>>In the owners manual Bose says that not using the equalizer will have the effect of no highs or lows with the 901s.

"No highs, no lows, EQ that Bose" ?

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8