bastl-instruments/buddy
Buddy
Four-channel Eurorack stereo mixer/preamp optimized for hybrid setups. Channels A/B boost Eurorack sources by ×2/+6dB (DC-coupled); Channels C/D are line-level preamps boosting up to ×10/+20dB (AC-coupled) with stereo TRS inputs for desktop gear. Soft Zener clipping on mixdown outputs and chainable via back jumpers.1048
Capabilities 4
- Mixermixer
- Sums up to four stereo (or mono) channels into a stereo mixdown output; supports chaining multiple units via back jumpers.1048
- Preamppreamp
- Channels C and D provide up to ×10/+20dB gain via NE5532 op-amps for line-level desktop sources via stereo TRS inputs.1048
- Saturation / Soft Clippingsaturation
- Soft Zener clipping at 10 Vpp on the mixdown stages provides smooth overdrive character.1048
- Stereo Mixerstereo-mixer
- 1048
Jacks 8 (6 in / 2 out)
| Name | Signal | Voltage | Description |
|---|---|---|---|
| Inputs (6) | |||
| CH A Left In | audio | — | Left audio input for Channel A; DC-coupled, normalized to the right input when no right jack is inserted.1048 |
| CH A Right In | audio | — | Right audio input for Channel A; DC-coupled, receives normalized copy of left input when unpatched.1048 |
| CH B Left In | audio | — | Left audio input for Channel B; DC-coupled, normalized to the right input when no right jack is inserted.1048 |
| CH B Right In | audio | — | Right audio input for Channel B; DC-coupled, receives normalized copy of left input when unpatched.1048 |
| CH C In | audio | — | Stereo TRS (or 2× mono TS) input for Channel C; AC-coupled line-level preamp input for desktop gear, gain ×10/+20dB. Solder jumpers allow conversion to DC-coupled or left-normalized mono.1048 |
| CH D In | audio | — | Stereo TRS (or 2× mono TS) input for Channel D; AC-coupled line-level preamp input for desktop gear, gain ×10/+20dB. Solder jumpers allow conversion to DC-coupled or left-normalized mono.1048 |
| Outputs (2) | |||
| Left Out | audio | — | Stereo mixdown left output with soft Zener clipping at 10 Vpp; when unpatched, signal is sent to the chain output jumpers.1048 |
| Right Out | audio | — | Stereo mixdown right output with soft Zener clipping at 10 Vpp; when unpatched, signal is sent to the chain output jumpers.1048 |
Parameters 5
| Name | Type | Range | Behavior |
|---|---|---|---|
| CH C DC Coupling Jumper | jumper | — | Solder jumpers on Channel C that convert the input coupling between AC and DC; closing the jumpers enables AC (line-level) coupling.1048 |
| CH C Normalization Jumper | jumper | — | Solder jumpers that change Channel C's normalization scheme to match Channels A/B (left normalized to right) by cutting C_ST_NORM and closing C_R_NORM.1048 |
| CH D DC Coupling Jumper | jumper | — | Solder jumpers on Channel D that convert the input coupling between AC and DC; closing the jumpers enables AC coupling.1048 |
| CH D Normalization Jumper | jumper | — | Solder jumpers that change Channel D's normalization scheme to match Channels A/B by cutting D_ST_NORM and closing D_R_NORM.1048 |
| Mixdown Attenuator | knob | — | Attenuates the stereo mixdown output level, allowing the signal to be lowered for line-level devices downstream.1048 |
Firmware history 0 versions
No firmware history recorded.
References 2
- [1048]
-
[1049]
Bastl Instruments Buddy product pageproduct_page● verified 2026-05-30