The 901 has been an odd ball since introduction decades ago and certainly not what modern testing methods had in mind.
Erin,Your reviews are truly fantastic, especially the Philharmonic BMR. I encourage everyone to read Erin’s reviews which are a perfect balance of the objective and subjective and are executed with consistency. Good luck and yes, I am getting a sweatshirt (wife approved!)Best,Anand.
This is the experience the Bose 901 series was designed to provide: reproduce the reverberant experience of a concert hall. That's it. No thunderous bass. No spine-tingling highs. No pin-point imaging. No precise articulation. No flat frequency response. Just big, reverberant sound.