Hello everyone. If anyone is interested in the topic of spikes for Forte. There is an interesting product by Dayton Audio
http://www.daytonaudio.com/index.php/loudspeaker-components/speaker-cabinet-accessories/speaker-spikes/dss5-bc-black-chrome-spike-set-4-pcs.html
DaytonAudio DSS5-BC. These spines come perfectly in size to ForteSome photos are attached
Regards, Artur