Bringing a split signal back together?

[TheFantod]

Okee dokee,

I've got my custom A/B box working. I want to make some YouTube videos A/B-ing some effects.

My question is, how to I bring the signal back together? This is my setup.



Do I just need something like this?


Or is it more complicated than that?

Tim

[TrevorOfDoom]

you need another AB box

or just get one Boss LS-2. that'll handle all your split sending and returning needs.

[gibsualdo]

Seconding the LS-2, does a ton of other crap too. Great pedal.

Thinking we need a sticky about blending/split signals as well, or maybe I just need to be less anal.

[donut]

Thirding the LS-2.

Or you can put both pedals in line (one after the other) then switch one on, balance on your heels and hit the switches of both pedals at the same time.

[TheFantod]

I've got an LS-2, but I want to use my A/B box for the video, specifically so the camera can show which pedal is being channeled.

I know I can make an effects switcher with two send & return channels, but I'm wondering if my original idea of a Y-cable would work?

T

[RWP]

A Y adapter is not a good way to combine two audio level signals. Here is the explanation.


http://www.epanorama.net/circuits/linesum.html

[TheFantod]

Ah, very informative! Bookmarked & saved.

However, and forgive my ignorance if I'm muddling things, is my situation really combining two sources? The only "source" I'm going to have is the bass, which leads into the A/B box.

In my setup, I have effect "A" and effect "B." They will both be on, but the input to them will becoming out of my A/B box, so only one of them will have a signal going through at any time.

Does that make sense?

T

Originally Posted by RWP

A Y adapter is not a good way to combine two audio level signals. Here is the explanation.


http://www.epanorama.net/circuits/linesum.html

[David1234]

No, the A effect is now a source and the B effect is also a source.

[David1234]

Ahh, and yes, you seem to want to choose between two sources.

Does your AB box work in reverse?

Then try this: Send the bass signal to a Y cable first, and so to both effects, then to the AB box.

Instead of using your AB box to route the signal to either one effect or the other, both effects will be always-on but the AB will be selecting which one to send to the amp.

[RWP]

Originally Posted by TheFantod

Ah, very informative! Bookmarked & saved.

However, and forgive my ignorance if I'm muddling things, is my situation really combining two sources? The only "source" I'm going to have is the bass, which leads into the A/B box.

In my setup, I have effect "A" and effect "B." They will both be on, but the input to them will becoming out of my A/B box, so only one of them will have a signal going through at any time.

Does that make sense?

T

I see what you are saying but you still shouldn't tie to two outputs together with a Y adapter like that even though only one device is being used at a time.

Here is another article that explains the problem.

http://www.rane.com/note109.html

[RWP]

Originally Posted by David1234

Ahh, and yes, you seem to want to choose between two sources.

Does your AB box work in reverse?

Then try this: Send the bass signal to a Y cable first, and so to both effects, then to the AB box.

Instead of using your AB box to route the signal to either one effect or the other, both effects will be always-on but the AB will be selecting which one to send to the amp.

This is the easy answer.

[donut]

Originally Posted by David1234

Ahh, and yes, you seem to want to choose between two sources.

Does your AB box work in reverse?

Then try this: Send the bass signal to a Y cable first, and so to both effects, then to the AB box.

Instead of using your AB box to route the signal to either one effect or the other, both effects will be always-on but the AB will be selecting which one to send to the amp.

Won't that have the same effect as the rubbish bypass old EH pedals have?

[TheFantod]

Originally Posted by David1234

Ahh, and yes, you seem to want to choose between two sources.

Does your AB box work in reverse?

Then try this: Send the bass signal to a Y cable first, and so to both effects, then to the AB box.

Instead of using your AB box to route the signal to either one effect or the other, both effects will be always-on but the AB will be selecting which one to send to the amp.

Brilliant! That's an excellent plan. Yes, it does indeed work in reverse.

Thanks to everyone who chimed in. Leaned a lot today!

T

[RWP]

There is a possibility the signal from your bass will be lowered and not drive your effect boxes due to splitting the signal. If that happens you may have to rethink the situation. Let us know, I will be curious.