stands for quad 11

What is the correct height for my speaker stands, for use with Quad 11L's? I currently have 24" target stands, but I feel they might be to low. Any help would be appreciated.
try the premier s- 26[go to website], inch on spikes and sand filled also bend at your knees and go up slowly and down and see if you can here a difference ,,also kimber 8tc cable sounds nice with your speakers for cable,
thanx for the response, I will look it up.