rumble issues - see old thread update

Agree about the Stillpoints, we both heard similar advantages/disadvantages. Like you, I'd rather not have that compliance so close to the TT. I'd ditch them too if our Salamander rack weren't so ringy (it's like your Dakota Mahogany granite, except for the good looking part!).

That's different from the sort of suspension I was referring to though. We both know people with sub-20Hz systems, very high mass tables (200+ lbs.) and concrete floors. Every one who replaced a big, high mass stand with a Minus K reported significant benefits with no loss at the bottom end. We're not talking bouncy, bouncy Linn here.

Agree there's little down low in our system vs. yours. Our speakers roll off below ~42 Hz. They can't reproduce the bottom octave no matter what we do at the source.

FWIW, our missing low end is not by choice and has little do with sonic or musical preferences. It's a function of geography and budget: we lack room for a sub and funds for full range speakers that would fit.

I'd love to try big Coincidents, which claim 20Hz without being much larger than our B&Ws. They're also easier to drive, have great crossovers and drivers (on paper anyway) and they're not ported - no woofer pumping!

That's my segue back to the topic. Sorry to Tom for threadjacking!

I just finished reading up on that device. Oh, yeah. That MinusK is a completely different league. It had better be for that price. Then again, when you look at the price of decent equipment racks it doesn't look as expensive.

Dan,

If you think the Minus K is pricey (and you're correct, it's not given the price of something like an HRS rack, a Grand Prix Monaco or many lesser performing aluminum, polymer and glass monstrosities) take a look at the Halcyonics device. We're talking serious vibration control for electron microscopy and other critical scientific applications. Both devices make a Vibraplane look like a toy.

HI Richard,

Yes, I never liked the idea of air and pumps.

I did have some time this morning to scan the Halcyonics. The only issue I have with it is that it is active, however it is reported to have a faster damping time. Yes, this kind of device does put things in another league.

I also like that workstation table on the MinusK website. Change out the adjustable feet with spikes. A Billy Bags short table would also work great under one of these, so it would seem.

Employing a MinusK would probably allow me to play through the next quake in the good ol' granite state. :-)

hi guys

thanks for the further tutorials
this hs spinned into a very insightful thread

Richard is Richard Gray of the Power Company fame
he is an electronics guru and has set up a wide range of tables, arms and recognizes issues via scope, test records, etc

the Craz rack is fine - minimal suspension pads under denser surface material, titanium in the frame. It's the SRA VR platform above it that was causing the problems - these work miracles on amps, pre's, cd's etc but as we found out - the floating element is transmitting too much to the turntable

we replaced it with 3 cm granite and much lower resonance and speaker pumping. SOme in sync with the music, some not and probably in sync with the record. Sound doesn't seem to have added a shrill mid range

I also have a Billy Bags turntable stand my loricraft sits on - that sounds like some lugging I don't want to try

someone at a NOLA audiophile meeting last night suggested eccentricity in the spindle/bearing - but those Galibrier tables are built like a tank. I thought I heard the sligthest squeak the other night on a quiet passage - once a revolution. Do I need to re-oil it Dan?

low freq pre relates to it passing a lower freq signal - lower than my prior Dodd and Arc LS5.

salks ruler flat to 34 hz f3 under 29 hz f10 23 hz

I'l call Thom Mackris and Kevin at SRA for starters

I'll have to look into the record clamps
and yes I don't use the anvil but have seen records that it hurts on warpage more than helps

as Doug suggests - you get to the point where you are hearing all the eccentricities in musical reproduction

or as Richard said - compliant arm, compliant cartridge, comp pre, comp amp, etc - you are going to hear everything - warts and all

thanks