21inch passive speaker box,
TX21B is Economic carpet cabinet of 25mm high-density piywood covered with coated in high-strong,
Single 21" subwoofer:aluminum basket,
5"high-temp black oxidizing aluminum foil voice coil,cloth edge and non-pressed paper+glass fiber cone
21" symmetrical motor woofer for extended low-frequency outputLarge port area for reduced distortion35mm pole socket for solid,secure satellite speaker mounting,
Voitage:110-230V,
AC:60-50Hz,
Rmspower:1200watts,
Impedance:8ohms,
Sensitivity:103dB/m/w