Hi all. Getting my Jazz bass shipped back from
Sweetwater today. It’s pretty cold here in Tulsa, curious if I need to wait to open the box and check out my new setup? I’ve heard differing opinions and usually the weather extremes aren’t bad but we have sub freezing temps for daytime highs since my bass has been on the road. I’m excited to try it but don’t want to mess it up. Thanks!
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Is it being shipped in a case or in a cardboard box with packing material? The box with packing material would probably be slightly more insulating, especially if any seams where the cardboard box closes are taped up where no air can get in, BUT, if it’s in a case that is also inside a taped-up cardboard box, it’s also pretty well insulated. Cardboard has a higher “R” value than the same thickness of fiberglass and is used as building material in parts of the world with lax building codes. Its fire resistant properties are kinda weak

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It’s hard to know what temp the box or case has been in since it was closed or how long it was in which temp, or what the temp of the bass itself was when packed. If the core wood of the bass cooled to somewhere in the 20°’s F, it will probably take a few days to come up to the indoor temp of your house
if it remains packed. Without a lot more info, you might be waiting for your bass to change no more than 8-10°F.
If GC receives a solid body instrument shipped to their store in any weather or if Fender receives a solid body bass sent back for repair shipped in any weather, they both wait until they can find a box knife before opening the package….
For
thin solid wood (not laminated) top, back, & side acoustic instruments, it’s a whole different animal. Due to the thin wood and how much surface area is exposed to air, a quick temp change can cause a crack in the wood or separated seams.