Expander · 2 HP
ART Add-On
Polyphonic sequencing over Tiptop’s ART protocol, straight from a NerdSEQ track.
ART is the digital protocol several Tiptop Audio modules speak, and this puts it on the NerdSEQ’s bus. One track can drive six polyphonic notes plus everything else ART carries — so a polysynth voice becomes something you write in the tracker rather than something you patch around.
It rides on the Multi-IO Expander, using one of its I2C ports set as an output. That port can still be shared. Each add-on gives two ART outputs, and two add-ons can run in one NerdSEQ system.
- Polyphonic sequencing over the Tiptop ART protocol.
- 6 polyphonic notes per track, plus everything else ART supports.
- 2 ART outputs per add-on; up to 2 add-ons per NerdSEQ.
- Uses one I2C port on the Multi-IO, set as output and shareable.
Not a standalone product. It needs a NerdSEQ and a Multi-IO Expander.

Specifications
| Status | Available |
| Width | 2 HP, 25 mm deep |
| Front panel | Black, grey |
| Outputs | 2 ART |
| Bus | I2C, via the Multi-IO Expander |
| Maximum | 2 add-ons per NerdSEQ |
| Connection | 2 dupont cables included |
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