I lean towards the Magnum, as the higher fs gives higher SPL. It does have less excursion but real world testing results show that it is quite adequate; being able to take full power below 50 Hz without exceeding xmax isn't necessary because the musical power spectrum is not linear and just doesn't require it. The Beyma is a fine driver, but at nearly twice the price of the Eminence not an economical choice, while its xmax advantage over the Magnum is equal to only 2dB additional output.