Having three(3) cabinets all loaded with Celestion Vintage 30's was bugging me. So I decided to upgrade the older of the three so the great and powerful Mesa 100 watt(4x6L6) Lonestar(always run it in 100 watt mode) head would have something different(American Tone) to drive. And after researching for price, performance and company we choose a pair of the WGS 12" G12C/S. Wow. Now it's like I have a 'Super Bandmaster' cabinet. Loud, clean and California. Here's 'the trick' to make it super easy on the installation. I ordered, in advance, a new cabinet speaker wiring harness from Mojotone. So you simply lift out the original pair, and install the new pair(wired up), screw them in, attach the jack to the backpanel and test. Done. We'll spot solder the speaker harness tabs/leads later.