Van den Hul VDH1000 Monobloc Amplifiers - HELP

Do you know what the speaker loading on the amps are?
Are the speakers connected directly or through a switch?

Did you manage to fix the amplifiers?

Are you talking about the HBQ-475 or HBQ-1000? I have a pair of HBQ-475 and read VDH supplied many units to a studio in South Africa.

Mine blew not long after I bought them - I was careless by letting the speaker cables short, so it was my mistake. It blew gracefully (no smoke like Krell or Audio Research ;-)

VDH told me the transistors they used were no longer made but they still had some spares left. Only one side blew, but I replaced all transistors from both sides so that the sound would match.

Can you send some photos of the amp, showing the inside too?

No misuse... I blame bad design...

8 faulty amps,sounds like a little misuse going on.Good luck!!