Suspended vs. non suspended turntable


Hello all,

I am ready to begin my foray into the world of vinyl (again). Looking at the turntables out there, it seems as if there are two types - those with suspension, and those without. What are the advantages and disadvantages of each?

Keith
amfibius
Ah, I get it. Isolation under components like power supplies. Yeah, that works. At least I get good results with the roller blocks. I'm using Stillpoints under my table as a temporary stop gap. The granite in direct contact with my table doesn't work so well due to the ringing of the stone. But I'm doing so at the expense of a slight loss in attack and some bass punch.
02-18-08: Dan_ed said:
"Mass, yes. Isolation, not so much."

Different correct answers to the same physics question.

My question is, what happens if you deaden structure-born resonance, but what about airborne vibrations? The arm and cartridge, unless islotate, are subject to performance degradation if not protected (isolated).

Dave
Dan_ed I am not thinking of DIY'ing my own turntable, I was thinking of DIY'ing my own turntable TABLE ... i.e, something to put the turntable on! As you can tell from my initial question, I know bugger all about designing turntables. I would rather pay someone who knows what they are doing :)

The learning curve I have in front of me is pretty steep, and i'm at the bottom of the curve :( Have been googling up as much information as I can find.

Piedpiper that was what we suspected when we did the comparison, because my table/arm combo was much cheaper than his. Unfortunately we did not repeat the shootout with a cartridge swap.
That's been in the back of my mind as well. For the moment, forget about vibrations that may be transfered through the stand or table. Short of playing records in a vacuum, I don't see how we get away from airborne vibrations no matter what we chose to put under our tables. But it seems to me that these are much less deleterious than the vibrations and resonances within the cartridge body and tonearm due to the physical vibrations imparted by the gyrations of the stylus. These are the real culprits to me. I've never been able to get a stylus to mistrack because of sound pressure, not that I've really tried beyond just cranking the volume to rock out. Maybe I've missed it, but I don't recall hearing of anyone ever reporting that happening either. Now I think anyone who has spent time in the analog world has experienced LF feedback. But that's not what I'm talking about here and I doubt that is an issue with several hundred pounds of mass involved.