Thank you very much. Although the display is so stupid programmed. All the numbers are trimmed to the left??? normally it's always to the right. This looks stupid and numbers look like they are on it's head and spaces way to much. But this is not the sellers fault but the manufacturer.
Tested quickly and seems to work, however to avoid hum and noise I must use shielded audio cables, avoid ground loops, etc.... (If I fail I will contact you!)
Works like a charm now: used shielded audio cables and well stabilisized power supply. Seller rightly deserves 5 stars for a super product and a splendid service!