Here's a raw guitar clip of the Quantum Class-A 30W TB (all three sounds) going through the VX30 212 in the new OwnHammer Justin York Collection - Volume I impulse response library. I will chime in and say that I am loving the Quantum firmware, all of the amps I've had time to try so far have sounded great, even ones that I was hopeful but underwhelmed with in previous firmwares. Cliff really knocked this out of the park! Absolutely love the Vox and Matchless amps with the new OH AC30 IR's, to me they go together like peas and carrots. Sounds pretty juicy to me, what do you guys think?