Any B&W 802 D3 users ?

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I bought my 802 D3 & Le 400 in April 2016 and upon running them approx. 1000 hrs, I setup them up in my 5.8 metres wide X 9.15 metres long room. Details of the setup with pictures are here 
http://devialetchat.com/showthread.php?tid=3095

As you'll notice that there's ample room for the loudspeakers to breathe, I was wondering what and how I should address the issue to undue heaviness around 50Hz to 150Hz in spite SAM doing its job for the B&W 802 D3. 

Weeks passed and I got busy changing the Digital Link between the Master & Companion from stock to RCA-AES/EBU that brought about a good measure of focus. 

My next upgrade was addressing vibrations of the Devialets. I went about the path of applying 'magnetic levitation' footers (custom built @ 50% depression for Le 200 weight) under each Devialet that would allow the units to decouple and float in air. 

My jaw dropped once I had the footers setup under each Devialet and gone is the undue heaviness that kinda held things ... 

The 802 D3s are now sprinting up on their feet and sure .. when deep bass comes thru, you hear it perfectly but otherwise, the PRAT is just soooo perfect now !!

This is one helluva achievement towards nirvana IMHO ... 

Hence .. I decided to talk about it ... 

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P.S.  :  Whilst the bottom part cleaned up, the mids became much more glorious and the HF opened up even more with a greater sense of air ...