Slightly off topic, but the Auralex SubDude really eliminates boom from my Velodyne HGS-15 sub, and seems to extend the perceived low end. Knowledgable listeners agree that the sub now integrates seamlessly with the KEF 104/2s, and you could not point to it as a source of sound. The crossover is set at 80 Hz. The SubDude provides acoustic isolation from the floor and raises the sub about 3 inches.
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