That did the trick!
I placed Herbie's small Fat Dots under the speakers (Spendor S3/5), Herbie's self-adhesive grungebusters on the Skylan speaker stands' .5" flat metal feet, and Herbie's self-adhesive grungebuster Extra-Thick Minidots under the audio rack's spikes' floor disks. (I used the self-adhesive grungebusters on the feet because I need to move the speakers when I am not listening to them to prevent my young children from knocking them over.)
The Fat Dots substantially reduced the vibration in the stands. I assume that the grungebusters on the speaker stands' feet also reduced vibration in the floor.
The low end is even tighter than when I loaded the stands with sand, and the mid-range and high end are back.
Excellent! Thank you, thank you, thank you!
I placed Herbie's small Fat Dots under the speakers (Spendor S3/5), Herbie's self-adhesive grungebusters on the Skylan speaker stands' .5" flat metal feet, and Herbie's self-adhesive grungebuster Extra-Thick Minidots under the audio rack's spikes' floor disks. (I used the self-adhesive grungebusters on the feet because I need to move the speakers when I am not listening to them to prevent my young children from knocking them over.)
The Fat Dots substantially reduced the vibration in the stands. I assume that the grungebusters on the speaker stands' feet also reduced vibration in the floor.
The low end is even tighter than when I loaded the stands with sand, and the mid-range and high end are back.
Excellent! Thank you, thank you, thank you!