Slightly OT: stereo and mono audio splitting

[Ral-Clan]

I don't understand why you don't just use Y-splitters.

First you need two of the following spec:

"Single male RCA to 2 female RCA Y-splitter"

Plug the male parts of these two Y splitters into the left and right audio outputs of your A1200.

Then with a regular paired RCA stereo cable take ONE lead from each of the Y-splitters attached to the Amiga's outputs and route them to your monitor: now you have stereo output to your monitor.

Then you need another Y-splitter (type of connector on single end is up to you, but the "double" end must have male RCA connectors).

Plug the male connectors of this Y splitter into the other two leads coming from each of the Y-splitters coming from Amiga's audio outputs.  You are now mixing the stereo signal into a seperate mono one which you can route anywhere.

Total cost is about $10 at Radio Shack.

You can also get stereo RCA cables with "pass-throughs" at one end, so you can come up with some other similar solution.  They are essentially Y-splitters with one (very) short lead and 1 very long lead.  Might save you a couple of connectors compared to the explanation above.

[Ral-Clan]

Oh right!  Of course....you're creating a common "pool" so everything is "mono-ized".

But why resistors?  Wouldn't a couple of diodes placed on the L and R wires just before the signal in combined to mono prevent "flowback" and mixing of the combined signal with the stereo signal being fed to the Amiga?  (I don't know much about electronics, so the answer is probably obvious...).

[Ral-Clan]

Yeah, I was thinking of that too.  Behringer has some very cheap stereo four channel mixers (you would need ones with PAN controls on the channels).  There are even cheaper brands (which I wouldn't trust to audio production, but should be fine for your purpose).