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When I read the comments about weight on OB would change the sound of the Prometheus, I said to myself "yeah, but how much it could be?" After all, Prometheus was the best speaker I had listened to. I adore MK1 and not only me, but all of my colleagues who lay their ears on them start to melt in the first 15 minute. So I neglected to implement it. Until this week...Well couple days ago I went to this diving equipment shop and bought myself a pair of 2kg. each lead weights divers use. Drilled 2 holes on each. And finally last night I screw them on the back side of the OB right above the wideband driver next to tweeter. Took me no more than 45 minutes all together.
Boy, you couldn't believe the difference. So I join brashgordon who responded beerme on 03-08-2006 on the thread "first impressions". This is something else. The mids are much milkier, smoother, stage is larger. Plus I had to turn down the sub level and lower the xover frequency. Hard to explain. You must try it. Cost me 15 bucks for the weights and the rest is nothing.
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look like?
I've got Lady Day+ with TJ Gold Mesh, highly modded (except the Tentlabs filament heaters) and Django silver TVC. As source I use Arcam CD72 CD player
Are you doing this to minimize vibration of the the baffle?
I have been thinking about this for some while and even though I have 50 lb. weights at the bottom of the base I might try something to further stabilize the top portion of the baffle.So the first thing that came to mind was a long threaded rod inserted at the top of the baffle running angled to a weight that would be resting behind the speaker somewhere.
Yes I did it to minimize the ob top move. I have the subs sitting on the ob base and they are pretty heavy. But even though the baffle seems to vibrate which to a degree resets the cone movement. I have the feeling that even if you have the support running in angle, it is still better to increase the mass of the ob instead.
Both are easy enough experiments which further makes this speaker not only great to listen to but great to experiment with.
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