Clark Synthesis TST239 Silver Tactile Transducer Bass Shaker - brand new - all mounting hardware.
Specs:
Continuous power handling: 100 watts
Impedance: 4 ohms
Overload Protection: Polyswitch
Frequency Response: 15Hz to 17kHz
Electrical Connection: 3ft. – 16/2 wire
Dimensions: 8 in. diam. x 2.25 in. high
Recommended Amplification: 100 – 125 watts at 4 ohms
i have 2 of theses - they are 299.00ea. on partsexpress.com - i am selling both for 300.00