The great thing about this is that you don't need to send anything back right away. You can put the old crap smile you're listening to side-by-side with the new gear and hear what you've been missing all these years...LOL! As for the shipping boxes, you can use the boxes from the new gear to pack the old gear. Use one box for each piece though and stuff lots of newspaper in there. Deb says it works better than bubble wrap. Confirm all this with Deb though before you start packing. She may want to send you new shipping boxes. You may want to wait a while because I'm sure they're going out of their minds over there right now fulfilling Black Friday orders.

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated