MTX Jackhammer 22″ Subwoofer T9922-2 T9922-4
MTX Jackhammer car subwoofer reviews. The MTX Jackhammer is my favorite car audio subwoofer of all time, even though i have never had it in my own car. This is an enormous dual voice coil subwoofer and it come with enormous bass. The 22″ MTX Jackhammer come in two different models, T9922 – 44 is 4Ω and T9922 – 22 is 2Ω, but other than that they are the same. This is the perfect sub for some one who is looking to put some seriously loud bass in there ride and you will have that great MTX audio look to go with the sound.