hmm i think that was the de-1000 when they first came out, they had the endcaps wrong but they fixed after a bit (i think thats right, but i know what your talkin about). that one he has is 2ohm stable but can be ran down to 1ohm as long as you keep the current/voltage up. the DE-1000 without the half moons are the ones that are labeled for 1 ohm and put out full power at 1 ohm.