Saturday, January 13, 2018

G-Storm Jupiter-6 VCF vs. Jove vs. SE 8106 modules

I get asked quite a bit what makes the Jupiter-6 VCF different from modules like the Jove by System-80, and the the Studio Electronics 8106. The Jove and 8106 circuits are a similar topology using readily available OTA chips, their PCBs are mass-produced, their boards are probably automated assembly for SMT parts. Mine uses the expensive/rare/original Roland OTAs, my PCBs are currently copper etched and tinned by hand, and fully assembled by hand as well. I'd love to build a Jove for myself, alas - no time (and PCBs are currently sold out). The demos of the Jove sound nice. I haven't checked out any demos of the 8106 yet, but everything SE makes is fantastic. I also suppose this is as good a time to announce my Jupiter-6 VCF is also undergoing a front panel re-design and will be very similar to my Delta VCF version 2.

Thursday, January 11, 2018

My Delta VCF Version 2 is Here!

My first video of 2018, I know it's been a while. I have been busy working on this little beauty! Today I introduce my Delta VCF version #2. You will remember the Delta VCF is my fully analog filter adaptation of the Korg Delta/Poly-61 synthesizers with the addition of a 2-Pole mode. My version #2 is exactly the same sound, functionality, and circuit as the version #1. It has a revised panel layout that makes the trimmers available from the front, is 12HP, and is now skiff-friendly. While we're at it, I audition some sound examples - starting with some PWM bass sweeps. I have trimmed the resonance for the module I am showing today so that it could self-resonate, I modulate that with an LFO. Audio recorded direct to Tascam DR-05, no effects or EQ added.

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