Hi Tim. Great video. You did a nice job of explaining the limitations of splitting. I am an electrical/electronics engineer, and I can explain what you demonstrated in a little more detail. Everyone is on the right track. This all about OUTPUT current and INPUT impedance. Each module output CV has voltage (obviously), but the output current supply is the more important aspect when it comes to splitting. When you take a single CV output, and split it, you are creating a parallel circuit (in electrical terms), which provides the same voltage, but divides the current. When you split the CV into two CV outputs, unbuffered, and send them the the input of a VCO, we are now concerned with the input impedance (resistance) of the VCO input (opamp input). Impedance is a large topic in itself, but we can think of it as resistance, which is the amount of current that the input will 'consume' in order to function correctly. A VCO will have a minimum input current to be able to operate. In a 'perfect' world, all inputs would have extremely high impedance, so the amount of current they consume would be very little, but the reality of course is that they do consume a small amount of current. When you plugged and unplugged the inputs, you heard the difference. Since there is some input impedance (also known as the 'load'), and a small amount of current being consumed, there is a resultant VOLTAGE DROP across the input impedance of the VCO. This voltage drop will cause a drop in VCO input voltage, and therefor the pitch. So when we split a CV into multiple VCO inputs, we are dividing the current (reducing the available current to each input), and then seeing that smaller amount of current causing a voltage drop across the input impedance of the VCO. So there are few factors to consider when splitting CVs, or any signal for that matter. First, you want to have a buffered output so that the 'available' output current is high, so that when it is split it is still sufficient to drive the input of the VCOs, etc. Some eurorack modules have good output current characteristics already, so can be split without impacting the signal too much. The second factor is the equipment to which you are providing the split signal. If the module is good, like a high end module, the input impedance will be high, the current consumption will therefor be lower, and the voltage drop on the input will be minimal. The best way to overcome the splitting issue is to do what you suggested by having a buffered output. This is not about voltage, but current. A buffered output has a higher current supply, so that when the signal is split into parallel voltage paths, there will be no appreciable drop in voltage across the input impedance. If electrical specs are available for a module, look for the module with the highest output current, and lowest input impedance. I haven't compared specs on a Moog vs. Behringer, for example, but I bet there will be a difference.

Tim, for the last couple of days you have moved into my living room with your excellent modular tutorials. Not only do you explain things clearly but you also provide highly enjoyable sonic examples and MUSIC!! Thanks for that.

Love the informative, personal, and relaxed delivery of your vids. Great for relaxing and synth dreaming. Thanks for all the things you do sir. 😊

Wow. This was a deep dive compared to the first part, Tim. Always touched by your music. So lovely. Thx for this helpful insights and a healthy 2021!

Love these videos! As for me, planning on getting a modular, this information is gold...

A great video which I found very helpful as I have most of these modules in my new setup, and a very fitting end tune for a Happy New Year! Thanks Tim!

Really appreciating these videos Tim, I’ve been considering getting into Eurorack via these modules and it’s given me lots to think about

At

Tim, Loved these system 100 vids, well done and you convinced me that its the way into my first modular, buy button hit on a bundle plus 182 sequencer, cheers for these very informative blocks of entertainment.

Terrific video. What really made me happy is the fact that the solution to the CV splitting issue is already in my rack, as I collected all system 100 modules. Till now I wasn't completely aware of how useful the 297 module really is.

Thanks for your incredible postings',Tim!

Happy New Year, Tim! Thanks loads for yet another great video on these modules! When they become available again (whenever that might be for us poor, isolated, insular Brits...) I will get what I can! Converted!

Fundamentally, another great video.

This.Right.Here…is really valuable information. Especially when considering pitch issues and CV. Thanks Tim!

Thank you so much for this series. Your videos are generally among the best I‘ve seen, and in particular your modular tutorials are THE best! Also the mixture of explanation, recommendation/comparison and sound demos is perfect to „digest“. There‘s just now a problem: I got infected by the modular virus...

thank you Tim. I've always been wondering about the active vs passive splitters. you have proved my theory :-)

Happy new year and thanks again❤👍

Great stuff Tim. Happy new year.

By the way groove you created is freaking awesome. Good stuff bro!!!

Thanks for all the sound advice here. Practical and informative. KZfaq needs more real content like this Tim. The B 297 is an enigmatic module to the uninitiated. A video on that module would be a great boost. There are no other in-depth vids of this anywhere that I have seen. Cheers