Putting spikes on my speakers?

[E1mo]

I recently got some TLK KV1s and I've managed to get hold of some heavy duty spikes to put into the bottom. Basically, my question is whether this is a good idea or not?

My thinking is it will isolate them from the surface they are currently sitting on (I don't have any stands)

Thoughts/advice?

 

[E1mo]

The KV1s are bookshelf speakers by the way, currently on a hollow MDF ledge which is carpeted.