Metric Halo MH EdgeCard - SPDIF/MIDI — an EdgeBus expansion card adding stereo SPDIF I/O on RCA and 5-pin MIDI In/Out ports to any 3d-based unit.
Every 3d-based unit has a built-in EdgeBus slot, and this card fills it with one module combining consumer-grade digital I/O and classic MIDI, avoiding the need to fit two separate expansion cards. Installation is tool-free — the card slides directly into the slot, and the hardware auto-detects the installed module type.
Consumer Digital Input Without a Separate Converter
Integrating synths, older CD players, home consoles, or other gear fitted only with SPDIF RCA usually calls for an outboard format converter, adding another link in the chain and a potential jitter source. The SPDIF/MIDI card brings an RCA port directly into the 3d unit, supporting stereo operation from 44.1 to 192 kHz on the same clock as the rest of the system, so synchronization happens inside the unit without an external word clock.MIDI Built Into the Audio Path, No Extra Interface
Sessions combining MIDI-controlled gear — controllers, sound modules, hardware automation — typically need a separate MIDI interface running alongside the audio connection, adding cabling complexity to the rack. The MIDI port on this EdgeCard shows up in the system as a second MIDI port in CoreMIDI/AMS once the 3d unit connects over USB, alongside the internal ports on the ULN-8 or LIO-8 that occupy the first port. Everything runs off a single USB connection to the computer, with no extra cable or separate MIDI interface power supply needed.KEY FEATURES
- SPDIF input and output on RCA connectors
- Standard 5-pin MIDI In and MIDI Out ports
- Tool-free installation into the EdgeBus slot
- Automatic card-type detection by the 3d hardware
- MIDI appears as a distinct CoreMIDI/AMS port over USB
TECHNICAL SPECIFICATIONS
- Model number: 000-50040
- SPDIF channels: 2 in / 2 out (stereo)
- SPDIF connector: RCA
- SPDIF resolution: 44.1-192 kHz
- MIDI: 1x MIDI In, 1x MIDI Out, 5-pin DIN connector
- Compatibility: all 3d Core-based units (ULN-8, LIO-8)
- Upgrade type: field-swappable EdgeBus card


