2-XM Polyphonic Controller

Behringer 2-XM Polyphonic Controller

This was the first iteration of the four voice controller for the Behringer 2-XM. It has now been superceded byt the Eurorack version which supports 10V outputs. 

 

The 2-XM is based on the Oberheim SEM which was the synth module that was in the famous FVS (Four Voice Synthesiser) from 1978. I was lucky enough have one of these (courtesy of the record company!) and used it for live and recording until the mid 80s when it died! I still have one of the modules but the rest is long gone. I had given up all hope of ever replacing it until Behringer announced 2-XM which is a faithful but smaller recreation of the modern SEM (2000s). Each 2-XM is actually 2 SEMS  - can you see why it's called the 2-XM ;)  so if you have 2 units and a controller you would have the equivalent of the mighty FVS.

Here is the finished prototype....

FVC connected to 2 x 2-XMs for a four voice system

Short demo of the FVC features

 2-XM Controller Features

• Polyphonic control of 2 units for emulation of the FVS
• All keyboard modes from original FVS except REASSIGN
• 2,3 or 4 voice operation
• Continuous or Reset poly mode
• Split
• Split Mode 1 -3 or 3 - 1
• Unison
• Freeze
• 2 x ADSR envelopes
• Faux Vibrato LFO
• Modulation depth control of VCF
• Master VCF offset control
• LEDS activity for each voice
• Adjustable Pitch Bend and Split Point
• 32 memories - MIDI Program number received
• Envelopes, Split, Pitch Bend range and LFO speed all saved
• MIDI IN and MIDI OUT x 2 buffered
• Uses 2 x  Pro Micros 
• CCs can be used to change additional parameters

CC Numbers 

16 - Pitch Bend On/Off voice 1

17 - Pitch Bend On/Off voice 2

18 - Pitch Bend On/Off voice 3

19 - Pitch Bend On/Off voice 4 

35 - Filter Track

37 - Save preset

40 - LFO Rate

48 - No of voices

 

Options

 I do not supply this unit but you I can provide a stripped down eurorack version. Check the FVC1 page for info.