An isolation platform for the SB3

[zanash]

As the sb3 sits on the rear foot and two little feet under the main body ...its actually quite a light weight setup. Mine has been draged back wards with heavy cables. The plastic construction will not help damp micro vibration getting to the dac and other micro phonic components.

So I decided to try and make a base that would address these issues.

I had everything I needed in my research and development complex [shed] ....

1 x granite placemat tesco's finest
1 x 5mm rubber sheet
1 x 18mm mdf sheet
2 x metal strip drilled
2 self tapping screws
1 x no nails glue
3 x 25mm dia felt feet

using the granite as a template I cut the rubber and mdf to size.
I then glued the rubber sheet to the granite, whilst setting I then marked out on the mdf the position I wanted the sb3 to sit, in my case about 30mm back from the short side. I then bent the metal strips to form loops to go over the round metal rubber rear support. Drill out and screwed the strips on ...I had to dremel off 1mm of protruding screw....so check there length before you fit them.
The mdf sheet was then glued to the top of the rubber and clamped ...with the sb3 attached in my case. then fit the three felt feet to the underside of the granite.

When the glue had set I fitted the sb3 back into my system ...
What I noticed was a greater resolution and better dynamics ...don't get me wrong its not huge. But the total cost was less than £8 and I've now got a very stable unit thats not pulled across the self with heavy cables.

[killie99]

any chance of a photo?

[zanash]

if I can work out the correct image size ....

[singleended40]

I am using three pieces of Ebony wood (knife handle size- two in front and one in the back) between my SB3 and another two inches thick hard red wood.

[zanash]

I'm planning to sit the whole on top of a set of iso feet ..by davidf on zerogain.com

these are wooden discs with a ball bearing ...the effect on my cd were stunning considering the very small cost of these units [£15 for 3 feet depending on size]

fitting these under my quad 99cdp2 for the first time was a real shock as I then discovered how much music was being lost.

[Deaf Cat]

photo photo

[ezkcdude]

I'm planning to sit the whole on top of a set of iso feet ..by davidf on zerogain.com

these are wooden discs with a ball bearing ...the effect on my cd were stunning considering the very small cost of these units [£15 for 3 feet depending on size]

fitting these under my quad 99cdp2 for the first time was a real shock as I then discovered how much music was being lost.

Zanash, if you want the ultimate vibration isolation platform, try a floating or hanging suspension platform. Simply get a large heavy steel or aluminum plate (as heavy as you can find), attach clamps to all four corners, and hang the platform from a frame using elastic bungee cords. You may need to use 3-4 bungees per clamp. In grad school, I made such a platform using a 200 lb steel plate, with 3 bungee cords on each edge. My lab had serious vibration problems due to HVAC system in the ceiling. Anyway, the hanging platform virtually eliminates all vibration above 1-2 Hz. There still may be some lateral movement, but the high-frequency vibration is gone. Much better than any "isolation feet". Try it, if nothing else, your friends will be impressed. If you want, I can dig up a picture for you of what I'm talking about.

[Deaf Cat]

photo :] photo :]

[ezkcdude]

Ask and ye shall receive:



Note that the tennis balls underneath the platform are not in contact - they are just a safety measure in case the worst should happen (i.e. the bungees break!).

[Deaf Cat]

Cheers!

Did you have a chance to try a cdp or amp on it ..... ?