Thank you for your answer, years ago I didn't know this forum.i had the same problem with 2 4200 and 212 active. all wrong from the shop. starting problem: internal jumpers. the dealer forgot to put the longer one that "bypassed" the power supply, I resolved problem with 2 external RCA cable from 2nd to 3th channel, one for 4200, this sound problem was obvious, correctly immediately. second problem, much worse because less obvious than the first problem, so I realized it after 6 months because I wasn't satisfied with the sound as it wasn't what I expected and then the dealer told me I had to get used to the new aktiv configuration: I opened the speakers and I realized that the internal connection was wrong, they were in active configuration but with the passive filter connected ( in the passive configuration: passive socket with the passive connector, active socket with the active connector; correct active configuration: remove the two plugs, put the passive in the active socket, or vice versa I don't remember and leave the other empty. in the active the shopkeeper had simply exchanged my two connectors).
Unfortunately in Italy I have had some bad experiences with hi-fi shops, I'd like to open a discussion about our experiences in hi-fi shop..only a shop in Cremona city is five stars!
When I realized it, I didn't want to believe it. I was afraid to turn my system on after reconfiguring it, I was also luky that nothing broke. If something breaks it was definitely my fault...
Anyway, in the end I told with the dealer about the problem and he was embarassed, of course I waited until nobody custemers was in the shop.
In Italy there is ignorance about Linn even on the part of those sell. Years ago in a shop of Milan I asked information on a Majik DS (no DSM) do you know what the shopkeeper told me?
Answer: if you have only a power amplifier you can not use a DS, because no sound, you have to take a preamplifier if you want to enjoy music...I stayed like