View Single Post
  #19 (permalink)  
Old September 29th 06, 01:53 AM posted to uk.rec.audio
Keith G
external usenet poster
 
Posts: 7,388
Default How hard should my balls be?


"Wally" wrote in message
...
Keith G wrote:

The deck flumped directly onto the stand is an option I hadn't
thought of and which will be tried. It's no big deal, it's just me
trying out ideas, although there's not much doubt that taking the
'springing' off has improved it and tightened it up noticeably!!


I'm a great believer in mass. Lightweight stuff can work if it's done
right,
but it's easier to get a result with over-engineering - heavy **** is
always
harder to move. You could bolt the deck down onto a heavy slab of
something
(black granite?) with some sort of damping between that and the concrete
slab.



Yes and no...

I don't think mass per se is the whole answer. There is the unscientific
term 'musicality' to take into consideration and I'm pretty certain
overdamping and too much 'mass coupling' can do as much damage in this area
as too little....


My little Kef Q Compacts (200 quid, 10" high bookshelf jobbies) weigh 4kg
each, but, with the sand filled stands, they're about 20kg. When I tried
them full range with one amp, I was surprised at how much depth there was
in
the bass, and at how solid it was. (I cut the low end at 200Hz in the
tri-amped set up.)



.....when I loaded my Paladins with lead shot it killed them! I reduced it by
degrees until I ended up taking it all out again! Also, there are (were?) a
number of speakers that fly in the face of convention ('knuckle test' for
cabinet resonance) like the thinwall Rogers Studio Monitors I had, which
were very good speakers in their own way.

FWIW, I am also beginning to think plywood really does make a better 'horn'
speaker than MDF, but I'm a long way off a conclusion yet....!!