I don;t have a logic module but think about getting one. I will say, you can find the audio equivalent of the logic and scale it whereas the prismatic ray, not too sure
You are correct about the higher frequency range of the prismatic ray. There are other uses for them too like "keying" that you would need a video keyer for that is currently out of stock and the prismatic rays do much more and key differently.
Here is some links to where I am using the pr as a keyer:
Yes about the LZX TBC. If the rack tbc you have has genlock input or sync I think it will do the job.
I would probably get some cadet processors and crosfader pcb/panels instead of the passage to cut cost and you can place them around your system better. A cadet scaler or two is not a bad idea for putting audio eurorack gear into the video path but a panel of passive jacks/10k linear pots would work too and in some ways give more control once you get the hang of them.
Any signal in the video synth goes into the mapper and you get crazy "toasting" effects like solarization. Think of stuff you do with the videonics colorizer and make it better(cleaner) with more control.
The vco's give you shapes on one level and modulation sources on another and both at the same time if you want. The prismatic rays are particularly good at making shapes to my taste over the original vwg's but they still have lots of uses too.
I recommended two prismatic rays because I was told the more oscillators the better and after I got several I tend to agree. The prismatic rays can also be used like a keyer in awesome ways.
I think the cadets are the way to go.
Visual Cortex: Basic all in one unit, mixer, keyer, decoder, encoder, ramps, sync generator, etc: Get video in and out and more.
Audio Translator: direct input and/or internal mic external audio visualizer. 5 fixed band pass filters to extract the different frequencies of an audio signal with 3 setting fixed envelopes for fades and stuff
Color TBC: video input device that will take any signal and put it into the lzx system with no need to sync. This may be more of an optional module for you. The visual cortex will sync to an external device but if you want it to be the master sync source the device you input will need to have gen lock abilities. Also, if you are into internal feedback, which I have been heavily experimenting with of late, you will want this
Passage: utility mixer/attenuator type module. This is also optional but you may want to get some cadet crossfaders and or processors to replace it. This will let you take signals, particularly modulation sources and mix them together in a more controlled way than an audio mixer would.
Mapper: crazy color warp man. can do really strange things with colorizing. I have two.
prismatic Ray x2: awesome shaper all round good module, get at least one, but you will want more.
That is a few $100 or your budget but that set up will be really nice and is all available less the vc though the visual cortex restocks are set for November I think
Cadet modules are super. Nice to have. Do lots. If you are handy with the solder, you can make these from the schems Lars provides on the site. I would also recommend building a few each of the differentiators and function generators.
