I normally run my Alembic F-1X using the XLR out (post EQ) into a Rane line level crossover and EQ, then into the power amp. Everything is balanced XLR and hum free. I have to crank all the Rane gear up wide open, and the F-1X at 7 to get any real volume out of the rig. Granted my subs are inefficient, but... Running the F-1X volume above 7 causes preamp tube farting something awful. Last night, I built and tested an unbalanced 1/4" to XLR cable and drove the Rane signal chain using the F-1X Full Range 1/4" line out jack. I was able to get stage volume on the F-1X at 3 ~ 4 on the volume control and without farting. Q: Has anybody noticed if their XLR Out is markedly quieter than using the standard 1/4" jack for Line Out?