BeAlLsTaR13
10+ year member
CarAudio.com Veteran
the sa series of subwoofers is more comparable to the dc level 3, the prices and performance are roughly even except i do know that SA series of woofers will handle more power, seen some taking a good 1500+ think some guy around here has like 2000 going to a single 12, they also like bigger boxes (like 1.75-2.25 cubes or something IIRC), where as level 3s like smaller boxes (1.5 per sub ported) and ive seen level 3s take 1200-1500w per (rob tested a stock lvl 3 12 and it reached its mechanical limits at 2,000 clamped watts) i'd just feel safer throwing a assload of power at the sa subwoofers than dc but if your gonna stick to 600-1000w per sub i'd go with the level 3.