Being the owner of Audioque I can state that the AQ's are not the same design as the DD. They are designed by my son ,Jassa Langford, the chief designer and one of the owners of Digital Designs.
We do use a common basket on the HD models. We also use laminated lead wires, direct connection and the EROM surround because we believe it works the best.
We don't use the same spider compound or the same motor design. The top and bottom plates are of a different shape and thickness and the pole pieces are different. We machine our own motors and use no "off the shelf parts".
We build each sub by hand and use no "preassembled" parts. We do use Chinese magnet slugs and cast baskets because they are not available in the U.S.. All the other parts are made in the U.S..
We stock no inventory of subs. We build each sub as the orders are placed.
We assemble our subs in our family owned buildhouse.
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