Hi all, this is my last bastion of hope before I call Les at Kern. I recently picked up a used Kern, but I can't seem to get useable volume out of it without damn near diming the preamp gain and output volume. With all other settings/cables/etc on my basses and PLX 2402 power amp being equal, my Read Purity only requires the preamp and master volumes to be at about 9:00-10:00. I've tried both the Main Out (has unbalanced 1/4" output) and Line Out (XLR out), and neither seems to give me anything more than the other. I've also tried swapping tubes, but replacing any one of the two 12AX7's or single 12AU7 did nothing for me. I figure if something's wrong with the Kern, I'll have to send it back to Les. But the user before me reported no problems running it into his PLX 3002 from the 1/4" out, and so I was thinking that if there's a flaw with my setup, you guys could find it, or at least give me suggestions of things to try before I trust my preamp to UPS or Fedex. Random thought: I know that some preamps don't work well with the QSC PLX's because of their relatively low sensitivity, and there are some people who have had their PLX's modded to accomodate lower input voltages. Those of you who have used Kerns into PLX's, is this for me? Have any of you Kern veterans noticed low output signal coming from them?