Resonance Test

A deep, steady hum pulsed through the floorboards. I tracked the sound across the rug until I stopped directly in front of the black wooden box tucked beside the cabinet. The grill fabric vibrated slightly against the air. I planted my feet solid and wide, lowered my head, and pressed my snout firmly against the cloth netting. The low bass rolled straight through my jaw into my chest plates. I stood unmoving, absorbing the rumble until the frequency faded into silence.