Thx alot Josep !!!

Yes, I noticed the missing upgrade from Duncan's side :-) No hum in my monitors.

The transformer looked from memory a bit smaller than the one of my 565, so I started to wonder, if that missing winding story was really correct.

Unfortunately I had my 565 already closed and could not directly compare anymore and who likes to rip his system apart all the time. I have access to two technicians, will try to consider the modification, as I guess now I'm forced to take that challenge up ;-) Will need a few more fuses for 250Volts then. So I will give it a try, give me some time to check. If I run any risks I won't and in the end, if it can be done, it should look clean, professionally soldered and wired as well.

Last edited by Andreas; 2010-03-26 08:06.
Cheers, Andreas
My Meridian history 565/519 (1996), 861 (2000), to G68ADV, to 561 today, tri-axial cardioid studio monitors, self build acoustic measures, ceiling sails, corner bass traps, trial Helmholtz resonator, REW, Apple (TV, Mac, IPAD), SBT, Calman