I dont know much. Sent 777 just one time. It was pain to find a good box but i made it with a huge box from active speakers. The whole parcel turned to Docs in damn bad beaten shape. It was open at the customs in England and filled with old papers and so. The outer box was so badly bumped that i try to imagine how Docs heart just skipped. But damn the layers of bubble saved the boomer. I think just the function button was slightly broken. The only thing which is workin for any boomer in m opinion is a lot of layers of bubble. My way now - the layers of bubble (and i mean the big heavy duty bubble) are half of the count of the kilos. For example - 10 kilos = 5 layers . It works perfectly. Most of the shiping companies have a standard - any parcel must survive a drop from a meter. I ve made a try with a cheapo boomer - layers of bubble + heavy duty carton box and boomers fitted not moving inside.... Dropped the whole package from the table - nothing happened. Just small dents on the carton. It looks that the bubble protect and the outside of the package. Not a big deal and hard to make. Sort of costly for the damn expansive bubble wrap lately , but totally close to safe for normal drops..... And a good heavy dudty carton box is around 5 euro + around 5-7 euro for the bubble - its not so big deal to save the boomer.
Personally i would never try mu luck whit china seller. Too much hassle
Personally i would never try mu luck whit china seller. Too much hassle