It sounds good to me! OK, I am going by memory here; I read this a long time ago. Normally you would mic a bass amp with a microphone. But what Nickelback did on some of their songs they “miced” a bass amp with some sort of bass amp (not sure if it was a combination amp and cabinet, or just the cabinet). It is kind of like an electric motor: you give it electric power, and the output shaft turns. But you can take that electric motor, turn the output shaft, and the motor becomes an electric generator. So in the case of micing a bass amp with some sort of bass amp, the sound waves from the first bass amp creates pulses of air pressure, which would vibrate the other bass amp speaker, which generates an electric signal. I read that speaker can pick up low frequencies that a regular mic would not. At least that is what I read. Somehow you take that signal and put it into the mixing board. I’m not suggesting you should try that, because for all I know you would damage the mixer. I’m sure you would have to know what you are doing with voltage, amps, and impedance, I am guessing. Like the NS10 woofer used to get extra low end on kick drum?? I would imagine yes.