How is the tracking force, it should be just about 1,2-1,6 grams. There is a scale on the right side of the tonearm.
I could also sound like the pre-amp is overloading because of too high sensitivity. What preamp are you using?
Sorry for not answering in Dutch, but I can't write in that language
Beocenter 9300, Beogam CD50, Beocord 5500, Beomaster 3400, Beomaster 4400, 2 Beogram 4000, Beomaster 8000, 2 beogram 8002, Beovox S-75, Beovox MS150.2, Beovox RL6000, Beovox S-35, Beomaster 6000, 2 Beocord 9000, Beocord 8004, Beocord 5000, Form 1, 2x Beolink 1000, Beo4, MX3500, LS4500. Born 1993.