Speakers working again
Yay
All four of them, in fact. Front and rear... This is good.. For a long time I've not had the rears working, on account of dead amp boards. But I've swapped all four boards now, so the rears work, and the fronts have replaced boards. Hopefully this will solve the annoying DC drift problem I get there.
Meantime, I shall fix the two boards I've taken out, and think about the transfer into the bigger case I have for it, to do the centre and sub, and power controller, and so on...
Though, now I listen more closely, there is quite a hum in the fronts at least... Perhaps a result of the now-smaller line smoothing caps on the new boards? Maybe I'll have to get some 470uF caps to replace these 100's...
And I'll need some DC blocking caps in the speakers themselves, to protect the tweeters. I've already blown two pairs of them, and now I can't get any more of just this type. I have two new ones, but that's it.