Sound cancelling

[marlin bass]

I recently fitted some new tonerider pickups to my p-j bass but now when I put the switch onto all pickups I lose volume, work fine individually! Should I scrap the switch and re-wire with a second volume so that the pickup loops are seperate from one another?

Any suggestions!!

Thanks Gaz!!

 

[Cadfael]

Witgout having heard your bass I would say that a switch only makes hearable what is normal.

The two single PUs are always a little bit louder than these two PUs in parallel mode.

If they are MUCH louder when single, you might have made a mistake and they are out-of-phase? Switch the two J wires (not the P wires). Does it get louder or even more quiet in the middle position?

If this makes it even worse, change the PU hights of one of the two PUs. The J a little bit more up or the P a little bit more down. It can happen that the hight of both PUs was adjusted so unlucky, that the middle position is not so loud (but this is a rare).

To my mind, two seperate volumes (or a balance pot) make no difference to a switch.

 

[i_got_a_mohawk]

Sounds like it could be a phase issue as per Cadfael's post.

 

[marlin bass]

Hi all

Have just been in the back of my bass and swapped the wires on the j PU and as it turns out hay presto its sounding better than ever!! Cheers for your advice!!

Gaz