boredbrain/xcelon
Xcelon
An all-analog six-channel stereo audio mixer for Eurorack with CV control, dual mix busses, FX sends/returns, and expansion ports.1120
Capabilities 3
- Stereo Mixerstereo-mixer
- Six stereo channels each with gain, balance, mute, FX sends, and fader; two mix output busses (A/B); two FX send/return pairs.1120
- Voltage-Controlled Amplifiervca
- A jumper-selectable VCA mode lets the VOL CV input replace the fader bias voltage, turning each channel's volume circuit into a dedicated VCA.1120
- Voltage-Controlled Crossfadercrossfader
- Each channel's XFADE button enables dual-mono crossfade mode, with BAL acting as a crossfader between the two mono inputs.1120
Jacks 50 (42 in / 8 out)
| Name | Signal | Voltage | Description |
|---|---|---|---|
| Inputs (42) | |||
| CH1 BAL CV | cv | -5V to 5V | 1120 |
| CH1 FX1 CV | cv | 0V to 5V | 1120 |
| CH1 FX2 CV | cv | 0V to 5V | 1120 |
| CH1 INPUT L | audio | — | Left stereo input for channel 1; normalled to right jack when only one mono source is connected.1120 |
| CH1 INPUT R | audio | — | Right stereo input for channel 1; receives normalled copy of left jack when only one source is patched.1120 |
| CH1 VOL CV | cv | 0V to 5V | 1120 |
| CH2 BAL CV | cv | -5V to 5V | 1120 |
| CH2 FX1 CV | cv | 0V to 5V | 1120 |
| CH2 FX2 CV | cv | 0V to 5V | 1120 |
| CH2 INPUT L | audio | — | 1120 |
| CH2 INPUT R | audio | — | 1120 |
| CH2 VOL CV | cv | 0V to 5V | 1120 |
| CH3 BAL CV | cv | -5V to 5V | 1120 |
| CH3 FX1 CV | cv | 0V to 5V | 1120 |
| CH3 FX2 CV | cv | 0V to 5V | 1120 |
| CH3 INPUT L | audio | — | 1120 |
| CH3 INPUT R | audio | — | 1120 |
| CH3 VOL CV | cv | 0V to 5V | 1120 |
| CH4 BAL CV | cv | -5V to 5V | 1120 |
| CH4 FX1 CV | cv | 0V to 5V | 1120 |
| CH4 FX2 CV | cv | 0V to 5V | 1120 |
| CH4 INPUT L | audio | — | 1120 |
| CH4 INPUT R | audio | — | 1120 |
| CH4 VOL CV | cv | 0V to 5V | 1120 |
| CH5 BAL CV | cv | -5V to 5V | 1120 |
| CH5 FX1 CV | cv | 0V to 5V | 1120 |
| CH5 FX2 CV | cv | 0V to 5V | 1120 |
| CH5 INPUT L | audio | — | 1120 |
| CH5 INPUT R | audio | — | 1120 |
| CH5 VOL CV | cv | 0V to 5V | 1120 |
| CH6 BAL CV | cv | -5V to 5V | 1120 |
| CH6 FX1 CV | cv | 0V to 5V | 1120 |
| CH6 FX2 CV | cv | 0V to 5V | 1120 |
| CH6 INPUT L | audio | — | 1120 |
| CH6 INPUT R | audio | — | 1120 |
| CH6 VOL CV | cv | 0V to 5V | 1120 |
| FX RTN1 L | audio | — | Left stereo input of FX return 1; can also be used as an extra stereo input.1120 |
| FX RTN1 R | audio | — | 1120 |
| FX RTN2 L | audio | — | Left stereo input of FX return 2; can also be used as an extra stereo input.1120 |
| FX RTN2 R | audio | — | 1120 |
| RTN1 CV | cv | 0V to 5V | 1120 |
| RTN2 CV | cv | 0V to 5V | 1120 |
| Outputs (8) | |||
| FX SND1 L | audio | — | Left output of FX send bus 1; sums right into left if only the left jack is used.1120 |
| FX SND1 R | audio | — | 1120 |
| FX SND2 L | audio | — | 1120 |
| FX SND2 R | audio | — | 1120 |
| MIX OUT A L | audio | — | 1120 |
| MIX OUT A R | audio | — | 1120 |
| MIX OUT B L | audio | — | 1120 |
| MIX OUT B R | audio | — | 1120 |
Parameters 54
| Name | Type | Range | Behavior |
|---|---|---|---|
| CH1 AB | switch | — | Three-position switch routing the channel to mix bus A only, B only, or both A and B simultaneously.1120 |
| CH1 BAL | knob | — | Adjusts the stereo balance between left and right signals following a -4.5 dB pan law curve; in XFADE mode acts as a mono crossfader between the two inputs.1120 |
| CH1 FX1 | knob | — | Sets the send level to FX bus 1; post-fader by default, configurable to pre-fader via jumper.1120 |
| CH1 FX2 | knob | — | Sets the send level to FX bus 2; post-fader.1120 |
| CH1 GAIN | knob | ≤15dB | Boosts the channel input signal up to +15 dB; a PK LED illuminates just before clipping. Useful for bringing line-level sources up to Eurorack levels.1120 |
| CH1 MUTE | button | — | Electronically latching VCA-based mute with fast slew; silences the channel up to -93 dB without clicks or pops.1120 |
| CH1 VOL | fader | — | Controls the channel volume; fader position biases the VOL CV input in MOD mode, or attenuates the CV in VCA mode.1120 |
| CH1 XFADE | button | — | Puts the channel into dual-mono crossfade mode; both inputs are centered and BAL becomes a level crossfader between them.1120 |
| CH2 AB | switch | — | Three-position switch routing the channel to mix bus A only, B only, or both A and B simultaneously.1120 |
| CH2 BAL | knob | — | Adjusts the stereo balance following a -4.5 dB pan law curve; in XFADE mode acts as a mono crossfader between the two inputs.1120 |
| CH2 FX1 | knob | — | Sets the send level to FX bus 1; post-fader by default, configurable to pre-fader via jumper.1120 |
| CH2 FX2 | knob | — | Sets the send level to FX bus 2; post-fader.1120 |
| CH2 GAIN | knob | ≤15dB | Boosts the channel input signal up to +15 dB; a PK LED illuminates just before clipping.1120 |
| CH2 MUTE | button | — | Electronically latching VCA-based mute with fast slew; silences the channel up to -93 dB without clicks or pops.1120 |
| CH2 VOL | fader | — | Controls the channel volume; fader position biases the VOL CV input in MOD mode, or attenuates the CV in VCA mode.1120 |
| CH2 XFADE | button | — | Puts the channel into dual-mono crossfade mode; both inputs are centered and BAL becomes a level crossfader between them.1120 |
| CH3 AB | switch | — | Three-position switch routing the channel to mix bus A only, B only, or both A and B simultaneously.1120 |
| CH3 BAL | knob | — | Adjusts the stereo balance following a -4.5 dB pan law curve; in XFADE mode acts as a mono crossfader between the two inputs.1120 |
| CH3 FX1 | knob | — | Sets the send level to FX bus 1; post-fader by default, configurable to pre-fader via jumper.1120 |
| CH3 FX2 | knob | — | Sets the send level to FX bus 2; post-fader.1120 |
| CH3 GAIN | knob | ≤15dB | Boosts the channel input signal up to +15 dB; a PK LED illuminates just before clipping.1120 |
| CH3 MUTE | button | — | Electronically latching VCA-based mute with fast slew; silences the channel up to -93 dB without clicks or pops.1120 |
| CH3 VOL | fader | — | Controls the channel volume; fader position biases the VOL CV input in MOD mode, or attenuates the CV in VCA mode.1120 |
| CH3 XFADE | button | — | Puts the channel into dual-mono crossfade mode; both inputs are centered and BAL becomes a level crossfader between them.1120 |
| CH4 AB | switch | — | Three-position switch routing the channel to mix bus A only, B only, or both A and B simultaneously.1120 |
| CH4 BAL | knob | — | Adjusts the stereo balance following a -4.5 dB pan law curve; in XFADE mode acts as a mono crossfader between the two inputs.1120 |
| CH4 FX1 | knob | — | Sets the send level to FX bus 1; post-fader by default, configurable to pre-fader via jumper.1120 |
| CH4 FX2 | knob | — | Sets the send level to FX bus 2; post-fader.1120 |
| CH4 GAIN | knob | ≤15dB | Boosts the channel input signal up to +15 dB; a PK LED illuminates just before clipping.1120 |
| CH4 MUTE | button | — | Electronically latching VCA-based mute with fast slew; silences the channel up to -93 dB without clicks or pops.1120 |
| CH4 VOL | fader | — | Controls the channel volume; fader position biases the VOL CV input in MOD mode, or attenuates the CV in VCA mode.1120 |
| CH4 XFADE | button | — | Puts the channel into dual-mono crossfade mode; both inputs are centered and BAL becomes a level crossfader between them.1120 |
| CH5 AB | switch | — | Three-position switch routing the channel to mix bus A only, B only, or both A and B simultaneously.1120 |
| CH5 BAL | knob | — | Adjusts the stereo balance following a -4.5 dB pan law curve; in XFADE mode acts as a mono crossfader between the two inputs.1120 |
| CH5 FX1 | knob | — | Sets the send level to FX bus 1; post-fader by default, configurable to pre-fader via jumper.1120 |
| CH5 FX2 | knob | — | Sets the send level to FX bus 2; post-fader.1120 |
| CH5 GAIN | knob | ≤15dB | Boosts the channel input signal up to +15 dB; a PK LED illuminates just before clipping.1120 |
| CH5 MUTE | button | — | Electronically latching VCA-based mute with fast slew; silences the channel up to -93 dB without clicks or pops.1120 |
| CH5 VOL | fader | — | Controls the channel volume; fader position biases the VOL CV input in MOD mode, or attenuates the CV in VCA mode.1120 |
| CH5 XFADE | button | — | Puts the channel into dual-mono crossfade mode; both inputs are centered and BAL becomes a level crossfader between them.1120 |
| CH6 AB | switch | — | Three-position switch routing the channel to mix bus A only, B only, or both A and B simultaneously.1120 |
| CH6 BAL | knob | — | Adjusts the stereo balance following a -4.5 dB pan law curve; in XFADE mode acts as a mono crossfader between the two inputs.1120 |
| CH6 FX1 | knob | — | Sets the send level to FX bus 1; post-fader by default, configurable to pre-fader via jumper.1120 |
| CH6 FX2 | knob | — | Sets the send level to FX bus 2; post-fader.1120 |
| CH6 GAIN | knob | ≤15dB | Boosts the channel input signal up to +15 dB; a PK LED illuminates just before clipping.1120 |
| CH6 MUTE | button | — | Electronically latching VCA-based mute with fast slew; silences the channel up to -93 dB without clicks or pops.1120 |
| CH6 VOL | fader | — | Controls the channel volume; fader position biases the VOL CV input in MOD mode, or attenuates the CV in VCA mode.1120 |
| CH6 XFADE | button | — | Puts the channel into dual-mono crossfade mode; both inputs are centered and BAL becomes a level crossfader between them.1120 |
| FX SND 1 Jumper | jumper | — | POST: FX send 1 is post-fader. PRE: FX send 1 is pre-fader, allowing more than 50% wet mix.1120 |
| RTN AB | switch | — | Shared switch routing both FX returns to mix bus A, B, or both simultaneously.1120 |
| RTN1 Level | knob | — | Sets the input level of FX return 1; biases the RTN1 CV input.1120 |
| RTN2 Level | knob | — | Sets the input level of FX return 2; biases the RTN2 CV input.1120 |
| VOL CV Jumper | jumper | — | MOD: fader position is added to the CV input as a bias. VCA: the CV fully controls the volume amplitude and the fader acts as an attenuator on top.1120 |
| VU METER Jumper | jumper | — | POST: VU meter reads post-fader signal. PRE: VU meter reads pre-fader signal, useful for gain-staging before fader is in the mix.1120 |
Firmware history 0 versions
No firmware history recorded.
References 1
- [1120]