Isobarik stands

Posted by: monkfish on 09 July 2002

Hi all
I have an active system which was recently housed in a target 5 tier support which is not spiked at the floor, I also have PMS Isobariks on what I beleive are Linn stands made of square section metal tubing also not spiked. I have noticed if the support is touched while music is being played (loudly usually) vibration can be felt through it.

The Isobariks do throw out a lot of bass energy, some of which is being transferred into the carpeted wooden floor and must be finding it's way into the support which is placed next to but slightly behind one of the speakers. Can anyone suggest the best way of fitting spikes to the speaker stands ( my list of possibles are drill and fit with nuts, weld spikes into place),also will the stands have to be spiked top and bottom.
In the case of the target stand I can't think of any way to spike it, B.T.W. it also is square section tubing. I also have two target wall supports which will eventually hold my CD player (CD5) and my LP12, but these will not come into play until some renovation and decorating ahs been undertaken so the 5 tier will end up being host only to amplification and power supplies.

Any ideas on isolation would be very welcome but please take into account I am quite borasik at the moment and would rather modify present equipment than buy anything new.
Thanks
Jim
Posted on: 09 July 2002 by Hermann
Just do a search on the forum. There is so much written on brik stands.
Posted on: 09 July 2002 by Lo Fi Si
Jim
Try Monacor (sp) spikes, these may work for the target stand, they attach using self adhesive pads(optional and probably not ideal acoustically) and can be adjusted to level things up. About 20 squid for a set of 4. Try Affordable Audio.
With the stand that close to the speaker are you sure all the energy is going via the floor as opposed to through the air?

Simon
Posted on: 09 July 2002 by Paul Ranson
Try http://www.hi-fi-accessories-club.mcmail.com/spikes.html for spikes.

If your Isobarik stands are the type with verticals only towards the rear I think you're probably on a hiding to nothing in searching for rigidity. It might be worth looking for a fabricator to stiffen them up, or simply duplicate the more recent Linn setup.

Paul
Posted on: 09 July 2002 by gusi
Jim

My Linn stands are spiked at the top and bottom.

The top spikes have a short spiky part (2-3mm) which disappears entirely in the wood. After that the spikes flatten out. If you use long spikes on top you'd risk splitting the wood of the speaker casing as the weight of the speakers would push them down too far. ie the speakers could impale themselves on the top spikes.

The top and bottom spikes have a screw and nut set up.

Mine are very rigid and very little vibration goes into the stands or floor.

Gus
Posted on: 10 July 2002 by monkfish
Thank you all for taking the time to reply, I am now armed with more ideas and will post again when I decide which course of action to take.
Jim