Audi0
Super Member
I won a pallet at a auction with some audio goodies on it. The 1970s technics amp is what I was after however it came with some sound dynamics speakers.
The amp checks out good besides some scatchey pots and good dc offset. I really dont think its what caused the issues with speakers.
The speakers were in everyway blown. Every driver was dead and the crossover was fried. Both windings in the tweeter were physically melted and the woofers as well.
How much juice does it take to do this? Over 50 volts (judging by cap value)? If you look at the picture the cap is swollen and the inductors both started melting. I've never seen damage this extreme before. What caused it?
The amp checks out good besides some scatchey pots and good dc offset. I really dont think its what caused the issues with speakers.
The speakers were in everyway blown. Every driver was dead and the crossover was fried. Both windings in the tweeter were physically melted and the woofers as well.
How much juice does it take to do this? Over 50 volts (judging by cap value)? If you look at the picture the cap is swollen and the inductors both started melting. I've never seen damage this extreme before. What caused it?