I've been pretty st0ked on this amp I purchased for my small practice studio. But occasionally, even with all the great sounds Line 6 Spider V technology has, I am trying to get just a "clean" signal to the driver. I have a set of the standard outboards pedals for sculpting my sound. But none of the 128 presets or any tweaks I have done to them have given me a sound that wasn't "time-smeared" and colored in a negative way. The real tell-tale is when I am using my RC-2 or RC-10r BOSS looper pedal