The way it works, one core for each two sids.
The sid v2 IIRC is supporting this, and this is the current version. Now, I’m no coder at all, but my best guess is that the sid app is so complex, and already some advanced coding skills have been in work to make it to the place we are at today.
The obvious solution would be to use two cores in the same box, talking to eachother, so that u have one LCD, one control surface for both of them. Remember this thing u are building is modular, so u can do a completely working two sid version and when u get the funds, u can add on the second core and the third sid. Also when more money is available, u can buy a 4th sid and have dual stereo in the end. No need to spend a the money at once if u can’t afford to do so.
Obviously u need a sid board for each sid also.
As for outputs, u can do whatever u like. If u have electronic design skills, u can make a simple signal mixer to blend the two first sids to a mono signal, but that is lame. After all, the firmware is built for stereo.
When u add a third sid, this could have its own mono output, or u can make a mixer and a pan control to blend it right in there with the stereo signal from the other two.
If u have no design skill in electronics, best and most economical way is to buy a small mixer.
In the end no matter how u turn this around, you will have one mono output from each sid. It’s just different how people treat it afterwards. Some feed a pair of mono signals to a stereojack. Wich does nothing else than spare u of using two mono jacks. If u only have two sids, if u look logically at it, u need a stereo input to feed it to, wich is either a mixer with a stereo channel strip or two mono strips, or straight into a stereo amp.
The in-box mixer really becomes interesting to have when u have more than two sids, or if the amp u are using is mono only, in that case, get another amp hehe. A mono only system is not giving it synth enough room to play hehe.
In case u wonder about mixing the signals from more than two sids in-box, to build that u need a potmeter for the pan control and a handful of resistors, pluss a couple of caps. Nothing really complicated about if u know how to build it… What im saying, it would be a very basic circuit, no magics at all, but u need to know those basics before u get there.
I am working on some designs for just this case, but they are not ready yet, and I have no idea when, but if u google for audio mixing circuit, u can go with the passive variant, I’m sure u will find all u need if u are able to read and design from schematics…
And one last word of wisdom, the info on the mbsid, what it is, what it is not, what it can do and don’t, is all on ucapps.de.
Oh, and welcome, and have fun! Don’t worry about it taking time to build hehe. Give itself time to do it right the first time, and plan what u are doing, so u are not doing 10 things at once, that way u have a much better chance of success the first time. Searching for errors is more pain than making sure its right the first time.
