if ur running l7s, u would want a one ohm stable amp anyway (considering you'd be feeding them at LEAST 600 a piece), so getting the dual 4s would be useless
apparently, the bx1500d isn't being made anymore... //content.invisioncic.com/y282845/emoticons/crying.gif.ec0ebefe590df0251476573bc49e46d8.gif//content.invisioncic.com/y282845/emoticons/crying.gif.ec0ebefe590df0251476573bc49e46d8.gif//content.invisioncic.com/y282845/emoticons/crying.gif.ec0ebefe590df0251476573bc49e46d8.gif
i am going to run one for about a year and then i am going to buy another when i get a new car. i ordered one from hi fi sound connection that was a 2 ohm dual voice coil