Ok, last night at a gig I couldn't get ANY volume out of my rig. Eden Navigator into a QSC PLX1602 (ran bridged, filters on, limiters on) pushing an acme B2 @ 8 ohms. Everything was working fine three days ago. I was able to play the gig last night running straight into the board, so it wasn't the bass. The power amp signal indicator would barely light up (power indicators and bridge/parallel indicators were fine). I would get a barely audible sound from the speaker. I usually get a signal right under clipping with the amp at around 2 o'clock, and it's quite loud. I barely got a signal pushing it all the way. The navigator appeared to be working fine. But I ran my signal through a direct box (sound guy's suggestion), and we were running so behind on a sound check that I didn't have a chance to see if the navigator was sending a good signal out. I checked and swapped out my cables from the pre to the power amp, and from the power amp to the speaker. No change. I also ran the signal mono and tried both channels of the power amp, but had the same results. It almost sounds like the input regulator inside the preamp needs to be changed, but it was working three days ago and has been sitting in its rack untouched. Also, having read previous posts, it seems the nav would be putting too much out if I changed the input selector. I'll still try that when I get home. Anyone have any thoughts? Bob Lee? I hate the thought of owning a $500 paper weight.