Sega Megadrive sound chip based generative drum machineDesigned by Spherical Sound Society in Spain
OPERA ROTAS is a mutant, generative drum machine. It's built around a Yamaha OPL2 FM audio chip, a close cousin of the one used in the Sega Genesis / Megadrive consoles. At the core, it has a real Ya…Read More…
At the core, it has a real Yamaha OPL2 audio chip and live sounds bonkers, brutal. It's all body and weight while being crystal clear and punchy. The videos don't do aural justice but it serves to get an idea.
The original firmware is the generative drum machine of the demo, but there´s another alternative firmware that turns it into a 9 voice polyphonic synth. You can get both. In fact I recommend it, as it as having 2 machines in one.
The project will go open source at some point while I retain the hardware fabrication rights. If you get one PCB or kit you can ask for the source code to tweak it if you will.
It comes in 4 flavours:
All above options needs a OPL2 board to finish the build that offer too.
The PCB comes with all components presoldered except that ones that you have to source (or comes included in the full kit)
-16 switch buttons -16 pots (vertical b10k. Any linear vertical pot will be ok) -OLED Screen -2x20 pin female sockets (for the bluepill microcontroller) -The programmed bluepill itself -An OPL2 Board
Manual, schematics and interactive BOM available in the github https://github.com/spherical-sound-society/OPERA_ROTAS
You can watch additional videos and gather info in this thread: https://www.muffwiggler.com/forum/viewtopic.php?f=17&t=233199t
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|Shipping Rate||Tracked||Ships From||First Item||Additional Items|
I normally ships 2 days a week.
I charge a 20% on returns plus the shipping costs.
If you have to return an item, please use the same box that I sent you and declare 20€ or 20USD or similar price in the customs declaration, as if you send it back in a different box and declaring the real costs, the Spanish customs would charge me an additional 21% to receive the packet that I should finally charge it to you.
Justin | Aug. 31, 2021
Mark | Sept. 21, 2020
Antonio | Sept. 15, 2020
Romain | Aug. 14, 2020
Torrevieja, Valencian Community, Spain
Ships from Spain.
48 Reviews | 612 Orders
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