DIY and Pre-Assembled Eurorack Products


Created by potrace 1.16, written by Peter Selinger 2001-2019

LjunggrenAudio RYO Ampmix:
a 4-channel amplifying mixer in 8hp .

- 4-channel amplifying high precision mixer/attenuator.
- Works as 4 channel mixer, 1 attenuator + 3 channel mixer, 2 attenuators + 2 channel mixer or 4 attenuators.
- 2.0x gain (6dB) per channel, channels can be chained for greater gain, any combination of channels in any order. (16x gain, 24dB)
- 5.0V offset per channel.
- All analogue circuitry.
- Hi-fidelity signal chain with low noise opamps.
- High impedance inputs and buffered outputs.
- Slim 8HP footprint.
- Compact 35mm Depth (with power cable attached).
- Low power draw: 22mA+12V / 22mA -12V /no +5V required.
- Works for audio as well as CV.
- Fast responding CV inputs allow for complex modulation and modulating with audio signals.
- Sum mix output.
- Ch1 output normalized to ch2 input for patching convenience.


RYO Ampmix

Ampmix User Manual

Ampmix Quickstart

Look in the User Manual for a selection of inspiring patch ideas and tips!

Ampmix assembly guide

Ampmix BOM

learn more

Ampmix Schematic

Ampmix Datasheet