what is up everybody ducky and today I'm going to be talking about not the difference between these two speakers but the difference between these two enclosure types which is sealed or ku6 suspension and infinite baffle so first off why two speakers need boxes here's an example of a speaker just free F and if we put a bit of power into it the cone and move forward what happens when the cone moves forward it creates a slight increase in pressure at the front of it at this high pressure when in free air comes around the back and fills in this void created low pressure when the cone moves forward away from this area so that's not very good as it cancels out a lot of the sound from the driver now be showing exactly why using these but a my explanation for how these enclosures work they're going to evolve these two these set of arrows right here these set of arrows represent a sine wave righ