2. digital
  3. 144115-118117

If you want to get the best of your transport, try this.


http://www.symposiumusa.com/rollerblocks.html 

I had used these three roller blocks under CEC TL0x for 5 years about 15 years ago and now I am using them under Jay's Audio CDT2 Mk2.

There are two different balls. If you can afford, the super ball is recommended for more effect.

With these roller blocks, transport give higher resolution and sharper focus.

I think it's effect is more than good digital cables.

But I recommend combination of roller blocks and good digital cable to get the best of your transport.
128x128shkong78
bdp24's avatar
bdp24
9,865 posts
 

Symposium’s second Roller Block, named "Jr,", contains a top and bottom cup, circle-shaped with a diameter of just under 2". Symposium’s original Roller Block (still available) came as a single cup, rectangular in shape.

Ingress Engineering now makes three versions of their roller bearing (the company’s website pictures all models), the best two an improvement on the Symposium design (imo). The bowl is cut to a larger diameter, therefore being shallower will less steep walls, for a lower resonant frequency (I believe). The aluminum used is also the harder 7075, rather than the 6061 Symposium uses (as does Ingress in their original, bottom model). Their original model is still available, and like the Symposium Jr., consists of two cups.

Geoff is of course absolutely correct; roller bearings provide no low-frequency isolation in the vertical plane. Neither do spikes! Lots of people consider spikes and cones to be isolators, when they are in fact couplers (at very low---below 10Hz or so---frequencies). Don’t blame the messenger ;-) .

I have one set of the Townshend Audio Seismic Pods (under my Townshend Rock Elite table. Max Townshend, a very clever and creative designer and engineer, used the Pods as the suspension in the Mk.7 version of The Rock), and will be getting more; gotta sell one of my vintage drumsets : ( .

uberwaltz's avatar
uberwaltz
13,381 posts
 
There is a huge difference in price between Townsend and Herbies for sure and if the Herbies were a close call to the Townsend I may try out a couple of sets of the Herbies Tenderfoot at about $60 for set of 4 opposed to $600 for set of four Seismic pods.

I can see the pods have way more to them and can actually be used as leveling devices as well but still a huge chunk of change difference.

Any body else used the Herbies Tenderfeet?
marqmike
841 posts
 
This is where I am with my system, just doing a little fine tuning. It sounds terrific right now and if I did not get any vibration or isolation thingees I would live happily ever after. But I think it would be good to give it a go. I appreciate the personal experience from select hifi. Uberwaltz I would like to hear experiences from others that would like to share with us here. Those that have used them, and under what circumstances did they worked better and not so good. Thanks
mac48025's avatar
mac48025
672 posts
 
In my experience the Herbies tenderfeet provided sonic improvement but not nearly to the degree that the Symposium roller blocks or the Isoacoustic Orea isolators that I am now using. I’ve actually gone to using them both in conjunction with the Mapleshade 4” thick platforms and isoblocks since I already had them and I like their looks.....yeah, aesthetics while not the end all, do matter to me. 

The roller blocks are open topped and I have no issues with components sliding off......and yes, I bump into them all the time while tinkering. 

Geoff has me thinking that I should replace my isoblocks with springs to vertically isolate my maple platforms while the roller blocks or Isoacoustic footers provide horizontal isolation to the components. Maybe separating them like that isn’t recommended?

 Component>Symposium roller block or Isoacoustic Orea>Mapleshade platform>Spring>Rack>spikes>floor. How does that look isolation experts?
geoffkait's avatar
geoffkait
23,365 posts
 
mac48025

Geoff has me thinking that I should replace my isoblocks with springs to vertically isolate my maple platforms while the roller blocks or Isoacoustic footers provide horizontal isolation to the components. Maybe separating them like that isn’t recommended?

>>>>You usualy have to separate them. That’ll work. 
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