One of the classics, the Two Voice Pro Synthesizer brings analog back in to the spotlight. Many of the original features have been updated, including:
- Mini-Sequencer is enhanced - you still generate a sequence with the knobs ( up to 16 positions ) but you can store sequences from the knobs into flash memory
- Two sequences can be played simultaneously (or play one sequence while also playing on the keyboard, like the old one)
- After sequences are stored in flash memory, you can edit them to add 2-way, 3-way or 4-way ratcheting and you can program the gate length from zero (like a rest) up to almost the complete step length
- Sequences can be chained into songs, and each step in a song can be programmed for sequence number, transpose amount and number of repeats
- Sequencer syncs to Midi Clock
- Keyboard outputs velocity and pressure
- Each module (both SEMs, Mini-Sequencer, Keyboard Control) has mini-jack patch points (56 patchpoints)
- Pitch and Modulation wheels
- Pan pots
- Headphone output
- Separate Vibrato LFO
There are three versions of the Synthesizer Expander Modules:
SEM-PRO. SEM with MIDI to CV Converter and integrated Patchpanel.
This version combines the features of the MIDI to CV version (see below) with a 21-jack patchpanel and is personally autographed by me.
- Select MIDI channel, controller number and bend range
- Select note assignment modes: latest, high note and low note priorities
- Select note re-trigger, filter track, LFO reset
- A second independent control bus allows velocity, controller data, or channel pressure to modulate either or both VCOs, the filter and the VCA
- Transpose function allows different keyboard controllers to utilize the complete MIDI note range
- Analog portamento
- Input preamp gain control - allows an external audio input to be processed thru the SEM
- High precision A-440 Hz tune signal
- Control voltages and gate are bought out to rear panel connectors so MIDI to CV function can be used with other CV/Gate gear.
SEM with Patchpanel.
All internal SEM connections are brought out to 3.5mm minijacks - all 33 of them. The basic connections are a one-volt-per-octave VCO control voltage and a standard 0 to +5 volt gate signal. On this version of the SEM, there is no MIDI input.
SEM with MIDI to CV Converter.
This version includes a high precision MIDI to CV Converter that has been specifically designed to allow MIDI to control the SEM, and has additional features that make use of the SEM's external inputs.