Yes using the first speaker in from the Helix, i have both my 3lts working now eliminating or bypassing the sub, i just thought you could run the sub too and its auto crossovers would take care of the rest. Also i am using the correct cables. didn't matter where or what sequence i put my sub there is no sound. Btw all speakers worked including the sub by connecting via xlr left and right outs. Happy that i get sound from both my 3Lts.
Thanks for the help...