I have the chance to buy some cabinets or just a cabinet, that were designed for dual TC sounds LMS ULTRA 5400 18" drivers. The cabinets are 44"/22"/21.75". they are made out of void free BB with heavy bracing in a sealed design. The net after bracing is around 9 cubic ft. and the baffle and top and bottom plates are 1.5". This is the design, and I am wondering if it is a good idea, or if there are better options for subs with Altecs? I just want some of the presence that certain recordings or music halls create and the feeling of space that a big sub can bring.. I would describe what I am looking for is, when a large ensemble comes in, I can still hear a tympani clearly and coming from the back of the room, or hear a pipe organ like I have heard before. Thanks any help or direction would be great!!! I would be using these with M19's or 604 8g's.....