I have several modelers and i was noticing that my Singtall IR (made by Fremen) sounds different on the Fractal units. on the Fractal units it sounds REAL close to the TV cabinets, so i stopped using my IR and I use factory cab instead. I acquired a line6 Helix a couple weeks ago in a trade and i loaded my IR to have a solid base to start from and it was much brighter and had for more bottom. i experienced this same phenomenon when i loaded the same IR into the Atomic AmpliFire. I was told by another company that they think Cliff has some filters running to make everything sound warm instead of the natural tone of the IR. it's like Cliff "fixed" what many people complained about in other units and made the Fractal units sound more amp-in-the-room. i remember back in the day when i had to roll off highs and lows on IR's, and now...not so much. any idea if Cliff actually "warmed" the Fractal units up?