Anyone know where I can buy a 4 position terminal block for the larger amps like the Korean board style block where they accept 10 or 8 gauge wire ?
The manufacturers will sometimes sell them. Ebay has some but you have to also match up the terminal direction and the shape/type of the pcb terminals.
I don't know where you are, but Parts Express has a nice selection...
12V Power & Battery Accessories | Car Audio - Parts Express
Mike
12V Power & Battery Accessories | Car Audio - Parts Express
Mike