Ferrofluid

No, won’t start another thread. My thought was , if you have a quality, well designed speaker , going to active bi/tri amping is more likely to improve things that 

than trying to “improve “ the crossover which isn’t likely to improve anything . Most likely, in this situation , best thing to do is nothing .

One way to make those speakers sound better is to temporarily hook up an old avr with room correction , turn off all tone controls and try to get freq response flat ( +\- ) by changing speaker location, angle and adding /removing room conditions .

Then, get rid of that avr.

tattooedtrackman

Thanks for a great post-question here

I also have the Matrix 800s speakers and love the sound. I looked into replacing the ferrofluid some time ago. Contacted B@W North America they would not do the work here in the states. They wanted me to ship them back to England i passed.I remembering that they told me that there is only one type of ferrofluid to use in the Matrix 800 speakers and any other would cause damage to the tweeter. What the specific brand or type is i do not remember.  tattooedtrackman Please keep us posted with your journey.

timlub thanks for all your great info. Where are you located? 

I'm  in the St. Louis area

@68pete I definitely will keep all updated. Looking forward to hearing some really nice improvements in about a month. 

Please Keep us updated on your finding.

Another Matrix 800 owner here