I am not disagreeing with you but... I do know that you need an amp with "ultra high" damping factor for an infinite baffle setup. Meaning that class D designs are out of question. I have a friend competing in IASCA shows for a year now and when discussing about damping factor with other competitors, it seems that it is useless when having a low Q design (eg. sealed) however it does make a difference in SQ when using it with ported designs and IB ones. Even thought it is really useless, my mind will always think "hmm... sounds better now" lol I have a Milbert tube amp for the front stage, and I have read the whole explanation about damping factor on their web site. That is why I said that it might be a myth: http://milbert.com/articles/DampingFactor.bdc