bass problems

my 4 sting semi attive pick up bass is crackerly all the time and when i tuch the back it ever get worce or stops what can i do

im not sure, this sounds like a problem for DubHertz.

have u tried a new battery?

I was going to suggest that but they last for ages don't they? Most people change 'em every six months but I think it's not unheard of for batteries to last over 2 years.

yeh i havent changed mine for about a year now

the tereball nock was all ways a lil losse

Well its worth changing the battery just to check. Also try a different instrument cable...mine was crackling loads this morning until I changed it over.

thanks

the only thing is when u tryed my old bass it not do it

Then it's definitely a bad battery or an electrical problem. Consult your local music shop.

Sounds like you have a bad solder joint somewhere..

Is it a constant crackle or does it only occur when you adjust the controls?

yes and when i tuch the back it i sort of tap very gentery the back it stops and yes when i tuch button dose crakel bad ive change battery and no change

You need to open the control cavity at the back of the guitar and check the solder joints, Starting at the jack plug then the volume, bass treble controls and if possible the pre-amp circuit board, If you are not techically minded enough to carry out the procedure then I suggest you take it to your local music shop to see if you can get it repaired