Ingress Audio Engineering


I recently discovered the benefits of isolation. Don't know how many of you are familiar with Barry Diament's  recommendations for his hip joints. The recommendation for the economical DIY set up worked well for my stereo; (lightly inflated bike innertubes, wooden egg holders supporting stainless steel balls).

http://www.barrydiamentaudio.com/vibration.htm

A month ago I bought Isoacoustic Oreo's. 3 per component (weight appropriate) and was very impressed...at first. After several days of settling my music sounded dull and lifeless. I reread the optimal weight recommendations, re-calibrated weight limits with temporary improvements. To my disappointment I realized the Oreo's could only be compressed (especially after the suction seal was formed between them and the component or platform the component sat on). Sure they rocked in all directions, but they didn't glide in all directions. Only horizontal isolation was taking place so I coupled the Oreo's with Barry's economic hip joints which has greatly improved the SQ. I'm loving it but I still feel there's room for improvement. Mainly because I own the Hfiman HE-6SE HP's and I run them through my power amp's speaker taps. So I want Barry's upgraded hip joints under my amp. I'm interested in Ingress Audio's vibration isolation rollerblocks.

http://www.ingress-engineering.ca/products-and-services.php
I've looked up info about their level 2's and 3's but specifics on their differences aren't given. I know Barry says the blocks should be machined smooth to a certain degree. I left a message with Ingress, but I'm impatient and wondering if perhaps the level 2's aren't as smooth as the 3's. The smoother, the greater the improvements. My question is does anyone know the differences between their Level 2 and Level 3 rollerblocks?
mewsickbuff
So Bluestone is a type of limestone, so granular in nature. Slate on the other hand has fissibility, which means it’s layered, that might mean its good at damping vibrations? In tests it seems that way. Geoff thanks for info.

bdp24
5,265 posts
05-21-2019 2:07amDamn, 3" thick?! What's one weigh?

>>>>A lot.
Slate actually appears to have much in common with bluestone. To whit,

Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. It is the finest grained foliated metamorphic rock. Wikipedia
I tried a slab of marble back in the 80's; it rang too much for my liking. Perhaps with a sheet of constrained layer damping between it and another slab of something with different resonance characteristics would be good.
When granite or bluestone or whatever is placed on springs it’s isolated right along with the component. Also, when the slabs are two or three inches thick they will not ring unless you strike them with a hammer. Even then they go thunk!  Also, don’t strike them with a hammer whilst music is playing. The great advantages of such materials is their stiffness and mass.