I have a pair of JBL 4425'S they are consecutive serial numbers but they are not mirror image. Controls are on left side of both speakers. Is this possible?Is it such a big deal if there not mirror image? When I crank these things up I have to tell you they sound awesome, crisp and clear. Do I really need to replace one for mirror image, or is it one of those things that you can live without? Your thoughts. Thanks!