Thanks, Gonk! I set this jewel up tonight and all I can say is wow! I got a curve that is plus/minus 3.5 dB at 76dB from 30 H to 100H with a cross over at 80H. SMS volume is 15 with UFW-10 volume at 1/4 gain. Still have some wish list tweaks but for a 1.5 hour effort this is amazing.