The A / B / C expander adds CV, gate out, and a sequential switch, to the Discrete Map module by assigning the eight stages into three groups.
It provides CV control over threshold voltages, individual gate outputs, and a sequential switch inspired by the Buchla MARF. Expanders are chainable, so it is possible to connect more than one expander to each Discrete Map.

The A / B / C expander has a bank of switches to assign each of the eight stages into one of three groups: A, B, or C. Gates from each group are combined into the A, B, and C gate outputs. Each CV input adds to the thresholds of every stage in the corresponding group. The sequential switch bidirectionally connects the common jack with the A, B, or C jack whenever a stage in the A, B, or C group is activated.
Among other things, the A / B / C expander is useful for
* Percussive sequencing * Random and controlled adjustments to rhythms * Phase and pulse width modulation * Temporal mixing * Performatively changed sequencing with a sequential switch

Product Specs

• Item Number: 37812
• Make: New Systems Instruments
• Model: Discrete Map A / B / C Expander
• Condition: Brand New
• Finish: Black
• Categories: keyboards-and-synths ⇒ eurorack
• Function: Expander Sequencer Switch
• Made In: United States
• MPN: DMapExp
• Modular Grid: Eurorack ⓘ ＋
• Dimensions: 10 HP 33 mm deep
• Power: 35 mA +12V 35 mA -12V 0 mA 5V