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					Originally Posted by  jmac
					 
				 
				So Andrew, 
 
The brushless Spal fans have the PWM built in to the motor housing, eliminating the need for the C6 controller? 
 
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 That is my understanding. I do not have first hand experience with them, but this thread has all the relevant information. 
Although, if you already have a C6 controller and a good fan, I see no reason to change.
Andrew