It shouldn't be a problem. All it does is crank up the treble and base since 901 series really don't sound good without it. Then again the 901s don't sound that well to begin with, but they work well for a PA type system because you can turn them up very loud without blowing any drivers.
They don't take much of an amp to drive them to very loud levels.
I have had some experience with 901 series and you really need to find the right place to put them in the room.
The equalizer might cost you $50.00 dollars but you could sell the speakers for a few hundred bucks and buy something else.
If Bose would spend less money on advertising like Polk maybe they could spend some money on buying decent drivers for their speakers. They charge $ 1000.00 dollars plus when they spend a few dollars per driver. You are better going to Parts Express and buying a speaker kit with the same cheap drivers or getting a kit with much better components.
Save yourself the money and sell 901s and buy some good used speakers or some decent new ones.