Sealed box and acoustic suspension are not identical. All acoustic suspension loudspeakers are sealed, but the opposite is not true.
Sealed enclosures are obviously unvented, but the box is big enough to leave plenty of room for the back wave, and the speaker drivers have normal suspensions, rigid frames, and strong magnets to return the drivers to the neutral position.
Acoustic suspension speakers rely on a specific volume of air to power much of the rebound to center after an excursion or incursion of the driver. Thus the acoustic suspension model doesn't need as powerful a magnet, nor as rigid a cone because the air in the sealed box performs much of that function.
As for sealed box speakers, both Magico and YG use sealed enclosures. I'm sure there are more.
Sealed enclosures are obviously unvented, but the box is big enough to leave plenty of room for the back wave, and the speaker drivers have normal suspensions, rigid frames, and strong magnets to return the drivers to the neutral position.
Acoustic suspension speakers rely on a specific volume of air to power much of the rebound to center after an excursion or incursion of the driver. Thus the acoustic suspension model doesn't need as powerful a magnet, nor as rigid a cone because the air in the sealed box performs much of that function.
As for sealed box speakers, both Magico and YG use sealed enclosures. I'm sure there are more.