Back to the subject of the Tube EQ, my Tube EQ is plugged into a Vox Valvetronix AD50VT-XL fx loop in which I had to add for this 50 watt solid state modelling amp. I’m also using BBE Stomp(after the Tube EQ) and a 7 band EQ(before) in the same loop. I must say this amp is still two dimensional WITHOUT the Tube EQ on! With it on, it brought out alot more amp than before. I find myself using models that I didn’t care to use before(modded plexi, AC with top boost, fender 2×12 black, JCM etc) that were included for this amp, they just sound and feels good with this on! Using an overdrive pedal upfront is now quite feasible. This amp is like whole different beast now. I even put off saving for a Peavey valveking because of this curious device. Man, now the over driven preset models feel like the sting of 48 hour coffee blend that was reduced on the hot plate WITHOUT this on. Those are my experience with the Tube EQ.