I had them.... even heard them on tubes (MC 275)...
One major hurdle ... the equalizer is the destroyer of the sound. If I were to have Bose 901's today? I would get a Barcus Berry Sonic Maximizer and chuck the Bose EQ box. I am no fan of the 901 concept today. But, if you have the right room and good rear walls for it? The BBE would be a modest investment and should make the speakers sound much better.
One major hurdle ... the equalizer is the destroyer of the sound. If I were to have Bose 901's today? I would get a Barcus Berry Sonic Maximizer and chuck the Bose EQ box. I am no fan of the 901 concept today. But, if you have the right room and good rear walls for it? The BBE would be a modest investment and should make the speakers sound much better.