Well as of 9am the "Silo II" has a new home with Dan Carney, another forum member here in the area. He was going to build one himself but decided he didn't have the time so I went ahead and sold mine to him . So now the question is where do I go from here? I have already made and sold 3 different style subs... 1) 2 sealed P.E. Titanic based 2) a Single vented Tempest sonosub tuned to 17hz. 3) a dual Shiva sonosub tuned to 20hz. I have been toying with the idea of going I.B. and have been given the green light to go ahead with it but I wonder if I will like it? And if not that means I'll have a hole in the ceiling to patch! Well I am going to Rich Kraus's house in a little while to hear his again, it's been quite some time since the last time I heard it, to see if it might be the route I want to go. So other than I.B. do you all have any suggestions, bearing in mind what I've already had?