Ground Zero GZTB 120F 1,994.48 NOK 1,994.48 NOK Available BUY Article Number: GZTB 120F Share Information Reviews - 12″ subwoofer in a sealed enclosure - very shallow depth! - measurements W x H x D: 72.5 x 38.5 x 11.0 / 19.5 cm - power handling 350 W RMS - enclosure net volume 29.5 liters.