Velodyne's 'Deep Blue' 12 is a simple subwoofer that offers excellent performance, especially considering its low cost.
Velodyne DB-12 : Read more
Velodyne DB-12 : Read more
On the DB-12, this is 250mm, which puts the effective cone area (Sd) at 490cm².
Sd is an important specification because it means the Velodyne DB-12’s cone can ‘drive’ nearly half a square metre of air! By way of contrast, a typical 254mm (10-inch) diameter cone has a cone area of around 230cm², which means that two DB-10s won’t move as much air as a single DB-12. So sometimes, size is more important than quantity!