I have Istick 50 and Atlantis. You do get a xtra glass with it too. the Atlantis and Kanger sub does about the same. One plus on the kanger though you can rebuild the OCC easily, I rebuild my wifes all the time. She likes hers around 1.2. Now rebuilding the Atlantis coils is a pain. You need welded hybrid wire (outside ends are non resistant while the center part is resistant) to build or you will burn the rubber grommet.