I would recommend getting any older full sized soundcraftsman amp And take it apart. if your goal is to kill the dc at the rails before it reaches the speakers they did this back in the 80s
This question is aimed to TRUE Elec Engineers, not fuse or wire directionality believers.
Has any of you ACTUALLY worked with and recommend a SSR which does not introduce any audible distortion on the speaker line and which can operate with a large range of trigger voltages (12 - 48 VDC, may need to have on board voltage regulator for this range). I am building a speaker DC protector and do not want to use electro mechanical relays becoz of DC arcing and contact erosion issues. It needs to be capable of switching up to 15 amps at about 100 volts.
Only TRUE engineers reply please.
Thanks