STX subwoofers

Thiele/Small parameters of STX subwoofers (8″, 10″, 12″) and a recommended sealed and ported box for every model, in a free sub box calculator.

6 models

ModelSizeVoice coilsFs, HzQtsVas, ft³Xmax, inRMS, W
W.20.300.2x2.MC8″dual 2 Ω330.410.920.35200
W.20.300.2x4.MC8″dual 4 Ω350.420.880.35200
W.25.400.2x2.MC10″dual 2 Ω330.331.200.30300
W.25.400.2x4.MC10″dual 4 Ω320.331.240.30300
W.30.500.2x2.MC12″dual 2 Ω290.392.680.28300
W.30.500.2x4.MC12″dual 4 Ω290.392.190.28300

Click a column header to sort. “!” means the model’s published specs don’t add up; details are on its page.