Two SF1606G like that used in the 500 and two SF1606GA. The two A-suffix have their center leg connected directly to ground.
I don't have a known good sub. If no one else does, check with ZED Audio.
I don't have a known good sub. If no one else does, check with ZED Audio.
If you can't find any, I have a 1000/1 here that blew a hole in the board. I was gonna try and repair it, but I think it's a lost cause. You can have the rectifiers from that if you want.