How would you compare it to the RLp 12 I know you have use 1 in the past. 2nd with only 800wrms which way would you go 1-12 sealed or maybe 1 10 ported. I do like the sound of sealed. But I trust what you have to say I have not been around in a while but I have taken your advice in the past. Thanks MJ I have not tested the ICON against my RL-p. I love both subs, but they are somewhat different in design, I do have a triple stack RL-p, but after that they really don't share much in common. With 800watts, that is plenty for both sealed or ported. After some testing and box adjustment for sealed design, I really like the ICON 12 in a .9 to 1.1 cube box. The pair of 10's ported would be a good mix of output and SQ when space is an issue. They are some of the beefiest 10's out now.