Are these speakers worth refurbing?

[nat8808]

Unfortunately Nat I have absolutely no experience in DIY electronics, I am sure if I had your knowledge I would have done things differently.

Ah... I have next to no experience in DIY electronics. Most I've ever done is replace things like capacitors which is simply a case of sticking legs through holes and soldering.

It's the soldering that may require practice but the rest is just thinking about it with a calm mind, knowing there are no rules and knowing that you can always back track or hand it to someone else if something goes wrong.

It's quite practical and all common sense and those only come out to the full if you're not afraid or worried. As I say the only skill really is the soldering part and you have to do that whichever caps you use.

[Kaiman]

It seems to me that the blue and the two black cables share a track (the big crescent that starts at the top and swoops down the left hand side, under the 8 mF/50V cap) therefore they must be the negative leads sharing the earth/negative, but I'm not sure.
Mothman, do you happen to remember where the three pairs of twisted cabling lead to? One should be coming from the external terminals and the other two should be going to the woofer and tweeter, but which is which is which?

[Mothman]

Kai

Here is a photo of the rear of the board before I started work on it. Hopefully with the other photo you can work out the connections. If not then I can look at the other untouched crossover, but it may take me a while before I can do this.

[Reid Malenfant]

Input to the crossover is the red & black wires in the centre. Bass output is the other red & black wires, output to the tweeter are the green & blue wires

Each part of the network is 18Db/octave...

[Mothman]

You are correct Mark. Sorry I was being a bit dense and thought Kai wanted to know which wire was soldered on to which bit of track and not what each pair of wires was for Must read posts more carefully in future

[Kaiman]

Input to the crossover is the red & black wires in the centre. Bass output is the other red & black wires, output to the tweeter are the green & blue wires

That's exactly what I was asking about, thanks everyone.

[Mothman]

Eventualy got around to getting the refurb of my Audiomasters finished. Crossovers have been re-capped, internal wiring upgraded, cabinets rubbed down followed by 3 coats of Danish oil and then polished with beeswax. Grilles have also been recovered, though I would probably make a better job of these if I had to do them again. I'm pretty happy with the overall result though I'm still adjusting to the new sound.

[Macca]

Beautiful job that is, Rich. Do they sound as good as they look then?

[Mothman]

Martin. the re-cap has transformed the sound, there is far more detail & definition than I ever remember them having before, though if I am super critical I am finding the occasional touch of harshness, however this may just be the speakers now revealing what is happening further up the chain. They are being driven by an A&R A60 which I had re-capped not long ago and I also have rececently changed source in that I'm now using a Squeezebox Touch, so lots of changes to get used to.

[Macca]

Yes like me that is, change a load off stuff at once and then forget where you came in Probably it will all need time to settle down a little.