I didn't

But I have been holding the volume down on the music and I don't turn on the sub on the PC much anymore. This really sucks. The walls are plaster and lath, but the ceiling and floors are paper. You can't hear your neighbors, but a good jump feels like you would end up in the apartment downstairs. That apartment that I had in Walnut Creek was concrete construction. No sound at all came through the walls or the floors. In the model home that we looked at last weekend, I jumped up and down as hard as I could. In all the rooms on all the floors. Feels very solid. 12" on center joists and 16" on center studs in the walls. Also interlocking sub-floors.