You mentioned pucks, but believe you mean the Gaia footers and possibly carpets spikes. Isoacoustics does both.
I run the Gaia II with ATC 40 active and the difference from the stock provided spikes is enormous. They provide all of what one looks for such as better resolution, more controlled bass, blacker background and lower noise floor. The carpet spikes better the performance even more. They are real.
I run the Gaia II with ATC 40 active and the difference from the stock provided spikes is enormous. They provide all of what one looks for such as better resolution, more controlled bass, blacker background and lower noise floor. The carpet spikes better the performance even more. They are real.