I have a Tumult driver for sale. $320.00 including freight. I also have a Crown xls 402a amplifier. I have cut the wires for the fan. It has operated very well, and as long as it is out in the open, the fan is not necessary. The wires could be soldered back together if the fan was needed. $220.00 including freight. Please email me @ [email protected] with any questions.