I own 1 12" XXX and i can vouch for them...they are amazing subs! Not that the ID Max isnt but as everyone else says the XXX is going to get louder and still retain the SQ. And 1500 wrms is plenty that is what i will be upgrading to for mine! I am running it on 1000wrms with gains at half and it gets loud enough you dont want it turned up for more then a few minutes! ANd that is one 12!!! I believe MattJ has a similar setup to mine with more power then me and (correct me if i am wrong) I think he is hitting 143db's on the linear X mic! Now if you go with 4 12" XXX's that is 4 times the subs and POWER he has!! If you arent hitting 158 i will be suprised!!! SERIOUSLY!! You need to be careful with that kind of power! In a daily driver with that kind of wangage hearing damage is pretty much a given! You could run everything at the minimum level and be rediculously loud! But anyhow man if you are putting that much into the system step up to the XXX it will be worth your while! Although i hear the IDMAX is a great sub i dont really think it is quite on the level of the XXX....Now i do hear exceptional things about the SI Magnum D2. I myself prefer the looks of the XXX so i chose it over the D2 but either is a great choice over the IDMAX!
gitterdone,
Ian
gitterdone,
Ian