The Monitor XT12 delivers deep powerful bass down to 24 Hz using a large 12″ Dynamic Balance driver paired with a clean and responsive 100 W Class A/B amplifier. Its ported rigid MDF cabinet and removable grille ensure tight distortion free low frequency impact. With adjustable volume crossover and phase controls plus multiple input options—including line level LFE and speaker binding posts—it adapts smoothly to any home theater or audio setup. And built to match Polk’s other XT series speakers it blends seamlessly for enhanced bass or can shine solo.