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Do I need to step down a 3.3V Power supply to work with a device that uses 2 AA batteries (3v) or is 3.3V close enough?

I need to power 14 analog cassette players with a single power supply, I have found a 3.3V power supply that has the amperage to power these devices but I am unsure if 3.3V will have an adverse effect on the speed (or lifespan) of the cassette players as they normal run from 2 AA batteries (3V)