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Veiled 'wet blanket' sound from tweeters

Is it my speakers or my amp?

My gear consists of B&W PM1 with Rotel Integrated RA-1570.  

I'm experiencing a lack of detail and separation from the speakers , specifically at the tweeter source.   Switching between headphones (Grado RS1) and speakers, it is like there is a heavy blanket covering the tweeters.  Midrange/bass is fine.

Switching sources between DAC/Turntable yeilds no difference.

I'm actually wondering if the crossovers have been damaged.   

I don't really have the luxury of switching components.  Any ideas on what my next steps should be?




gmckay1960

Showing 1 response by nicemix

nicemix
1 posts
 
Another possibility is bad ferrofluid fluid in the tweeters. I had that problem with my B&W P5 set after about 10 years. The condition you described is very similar to my experience. I had output, but it was extremely limited causing the speakers to sound lifeless. 
I removed my tweeters from the cabinet, then lifted the diaphragm gently off. I used some alcohol to clean out the old fluid that had hardened, then replaced some fresh fluid from Parts Express. That brought them back to life again. 
Good luck!
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