They have the same board as the American Bass VFL 400 but the VFL uses cheaper parts so the rail voltage it lower. The Hifonics can run at .5 ohm all day with a nice fat supplemental battery and chubby Big 3 without running and upgraded alternator. However, you are inclined to run a pair of them. This may require more than the above mentioned current upgrades, seeing as how you will have the potentional current draw of 500A( 250 each amp) you should look at a larger alt as well as larger batteries. You will not be wasting your hard earned dollars on these amps. The newer boards do not get as hot as the 08 series and have up-graded the boards to such a degree, the 08s and the 10s do not share the same heatsinks. Futhermore, the amplifiers efficiency has been increased to such a degree, you can run the newer model of an amplifier of the same specs, (1608 vs 1610) and see the fuse size decrease but the output remain the same. Apply this to the 2610...