Hey all, still in the honeymoon stage with my Clarus, but was wondering if there are any tips, y'all would like to share with your dealings with it. i've been using the Low Z input like the manual says, and fiddling with the EQ, but how should i handle the power amp? like my Stewart and Peavey, should i keep the Master ALL the way up, and control the volume with the input level? the effects loop is Parallel, right? so should i keep that ALL the way up for the most sound from my tube DI? any other tips or tricks you have with the Clarus? and one little niggle i was hoping you guys could clear up for me: after a while, i start to hear a very high pitched whine coming from the speakers. it doesnt really get in the way of the tone, but if i dont play and stand next to it, i can hear it a bit audibly. its kinda annoying in a dog whistle kinda way. its happened with my Epifani setup, and a PA speaker i had lying around. i also tried swapping cables, and it's still there, tho the cable that comes with the Clarus is very clear! should i have it looked at, or is this something y'all sorta deal with?