Yesssszz. Can't say enough positive about the S mod. Knew i had something special when i found myself hearing some things with greater clarity than I do with my soundserver playing through my highly modified home system including dCS stack, TacT room correction, and Martin Logan CLS IIz's. Simply amazing for a portable rig. And for those who want to go running with just the AK120, I've used it standalone (no amp) with my headphones and a Shure in-line attenuator. Talked to Vinnie about it. He said I might come up with some impedance related issues but it sounds pretty good.