Hello everyone,
It´s official: I´ve met a guy with the same 8200 head and he hooked it up to my speakers: hardly any audible pop.
Mine gives a thump that makes you fear for your speakers every time you turn it on.
I´ve replaced every cap/elco and resoldered everything on the power-pcb. It´s definitely something on the power-pcb because preamp is not hooked up, only powersupply(30volts red/black, 60volts red/red, giving 80 volts after rectifier) and speakers. It does so on left and right speaker, switching does not make any difference.
The rest of the amp works fine. Right now I´m thinking maybe inrush current to the big elco´s and experimenting with surge ntc´s for that.
This is the schematic(also as attachment) from drtube: http://www.drtube.com/schematics/mar...8280-63-02.pdf
I love the amp, but I love my speakers too! Please help!
Greetings, Bram.
It´s official: I´ve met a guy with the same 8200 head and he hooked it up to my speakers: hardly any audible pop.
Mine gives a thump that makes you fear for your speakers every time you turn it on.
I´ve replaced every cap/elco and resoldered everything on the power-pcb. It´s definitely something on the power-pcb because preamp is not hooked up, only powersupply(30volts red/black, 60volts red/red, giving 80 volts after rectifier) and speakers. It does so on left and right speaker, switching does not make any difference.
The rest of the amp works fine. Right now I´m thinking maybe inrush current to the big elco´s and experimenting with surge ntc´s for that.
This is the schematic(also as attachment) from drtube: http://www.drtube.com/schematics/mar...8280-63-02.pdf
I love the amp, but I love my speakers too! Please help!
Greetings, Bram.
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