TechDas Air Force One
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You are going to have to find a good restaurant for me to take you to when I come up to hear this rig!So I am convinced that the performance of the TechDas can be dramatically improved by disabling the air suspension then using and Active isolation table as opposed to the current passive solution. There is a strong possibility I can do this test for myself in the not too distant future.....
So I am convinced that the performance of the TechDas can be dramatically improved by disabling the air suspension then using and Active isolation table as opposed to the current passive solution. There is a strong possibility I can do this test for myself in the not too distant future.....
Christian, does this mean you are willing to take the isolation platform to Massachusetts to Bob Graham's place and try it under his TechDas? If so, you will only be about an hour from me. You are most welcome to stop by and hear my system and try the platform under my SME. More likely I suspect, though, is that there is a TechDas closer to you.
I'm still building up my intestinal fortitude to put in an order. I need a few more days. If the Table Stable is not a good match for it, I can still use it under my other turntable and or RTR machine. Thanks for the offer to visit.
Christian,
i applaud your pursuit of ultimate performance. and as you know, i'm a fan of the Herzan Stable Table isolation.
OTOH i'm skeptical that the Herzan will 'improve' the Tech Das, which as been voiced for the air legs isolation. it will more likely sound different, not necessarily better. of course; you will never know unless you try it, and typically i'm the one pushing manufacturers to try any possible way to improve their 'already sorted out' systems.
a product like a Tech Das has a holistic all together design.
good luck with your temptation. i hope you try it.
That's a report I would like to hear, since I have thought of getting a Vibraplane for my SME 30. Wouldn't want it to be a long run for a short slide, though, since the SME is pretty well suspended and my floor is concrete slab which theoretically takes care of some of the directional components.
I know of someone using a TechDas w/o the air suspension engaged for his platform solution. Perhaps he will chime in.
Here is an image of my preloaded Vibraplane under my SME 30/12. Note that the motor controller is isolated. The steel ballast plate plus the weight of the turntable is close to the Vibraplane maximum design load of 275 lbs. The increased isolation improved the performance pretty significantly. The TechDas and Rockport also incorporate air isolation suspensions. The active isolation of the Herzan Stable Table would probably improve the SME even further, though at a premium price. My floor is suspended wood, though I do have two lolli columns in the basement directly under the front legs of the rack. There is no detectible bounce to the floor and I can not rock or sway the rack at all as it has 400lbs of steel on the top shelf. I simply can't get any of it to move. I'm sure a concrete floor would be better though.
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So I am convinced that the performance of the TechDas can be dramatically improved by disabling the air suspension then using and Active isolation table as opposed to the current passive solution. There is a strong possibility I can do this test for myself in the not too distant future.....
Mike, Don't be so sure that Rockitman is not correct.
Mark D, the Continuum turntable designer recommends that the integral air suspension is disengaged on the Continuum and replaced with a Minus K platform.
I believe Fremer has now done that with excellent sonic results.
regards
Sweet
My thinking is that the less the suspension needs to work the better. I'm thinking perfect road going in a straight line. Regardless of your suspension you'll have a smooth ride.
My thinking is that the less the suspension needs to work the better. I'm thinking perfect road going in a straight line. Regardless of your suspension you'll have a smooth ride.
I decided to try one of these, perfect size for the standard SME 30: http://cgi.ebay.com/Desktop-Vibrati...ultDomain_0&hash=item3f0c8328d8#ht_500wt_1365
http://www.graniteisolator.com/
It's relatively light at 40 pounds and thin. It looks nice, too, though in my room, baroque tends to be the theme. Probably has a frequency of 5 to 10 rather than 1-4 HZ like the air types, The Mfr. doesn't give specs on the gel inserts, but hopefully the SME 30 feet can take care of the rest. It is lab grade because the citations show a lot of labs using them.
Got one for $350, if it works to a reasonable audible degree, I might consider the air solutions, but I really hate pumps. I notice in the SME 30, the pillars seem designed mostly to isolate the motor and the bottom plate from the top plate, always thought that extra isolation underneath might help, but never got around to it.
"Although the Granite Isolator platform does not isolate from vibration as well as an air table, it is well suited for the 200x to 1000x objective magnification range. Higher magnifications should continue to use air tables.
Note however that air tables can also be used with the Granite Isolator platform for better vibration control than obtained with air isolators alone."
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As Miles stated the shoot has been down by M.F.
about the use of platforms for the use of turntables-if one has a dedicated stand and a concrete floor, one has really nothing to worry about just enjoy.. but if one does not have concrete floor-well then one has to experiment and that my friends is a lot of work.. and in the end, mostly everyone will have a different cup of tea..
steve williams
Site Founder, Site Owner, Administrator
Paskinn and friends did compare a 2000 Rockport, Continuum, TechDas and SME 30/12 all in the same system. Comments are in another WBF TechDas thread.
steve williams
Site Founder, Site Owner, Administrator
I did see that when it was posted. I would like to hear comments on the NVS vs the TechDas inasmuch as JT says "bring it on"
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