Short scale bass and strong fundamental producing cab buzz

[Feef3412]

Here's a crazy twist. Raised the action of that one string and probably is mostly gone. ?!?!?!

Buzz behind the fret causing such a ruckus in the amp / cab? That's what makes troubleshooting so insanely frustrating. 0.001" can make or break you. Ugh.

Thanks for all your help. Bass is both my therapist and the source of my madness at times.

 

[Feef3412]

And lowered the pickups. 90% solved. Unless I dig in REALLY hard.

Sometimes throwing things out to the universe (and TalkBass) helps to work through issues. thanks to everyone

 

[Tim Skaggs]

For a long time I thought it was something wrong with the cab or the bass.

There is something wrong with the cab if it's buzzing at a reasonable volume. Something of some kind is loose if you have eliminated the bass(es). Scale length won't have anything to do with it, a long scale will do the same fundamental AND overtones to boot. If it's the cabinet, find it, glue it or screw it. It won't help much to tattoo it….

 

[LiptonJigglers]

Only speakon connectors. It's a GK Neo IV 1x15. To me it sounds like "zap," like one of those old hand buzzer gags. Only on the high E on the D string. Around that area, to some degree. Very strange. Every shorty, every amp, every cab.

I experienced this with my second hand GK Neo 212ii cab recently.
Only noticed it when someone else was testing it before purchase. Sale didn't go through because of it.
Found two problems: first was the back panel mounting screws had cracked the wood and a thin strip was still in place but rattling around causing an annoying buzz.
2nd issue; In the process of investigation, the crossover board snapped off too. Yay, how awesome is that?
Ended up removing wood debris, making a new plate with 1/4" jack, cut wires to the tweeter and glued and screwed new plate back on.
No more rattle. Cab sounds fine.. I don't miss the tweeter either.

 

[bcbassman]

Resonance buzzing is caused by a particular frequency vibrating a sympathetic part or panel in your room, amp or bass. Pickups and strings have nothing to do with it. Tighten up your cabinet and bass if the buzz is emanating from them. If its your room, relocate your amp to another room or live with it until you find the loose panel or piece of furniture and tighten it or relocate it. Good luck.