As you know already, I was following Vince's footprints on design. The cabinets were to be made of MDF with 1-1/2" thick front baffles and enough internal bracing to support a house. When I was finished drawing these on AutoCAD, each cabinet would have 14 different pieces. Needless to say the cabinets were going to dwarf what he had, due to a vented design and duh, bigger drivers in general. Like I said, I was looking for clean sound that was as dynamic as possible, so for the mids and highs I went 100% sealed, with the crossover located in a chamber behind the upper portion of the cabinet. The woofers being cut off around 450Hz, I decided to go for that added low-end and use a vented design. This would also complement the overall cabinet size I was trying for (at almost 4 1/2' feet tall, their not bookshelf speakers by any stretch of the imagination).