In 1970 ARP planned to make a slave module for the 2500 1027 sequencer but it never made it into production or prototype stage.

The AMSynths AM1028 fills in a piece of history by recreating the Slave Module, which we call Sequential Volts. It is an easy to understand and use module; just plug it into the Behringer 1027 module with the included 12-way cable and enjoy another column of step CV's!

The AM1028 can be placed next to the Behringer 1027 or close to the module it is controlling, reducing patch cable lengths. Multiple AM1028 modules can be connected to one long ribbon cable, thanks to the CMOS buffering chips and diode protection in the module. or the AMSEQBUS pcb can be used to connect mutiple modules.

High quality Alpha potentiometers and Rogan knobs have been used to ensure control voltages can be easily set and adjusted. The 2V output is designed to drive VCO's and increases the resolution of the control pots.