So, I borrowed my Trace Elliot SM7 gp 250 head and (I don't know model) 2×10" TE box to my drummer. He said he plugged in an 6-string bass and detuned B string.
When I turn on the amp, and play, there is loud clicking sound coming from it. Higher I set the volume or lower note I play, louder the clicking is.
When I plugged in another box, there wasn't that clicking.
What do you guys think happened to my trace, or how can I fix it?