there are a couple of things that may help you on you search for a new enclosure. how much power? what type of car? these come into play in tuning a box that is beter than a prefab,if not then recommended is the best place to start
i took a look at the subs in question.my thoughts are the icons are hard to beat.did you see they were on sale? since you already have a box built,i would hold out if you have to.i know what its like getting a build together cant happen fast enough.but if you must have a pair of the others, you should build a proper box for them.
i was looking for new stuff and first saw tc sounds lms drivers,which lead me to what people were using to power them and i came across sundown audio and ssa
im wanting to do a build using a mach 5 audio spl 12,sundown audio saz-3000d combo the question is ,will this be a good candidate for a mass loaded enclosure,or t box on the street. im very impressed with what peter w. kulicki has done with two soundsplinter rl-i 8s but i want to understand the enclosure more because id much rather build myself.