onkyo sounded much better. The Pioneer sounded very good too, but it didn't look very nice and was much older.
EDIT: I've got a tuner like this. At least it looks the same:
Marktplaats.nl > Onkyo T-4130 goede Tuner met 3 maand Garantie - Audio, Tv en Video - Tuners