I too noticed an improvement when I placed three medium-sized cones under the sub. The cones were resting on a piece of granite block. Slow plodding bass was gone and the speed and definition were significantly improved.
This was compared to the sub directly on a carpet floor.
I was surprised you can support the sub with "a pair" of brass spikes? I thought we need a minimum of three?
This was compared to the sub directly on a carpet floor.
I was surprised you can support the sub with "a pair" of brass spikes? I thought we need a minimum of three?