This discussion went off-topic time ago already, becoming just a nice setup chat, I hope that's not an isssue. Well, I tried several different records and although digital radio wasn't that bad, the vinyl sounded somehow muffled. Since I replaced the amplifier, the turntable and the loudspeakers the culprit wasn't clear. So I started with switching the MS150 with the MC120 and the difference was stunning. Crisp trebles, clear mids and a punchy bass - there it was again, the MC120's signature sound, even at lower volumes. I'm so happy now.

Even though, I don't believe that the MS150 were meant to sound that bad. Apart from the subwoofer/-port and the much bigger cabinet they seem very similar to the MC120's. Cosmetically, they're like new, they also must have been re-foamed. I won't give up on them and dare my first soldering adventure one of these days by having them recapped. Fortunately, I recenty changed job and plenty of my new colleagues are skilled in electronics. Never too old to learn something new, I think.