Ok let me explain or spell it out for the kid that said I did'nt know what I was talking about. If play a sub, espeacialy in a ported enclosure, with the hatch open or in a SUV with the back up then your sub has NOTHING TO LOAD OFF OF! It causes your sub to have to work much harder, this is even more true when you play at certain fequencies. This is called "SUSPENSION FATIGUE". Will this happen the first time, maybe or maybe not. To play your sub unloaded is not a good idea at all and can very easily damage the suspension of your subwoofer and thats just for starters.Point 2. Common sense should tell you that if you take an amplifier and shake it around alot that you could damage it. An amplifier has many small components inside of it and it only takes one of them comming dis-lodged to cause the amp to not work properly.Do you really think mounting a amp directly on to a sub enclosure is a good idea, you deserve a damaged amp then! Like I stated earlier, does this happen all the time, no it does'nt but it does happen and I've seen it happen more than just a few times in the last 20YEARS I've been around car audio. It's just not the best place to put your amp that you just spent a-lot of money on!!
Ive been in car audio sice a year before you were even born so don't come at me saying what I hav'ent seen before because there is no way for you to know that.
