The driver has an Re of 3.2ohm with coils in parallel according to the manual, which the impedance won't drop below. So as long as the amp is stable to 3ohm or lower, he'll be fine. If it's not, then it's a crap shoot.You will have to have a resistance curve at given frequencies to determine if it will run it fine. Just because its nominal is 3 doesn't mean it won't/ can't go all the way down to 1 ohm at certain frequencies.
Or you can run it and make sure it doesn't get hot.