• TalkBass has been independent since 1998. Add your voice.
    Create a free account to reply to discussions, view embedded media, and browse with fewer display ads.
    Join freeLog in
    Want zero display ads or expanded classifieds tools? Compare plans.

Humming

caeman

The Root Master
Sep 17, 2008
7,334
345
Ohio
Should I be hearing a humming sound when no string has been touched?

I have a Johnson 5-string bass and I wondering if its stock pickups or electronics are a problem, or if this is a normal behavior.
 
To me it seems loud, but this is my first bass, so I have no prior experience on which to base this assessment.

The web site for the guitar only states J-Style and Soap Bar pickups. I haven't removed the covers to see what it underneath, yet.

Here is a pick of the model:
JJ-330_large.jpg
 
Should I be hearing a humming sound when no string has been touched?

I have a Johnson 5-string bass and I wondering if its stock pickups or electronics are a problem, or if this is a normal behavior.

Here's the noobie information you need. There are two types of hum pickup, electric and magnetic. If you have a hum in your bass when you aren't playing and you are not touching the strings and then you touch the strings (or a metal knob or the jack or other metal grounded parts) and the hum GOES AWAY (or becomes much less) Then your bass has a shielding problem. Search online for bass or guitar shielding. You can buy sticky copper foil to do the job.

On the other hand if the hum does NOT go away when you touch the strings, BUT if you wave the bass around in all manner of weird orientations and can find an orientation where the hum seems to "null out" then you have a magnetic hum problem that can only be fixed by moving away from the source of the hum (usually large transformers etc) or installing hum-bucking pickups in the bass.

That's the basics.