ARC in just the bass section and not touching the mid and tweeter at all = much better and far more flexible. 9H is also sealed, has two more woofers, beefier woofers, different cross over from mid to woofers, etc
The $10,000 upgrade ($8,000 or less during the promotion right now) is dollar for dollar a steal of an upgrade.
The $10,000 upgrade ($8,000 or less during the promotion right now) is dollar for dollar a steal of an upgrade.