06-22-2016, 03:23 PM
21" is the PERFECT size for the Vario.
An orbital with a 17" driver benefits from having a couple extra inches of additional bonnet space around the perimeter. In other words, a 21" bonnet is 4" larger than the driver, which actually provides 2" surplus on all sides of a 17" driver. That gives you the extra "wiggle room" that you need.
An orbital with a 17" driver benefits from having a couple extra inches of additional bonnet space around the perimeter. In other words, a 21" bonnet is 4" larger than the driver, which actually provides 2" surplus on all sides of a 17" driver. That gives you the extra "wiggle room" that you need.