With all the money spent on special racks, applications(chassis damping, etc), & various vibration isolation/elimination devices, to shield our amps and/or drain vibrations away from them, it seems totally counterproductive, to place them directly behind full range, dipolar radiators. The .5 to 1M of speaker cable, necessary to position an amp to the side of a Maggie, would be much less detrimental to the system’s sound, than having it boogieing on it’s stand, or the floor. Not to mention the proximity to the Maggie’s magnetic field.