Info for Tannoy Saturn DC 8 Ti


Hi there looking to find some specs on these speakers as there is very little on them!

I bought a pair solely after listening to them, but would be nice to know more about them. They have four tapped holes in the base but they didn't come with spikes or a plinth with spikes, I would really like to get them up on spikes instead of just being on the floor. What size are the tapped holes in the base?

What is the sensitivity of these, recommended amplifier for them? 
If anyone can help with something that would be really helpful.