I somehow missed the existence of this thread until now. I just want to say I'm really not pleased with the Pico Slim at all. After numerous portable amps, I had finally gotten to a happy place, and smugly so, with my no-more-amps stealth rig. I listened to the Slim with UE11s at CanJam, and I have to admit it did what I didn't expect. You can turn the volume down to a practically inaudible level and still hear everything perfectly clear and balanced, which my iems could not reproduce alone. There is no extra noise, and the sq improves. This is not what I wanted. Really. I wanted it to be just another portable amp I could dismiss. I am not happy about this at all.