What do you want to achieve? Are you mainly wanting to protect the floor, or are you hoping to change some aspect of the sound?
I used Naim Chips under my Kudos X2s for some time which did a decent job.
On a concrete floor I’m not sure you need to dabble in expensive after market isolation devices, but of course you are free to experiment.
I want to protect the floor with the best sound sounding Audio Track spike shoe or other solution for my situation. My budget is around 400 euro, but do not want to waste money.
Any floor protector will protect you floor, and many spike shoes do not pretend to do anything more than that. A cheap pair off ebay would be all you need.
Adding one of the many aftermarket isolation devices without a clear idea of what problem you are attempting to solve is jumping down a rabbit hole. Chances are you will change the sound, often improving some areas while having a negative effect on other aspects. It’s easy to be pressed by first impression, only to find that if you remove the isolators after a period of time you prefer what you then hear.
I have a solid oak on concrete floor and use Naim Audio Fraim Chip floor protectors under my Kudos Titan 808s. These can now be purchased for just £8.68 each, although there are some retailers still trying to sell them at more than double that.
Yesterday I moved the S20a’s from cardboard without spikes to a piece of carpet with spikes.
The speaker are now rigid and stable, the sound improved. Now much ‘tighter’ in all aspects.
I thinking about to order the Track Audio Spike Shoes without delrin.
Yeah - as always with stuff like this a home demo is vital. I was lucky to get these on sale or return so I tested them for a couple of weeks and decided they weren’t going back.
Good luck in your deliberations. I guess we all get to the point where there’s nothing left to wring out after all the tweaking, fiddling and fettling eh?
I have Kudos too but I’m not buying or believing a profile match.
The idea of a spike is minimal contact not shoulders and more.
I would imagine the smaller the better to keep the small as possible contact area.
I suppose they sell.