Hi all. I have a squier jaguar bass (the one with the single humbucker pickup, which I replaced for a Seymour Duncan SMB-4d) and have been happily gigging with it most weeks for the last year or so without any issues. Then a few weeks ago I was asked to step into the band for a community panto being held at the local arts centre/theatre. On this first rehearsal we were in one of the downstairs dance studio rooms but I could hear everything that was being put through the PA system in the main theatre room coming through my amp. Really strange, I thought, so tried different cables, different wall sockets, took my pedalboard out of the chain and nothing stopped the noise coming through. The only thing that would change it was unplugging my bass from the amp or rolling the volume on the bass all the way down.
I took the bass home, resoldered some of the wiring and put a load of shielding in the cavities. Went back to the venue the following week and was still having the problem. This time I even tried plugging bass directly into a spare PA speaker and still the noise.
...and here's the question...I got home and realised that the pickup had been wired in series, rather than parallel. Am I right in thinking that when it's wired to series it no longer acts as a humbucker? Do we think that this might solve the issue? Any other suggestions welcome.
Thanks