Passive Mix box

[JK87]

Hi, this is my first post.

I have an idea for a passive set of boxes. first is just a splitter, 1 input jack that goes to two outputs. after that, I want to run two chains of some effects.
and in the end, there's another box, two input jacks connected to a potentiometer, and that pot goes out to an output.

no batteries/ac

Will it work? is there's something I don't understand?
and if it will work, what pot should I use? I want to use it with an electric guitar, so 500k?

I'm new with all of this.

Thank you

[11-90-an]

Hi and welcome...

Just to clarify, in what way do you want the potentiometer to work? As a blend control? As a volume control?

I'll assume blend control, so maybe this..





There would be some volume drop, though...

Try maybe 5k or 10k for the pot...   

Sorry for short(or no) explaination, gotta sleep 

[JK87]

Thank you. that's perfect. exactly what I wanted

[iainpunk]

welcome to the forum

i honestly recommend a boost or something like that after the mixer because you are going to have some volume loss... about half, so a boost or something wouldn't hurt. or you use an active mixer, which is easier in use because there is no volume drop, but harder because you have to make an active circuit, luckily its not to complex to make an active mixer.

also, you should really check to make sure there is no phase shift/flip in one of the signals because that gives 'fundemental cancelation' and it makes the signal weak and thin sounding.

cheers, Iain

[antonis]

Hi and Welcome, also..

I'd suggest Iain's second notification to become first one..

[BJM]

I just finished building a splitter/blender and a matrix mixer in two 1590B enclosures. The splitter/blender is basically the ROG splitter/blender but I doubled the outputs (4 instead of 2). The matrix mixer is passive, four inputs (2 of them A/B switchable) and two inputs to mix parallel effects. One output has a portion of the A/B input (to send to another effect), the other output has a mix of the A/B input and the two other effects chains, with also a footswitch to switch between outputs. More work than totally passive but so far it works well (only tested at home) and more options than most splitter boxes. Guess it sounds a little complicated...... but if you're interested I can post some pictures . Matrix mixers are often passive and combined with a footswitch to select a "column" very flexible and simple to build.

[iainpunk]

i'd love to have a matrix mixer, but i detest passive mixers, to many bad experiences, so active it is!
but first, i have to finish the two fuzz/distortions im working on, and then a scratchy reverb unit (a spring that drags over the bottom).

cheers, Iain