Thank you for the helpful and humorous responses.
I didn't expect this level of scrutiny or assistance, and all of it is welcome.
I'll try and answer the myriad of questions as best as I can, but I think where I truly messed up is plugging into the passive input on the bass head.
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I do know what the function of a compressor is. It was recommended to me by the other bassist at the church, to control how quickly a note registers and how long it sustains after being played. I picked up a MXR M87 off of CL and was hoping that it would help to mask some of my inadequacies as I learn and improve. ... So I didn't have as much time to manipulate the settings as I would like.
I left everything at noon, knowing that it probably wasn't doing anything, but thinking that it wouldn't hurt to eliminate the extremes.
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I did not mess with the tone knob on my bass. I am uncomfortable at this point making adjustments on the fly or even during rehearsal, as I'm not totally familiar with what effect it will have to change the tone or rearrange which pickup is being used.
So I set it at home while practicing to what I think sounds good, and then just leave everything as it is for the performance. Brutal honesty there, so be gentle.
I'm sure a more experienced bassist would have no issue spinning tone knobs like a DJ. Maybe adjusting the tone on the fly would have solved it, but I didn't want to do something that would be distracting to people trying to worship.
View attachment 2921577 Here's my bass. Thought that would help, if only to ensure that we aren't discussing carrots.