frzdr- One good thing about Aperion speakers is they are all timbre matched so it will not be a problem to upgrade to a 6C. If the upgrade is within the 30 day trial period you would just pay for the speaker diffrence. If after the 30 days it is shipping plus diffrence. If you have original shipping box just contact Aperion and they will give you a shipping label. If not you still have to contact Aperion and they will ship you a box. When they receive your shipped speaker they will check everything and ship out the upgraded speaker. They usually use FedEx so you should not have to contact a shipping company. Hopefully everything I printed here is correct, if not someone else can chime in, Browninggold.
24 hours in a day ... 24 beers in a case ... coincidence?