Van den Hul VDH1000 Monobloc Amplifiers - HELP

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

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

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?

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