- Sep 2, 2019
- west coast, USA
gas-tight refers to the metal-to-metal interface between the crimped items. heat-shrink over the whole thing helps provide a strain relief which is definitely needed with the larger gauge / heavier speaker wires. some believe soldering after the crimp thermally stresses the crimp interface, so why not just solder in the first place (or make a proper crimp, which often means different crimp dies for each lug & wire gauge combination, lug material and thickness changes the overall height of a crimp)A crimp + solder + heat shrink connection isn't enough or is there something special about gas-tight vs the heat gun solder stuff?