@hilde45...
Spikes were OK but the big improvement happened by placing cheap granite kitchen chopping boards under the speakers and then Isoacoustic Gaia feet under the speakers, resting on the granite. This made a massive improvement to bass and the overall sound image.
@duckworp, for the feet under the speakers, what worked for you? I have some spikes but have not tried them out, yet. Came with the speaker stands.
Spikes were OK but the big improvement happened by placing cheap granite kitchen chopping boards under the speakers and then Isoacoustic Gaia feet under the speakers, resting on the granite. This made a massive improvement to bass and the overall sound image.