Hey Guys, Definately plenty of info on this forum, but what I havnt been able to find in browsing it all and searching is how they calculate the driver displacement, ie how adire says the Tempest displaces over 2.5L of swept volume, Tumult 5L etc. From what I've seen it may be xmax x Sd? Then converted to Litres somehow? Or someone mentioned Vd somewhere. I'm confused, any help would be appreciated.