 3-Channel Buffered Output Selector
The Trident is a 3-channel buffered output selector with full MIDI control. Send your signal to up to three independent outputs and control which are active via MIDI CC messages.
- 3 Independent Buffered Outputs – Latching relays give you clean, click-free switching with no power draw to hold state.
- MIDI Control – Mute, unmute, toggle, or solo any combination of outputs via standard MIDI CC messages. 3.5mm TRS Type A MIDI Input & MIDI Output
- Status LEDs – Colour-coded per-output indicators show mute/unmute state at a glance, plus a status LED for MIDI activity.
- Configurable MIDI Channel – Set the listen channel (1-16) via MIDI CC. Saved to memory and persists across power cycles.
- Configurable Boot State – Choose which outputs start unmuted when you power up.
- MIDI Thru – Pass MIDI messages downstream to other devices in your chain.
LED Colour Guide
| LED | Colour | Meaning |
|---|---|---|
| Status | White | Powered and ready |
| Status | Pink flash | MIDI message received (on your channel) |
| Status | Yellow flash | MIDI message received (other channel) |
| Output 1 | Green | Unmuted (active) |
| Output 2 | Blue | Unmuted (active) |
| Output 3 | Purple | Unmuted (active) |
| Output 1 / 2 / 3 | Red | Muted |
MIDI CC Commands
All commands are sent on the Trident's configured MIDI channel (default: Channel 1).
Output Control (CC 1-6)
| CC Number | Target Outputs | Description |
|---|---|---|
| CC 1 | Output 1 | Control Output 1 only |
| CC 2 | Output 2 | Control Output 2 only |
| CC 3 | Output 3 | Control Output 3 only |
| CC 4 | Output 1 + Output 3 | Control Outputs 1 and 3 together |
| CC 5 | Output 2 + Output 3 | Control Outputs 2 and 3 together |
| CC 6 | All Outputs | Control all three outputs together |
CC Values (Actions)
| CC Value | Action | Description |
|---|---|---|
| 0 | Mute | Mute the target output(s). Other outputs are unaffected. |
| 1 | Toggle | Flip the state of the target output(s). Other outputs are unaffected. |
| 2 | Unmute | Unmute the target output(s). Other outputs are unaffected. |
| 3 | Solo | Mute all outputs, then unmute only the target output(s). |
Quick Reference Examples
| Send This | What Happens |
|---|---|
| CC 1, Value 2 | Unmute Output 1 (Outputs 2 & 3 unchanged) |
| CC 6, Value 0 | Mute all outputs |
| CC 4, Value 1 | Toggle Outputs 1 & 3 (Output 2 unchanged) |
| CC 2, Value 3 | Solo Output 2 (mutes 1 & 3, unmutes 2) |
| CC 5, Value 3 | Solo Outputs 2 & 3 (mutes 1, unmutes 2 & 3) |
| CC 6, Value 2 | Unmute all outputs |
Configuration Commands
| CC Number | Value | Function |
|---|---|---|
| CC 120 | 1-16 | Set MIDI Channel. Changes the channel the Trident listens on. Saved to memory. Device reboots to apply. |
| CC 121 | 1-6 | Set Boot Mode. Determines which output(s) start unmuted on power-up. See table below. Saved to memory. |
Boot Modes (CC 121 Values)
| Value | Startup State |
|---|---|
| 1 | Output 1 unmuted, Outputs 2 & 3 muted |
| 2 | Output 2 unmuted, Outputs 1 & 3 muted |
| 3 | Output 3 unmuted, Outputs 1 & 2 muted |
| 4 | Outputs 1 & 3 unmuted, Output 2 muted |
| 5 | Outputs 2 & 3 unmuted, Output 1 muted |
| 6 | All outputs unmuted |
Default boot mode (no CC 121 sent): all outputs muted.
