I just did something and I’d like to get confirmation that I’m not potentially harming anything. Any insight appreciated. I have an old SWR Black Beauty amp that I’m convinced has a broken or loose solder connection somewhere, but I can’t seem to find it. It works fine *most* of the time which is okay - I got it used for practically nothing. And since it weighs 9,000 lbs, it’s just for basement jams anyway. As my bass playing has improved, I decided to get a newer amp and have an Aguilar TH500 on its way. Since I haven’t decided on a cab yet, I’ve decided to mod the Black Beauty to work as a cab until I decide what to get. I drilled a hole into the back of the cab and mounted a Speakon jack with the wires from the jack going to the additional positive and negative tabs on the speaker itself... leaving the wires going to the Black Beauty’s amp section. I tested it and it seems to work: The BB amp works as it did before regardless of the additional jack and if I turn off the amp, I can run another amp into the cab through the Speakon jack, and use it as a 15” cab. I know I have to make sure I never run both amps through the cab at the same time and make sure I don’t overload the BBs speaker with the TH500. But other than that, am I missing something? Any harm in leaving the wires going from the speaker to the amp section of the BB if the amp section is off when I use it as a cab?