I own an FM3 and really enjoy the audio/sound from a good pair of headphones connected to that unit. However on trying multiple setups using active speakers and or speaker cabs find that the sound is dynamically not in the same ball park. I have tried active Presonus Sceptre S6 monitors, Tannoy 5s, hi-fi speakers, various guitar cabs with IR removed in preset and an acoustic amp. All in various rooms. Have listened both very close to the speaker(s) and more in the room location(s). None of these produced really what I hear in the headphones. That is, more of a dynamic tightness with some snap to it in the mids and higher ranges. That quality just does not seem to get produced by room speakers/cabs etc. I believe I have heard others say something similar. Given that the transducers in headphones are small vs larger transducers/speakers in room monitors and the like the physics of production maybe be the reason for this but not sure. I have tried to take out the room sound out of the difference as much as possible. I have tried various eq methods but really does not get much closer. It is more of a dynamic difference than anything else. Not sure there is an answer to this but would still like to get closer to the headphone sound using actual room speakers/cabs etc. Any thoughts?