Open Music Labs Ei303 x0x heart
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- with Drone mode switch and alternate panel design.
Selling a beautifully built and fully calibrated x0x‑Heart with the EI‑303 interface by jean.pri, with few tweaks — a complete, performance‑ready TB‑303 voice in Eurorack format.
EI‑303 adds:
- 303‑style control panel
- controls and CV for Saw/Square mix,
- Drive, Filter FM controls
- Invertible Accent/Slide knobs with led illumination,
and more intuitive, ergonomic layout for live tweaking.
- calibration controls - easily accessible.
Condition: fully working, clean build, accurately calibrated across 1–5 V, power cable + screws.
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| Listed | 6 hours ago |
|---|---|
| Condition | Excellent (Used) Excellent items are almost entirely free from blemishes and other visual defects and have been played or used with the utmost care.Learn more |
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| Synth Module Function |
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| Analog / Digital |
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| Horizontal Pitch |
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