not at all.
as posted above id parallel everything and run a 0.67 ohm load. Get a good solid amp from a good company and itll run fine at that load. Also make sure your electrical system is up to par.
-Big three upgraded to 1/0
-a beefy batt under the hood..preferrably a group 31 batt of some sort (optima g31 yellow or bluetop ((dont waste your time with a redtop)), powermaster d3100, odyssey pc2150)
Look for 2000-3000 watts @ 1 ohm...never hurts to have too much power.
-Old orion 2500d's are a good choice on a budget. The all silver ones...id stay away from the newer style ones though.
Heres another great option. Series your woofers coils to make 8 ohm per woofer then parallel all 3 woofers to make a 2.67 ohm final load. This sound digital amp is killer and will make a ton of clean power. Its also only 11 1/8" X 11 1/8". Nice tiny footprint for such a powerful amp. These amps are also 5 YEAR WARRANTY. Cant go wrong.
-sound digital SD2k5D (2ohm version)
or you could run this amp which is also an excellent amp from Brazil. And very small footprint too. 13 X 11 1/8"
-stetsom 2k5d (2 ohm version)
12.6 volts input voltage
1850 @ 4 ohm
2500 @ 2 ohm
13.8 volts input voltage
2200 @ 4 ohm
3300 @ 2 ohm
Or you can always run two smaller strappable amps. And series the coils then parallel the woofers so your final load is 2.67 ohm or 1.33 ohm per amp. So if you go this route you would want amps that do 1000-2000 watts @ 1 ohm each and make sure they're strappable. Gain matching is ok but strappable amps are far more reliable when running 3 woofers to a single strapped pair.