When shipping Triton 1's or the Reference speaker, presuming original boxes,must they stay upright during shipping or can the boxes be placed on their sides?

For Triton One, One.R or Reference, they should lie flat on their original skid (or a new one of the same size), ideally with the wide side of the speaker boxes down. Do not ship any of these models without them being on their original or same size skid.

Triton 1's I've seen many shippings were made that being flat but I don't see any problems occurring in those tower speakers