Nighttime Bass Tremor

Admiring my dashing glass reflection earlier didn't solve tonight's urgent lack of a thunderous entrance soundtrack. I scrambled up the side of a tall, matte-black stereo speaker humming silently in the corner. Right on top was a massive, knurled metal volume knob gleaming in the dark. Naturally, a mercenary doesn't do half-measures. I threw both arms around that metallic pillar, dug my heels into the brushed faceplate, and heaved counter-clockwise to see what would blow. A sudden, deep sub-bass vibration thrummed straight through the wooden box, rattling my boots and bouncing my scabbards around like maracas. High fidelity, maximum tactical resonance.