You can also use expanding packs. Get a heavy double or triple thick cardboard box with at least 2-3 inches all the way around. Make it if need be. Just cut down from a HEAVY Refer box or something like that.
Use reinforced fiberglass tape to hold it together.
Put heavy styrofoam blocks in place to center the amps in the box. Tape them in place.
Get heavy plastic bags and bag the amp. Set your expanding packs in place. Place the amp on the taped styrofoam and set off the bottom foam bags.
Set the top bags, set them off, close the box, but don't tape it.
Inspect your work after they set up and see if they need trimming or an XTRA bag or two
https://www.uline.com/BL_7708/Instapak-Quick-Room-Temperature?pricode=WB140&AdKeyword=expanding%...
If you really want to go nuts build a 1.5 - 2 x 4" external frame with screws and glue. Remember don't glue what you're gonna take apart to get the cardboard box out of the wooden crate (has open slats).
I did the exact same thing BUT the inner box was lined with heavy felt and it was made of 1/4" ply wood and held together with leather belt straps..
I used that set up for 10 year traveling. Everything fit and was strapped to a dolly. A pair of MC30s and a C20, and all my needed STUFF. I NEVER broke a glass in all that time.. I worked on sea going tugs and mobile drilling platforms. It got rough out there sometime, pulling some nitwit off the rocks or foul weather hit...
Remember the Santa Barbra and Exxon Valdez, I was there for both cleanups, what a MESS..
Regards
Use reinforced fiberglass tape to hold it together.
Put heavy styrofoam blocks in place to center the amps in the box. Tape them in place.
Get heavy plastic bags and bag the amp. Set your expanding packs in place. Place the amp on the taped styrofoam and set off the bottom foam bags.
Set the top bags, set them off, close the box, but don't tape it.
Inspect your work after they set up and see if they need trimming or an XTRA bag or two
https://www.uline.com/BL_7708/Instapak-Quick-Room-Temperature?pricode=WB140&AdKeyword=expanding%...
If you really want to go nuts build a 1.5 - 2 x 4" external frame with screws and glue. Remember don't glue what you're gonna take apart to get the cardboard box out of the wooden crate (has open slats).
I did the exact same thing BUT the inner box was lined with heavy felt and it was made of 1/4" ply wood and held together with leather belt straps..
I used that set up for 10 year traveling. Everything fit and was strapped to a dolly. A pair of MC30s and a C20, and all my needed STUFF. I NEVER broke a glass in all that time.. I worked on sea going tugs and mobile drilling platforms. It got rough out there sometime, pulling some nitwit off the rocks or foul weather hit...
Remember the Santa Barbra and Exxon Valdez, I was there for both cleanups, what a MESS..
Regards