I can do the work, if you think that you can pull them and ship,hit me on private message
Ferrofluid
Hey guys. So I have been texting someone from Germany I met online as he also has a pair of B&W 800 Matrix speakers. He mentioned that he treats his tweeters every so many years with Ferro fluid. It was kinda hard to actually text about it online with someone I just met from another county. I did google it and looked on utube for some videos and there are some. It’s seems it should be done about every 10 years or so. And u actually have to take the tweeter out of the cabinet disassemble / remove the voice coil clean out the old Ferro fluid and add new Ferro fluid. It’s seems to be some kind of a magnetic liquid used in speakers especially tweeters for better clearer sound, highs, voices etc. It really looks like a job for the experienced in rebuilding speakers. Has anyone heard of this or had it done ? I’d really love to know from folks who had experience with this. My speakers are from the 90s and even though they still sound phenomenal I’d really like to know more about this. I do plan on keeping my speakers for the long term. Thanks to all in advance.
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No need for a tech, just order a capacitance meter off Amazon $20, put either lead on either side of each cap and see if the number on the meter is with 10% of the number on the cap. It’s really that simple and you can do both crossovers in 15 min, no chance of damaging anything . In the time it takes to call someone up and explain what you want you can have one done. But hey, it’s your call. |
@katman You might want to look up his speakers, there are 14 caps in each speaker, not to mention relays, half wave rectifiers and Zeners. The crossover is on multiple circuit boards to handle independent functions, they are not surface soldered and tacked down. I'm not saying that this is a nightmare to do, but you better know what you are tackling. So, all you need is a $20 meter? I have 3 LCR's (meters) and a computer that measures capacitance. I'm lucky to have some reference parts that I have exact measurements for. I don't disagree that on many crossovers, its a fairly simple chore to change caps, but his speakers are complicated and would not want to see them messed up. Cheap meters can be off quite a bit in their tolerance. Just don't believe that in this case that you gave the best advice. |
There’s nothing inaccurate about a cheap meter, they are all good. I see no relays in that crossover ( or any other crossover ) and diodes generally don’t go bad. a meter would confirm to op that all caps are good and I bet they are as they used quality components. I wouldn’t change a thing about the crossovers and I think that is good advice. Personally, I would not spend a nickel on those crossovers , I’d triamp them but then I have an active crossover sitting in a drawer and the amps to run it, I would not recommend this route to OP. |
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