It's very common to see the redline speaker cloth all grey'ish, worn and even perforated and they deserve much better. The covers are not easily dismounted in that they form the whole front half of the cabinet, holding all drivers etc. from the inside. I have recloth'ed quite a few of the Beovox redline speakers and also worked out a way

My bet is that the some (or maybe all) of the three little pins protruding at the backside of the slider has broken off. The string is zig-zag'ed between them and it's very common to see one or more broken pins. (Photo shows a slider with two pins still intact). One pin is enough if you glue the string to it. Of course, you should make sure

Welcome to Beoworld ! Which version do you have, the DC motor or AC motor version ? If the AC motor version, replace the large caps near the motor as the first thing then check and adjust the AC pulse phase as per the service manual, these motors hardly ever fail. If the DC motor version, adjust (or eventually replace) the speed setting trimmers on

Probably the motor but it's very hard to diagnose without having it here to see, listen and feel. Martin

Thanks guys, I don't have the handles. I suppose it's of no use without them. Martin

I have this bracket, maybe someone knows what it's for ? Martin

Wonderful reading, thanks for taking the time to do this. Martin

Solder out the pot and take it apart. Be careful, especially with the bronze parts and their tiny coal tips (avoid touching the tips or they will most likely fall out and become lost). Clean the black plastic "sliding bridge" using isopropanol (tapehead cleaner) and glue the bronze slider back into place using superglue. Give it an extra tiny

When I ask B&O for spareparts, at least the ones I normally need, I usually receive an NLA (No Longer Available). Martin

The lamps are of the push-fit socket type. If the wires are still good you won't need any soldering. Martin