throw it in the dumpster. ruined the bass on my turntable.
mats are best used to damp the audible tonearm resonance that can color the midrange.
the way to test this is to play bass beat music with vocals at higher volume to make the differences more obvious.
compare bass impact, bass note definition and vocal midrange clarity.
the achromat on my technics seemed to blur and cancel bass notes, reduce their sharpness and impact and fog the midrange.
try another, there are clear winners out there for the latest technics tables.