It’s been around a year since I got my old trusty Adam S3As back to life – still no problems with the new crossovers. I thought a lot about making another version of those crossover boards and get them completely assembled – just as an experiment, because until now I always did all the soldering myself. So here they are, completely assembled and looking good:

The only thing left to be soldered by hand, is the XLR connector. The idea would be to use the XLRs from the existing none functioning crossover boards, or to order new ones. I like to solder them after screwing everything in place, so everything fits nicely and there’s not too much tension on the solderjoints.

I’ll be testing those new PCBs in the next couple of days/weeks and will post some updates here. Could be that I got a couple of spare PCBAs lying around, in case anyone should be interested in helping me out with testing a pair of those – write me an email or comment this post.

As a quick recap, these boards are for fixing a common problem of ADAM S3A speakers. My speakers (the mid-woofers) started to make a weird crackling, scraping, popping noises (scraping cardboard against the membrane, as a visitor described it) and I found the problem to be the input filter / crossover board. I did rework the original boards maybe 2-3 times but the problem always came back after some time, so there was no way around designing and assembling my own PCBs, which solved the problems…