Double Neck Signal Switching Question

[10pizza]

Hi all

hope someboy can help me with this.

I have a Bass/Guitar doubleneck:

To be able to send the guitar signal to a guitar amp and the bass signal to a bass amp, I've installed a stereo jack to send both signals seperately to a switchbox. in the switchbox, I've split the stereo signal to two mono-jacks, 1 for guitar and 1 for bass. Ground is shared.

using the selectorswitch on the guitar, I select either bass or guitar.

the problem is however that when I play bass, my guitar amp is giving a lot of noise and vice versa when I play guitar.

My idea of a solution is to bypass the selectorswitch on the guitar and have a DPDT footswitch installed in my switchbox to mute the guitarsignal when playing bass and vice versa, by shorting the non-used signal to ground.

I'm afraid however that when I switch back from 1 instrument to the other, this will result in a <plop> or <crack>sound in the amp because of the switching from ground to signal at once.

Will this indeed happen? Is there a way to prevent this?

Schema:

thanks for your help!

[Saber]

If you use a make-before-break switch, the click shouldn't be too noticeable.

On the other hand, I don't know how your guitar/bass is wired but couldn't you just do this with the selector on your guitar:

Edited August 20, 2008 by Saber

[10pizza]

Hi Saber

I'll maybe need another switch for that in my guitar, but something worth checking, thanks.

My preference is a foot swicht however, so I can switch between bass/guitar faster.

ultimately I'd also like to build in 2 LED's in my switchbox to show which signal is active.

thanks

Edited August 21, 2008 by 10pizza

[Saber]

Then you could use my SPDT circuit in your footswitch instead. You don't need 2 poles for that. However, you could use the second pole of a DPDT for your LEDs.

[Acousticraft]

I would have two mono jacks so the circuits are completely separate from each other. A simple cure I think.

[AcousticSmash]

Wouldn't it be safer to have two individual grounds for both guitar and bass?

Edited August 29, 2008 by AcousticSmash

[10pizza]

thanks Acoustic Smash

I don't want to drill another hole for an extra mono-output, so I'll stick to the stereo with external box.

I'll do some experimenting with the grounds and a footswitch, see what happens!