My new 8" woofer is for free air applications and is servo controlled. 
Hi Danny and all Audio Circle members.
Since the GR Research SA-1 ss plate amplifier is not for servo drivers and you told us that you will not have a GR Research ss plate servo amplifier, does that mean the only other choice to drive this new 8" sub woofer would be the Rythmik A370PEQ?
Guy 13