I don't think a lot of people will be cross-shopping the ED A7-900 and the Sub 1/Sub 2. Ported vs. sealed, 2 huge drivers vs. 6 small drivers, huge prism-shaped enclosure vs. small hexagonal enclosure.
The JL Gotham is a closer comparison to the Sub 2. The upcoming SVS SB16-Ultra should be a good comparison to the Sub 1. Anyone spending that kind of money on a sub probably already has their mind made up on ported vs. sealed.