Compatibility

 

The LFO expander was specifically designed for use with the Yamaha CS80, minimoog and ARP2600. However, the LFO expander can be used with almost every synthesizer equipped with cv-in and/or cv-out jacks. Many mono-synths from the 70's and 80's have these jacks.

Just feed the keyboard-cv (cv-out, key-out) from the synth to the LFO-expander and feed the LFO-expander's main output back to the cv-in of your synth to add vibrato or bends to the notes you play on the keyboard. Have a look at the connection diagrams in the user manual to see how it works.

Some synths don't have oscillator inputs but do have filter- or volume inputs. In that case, functionality is limited to filter or volume control of coarse.

I tested the LFO expander on several synthesizers. In the following list you can see what synthesizers are potentially compatible with the LFO expander and what synthesizers were actually tested by me.

  PITCH VCF VCA   tested remarks
ARP
           
2600
yes
yes
yes
 
yes
 
Axxe
yes
yes
      VCF controlled by Axxes' "pedal" input
Odyssey
yes
yes
   
yes
VCF controlled by Odyssey's "pedal" input
Solus
yes
yes
      VCF controlled by Solus' "pedal" input
             
Crumar
           
Spirit
yes
yes
       
Trilogy
 
yes
       
             
Korg
           
MS20
yes
yes
   
yes
 
             
Moog
           
Memorymoog
yes
yes
yes
 
yes
via pedal-in, destination can be selected on memorymoog
Minimoog
yes
yes
yes
 
yes
 
Prodigy
yes
yes
       
Rogue
yes
        special Y-cable required, see user manual
Source
yes
        special Y-cable required, see user manual
             
Oberheim
           
OB-8
 
yes
yes
 
yes
when connected to arpeggiator input, speed of arpeggiator can be
            controlled by foot-pedal (select pulsewave on expander)
OB-X
yes
yes
yes
 
yes
passive pedal connected directly to vibrato in: pedal controls amount
            of OB-X's internal LFO. LFO-expander connected to vibrato-in:
            LFO-expander takes over control (speed variable lfo's + bends)
Two voice
yes
     
yes
only one SEM controlled by jacks
             
Roland
           
Jupiter 4
 
yes
yes
 
yes
 
Jupiter 8
 
yes
yes
 
yes
 
Promars
yes
yes
yes
    via cv-in or bend-in
SH-1
yes
         
SH-2
yes
         
SH-3
?
yes
      not sure what vco-cont input does
SH-5
yes
yes
       
SH-7
yes
yes
      connect SH-7's gate-out to gate-in
SH09
yes
         
SH101
yes
     
yes
 
System 100 101
yes
yes
   
yes
 
             
SCI
           
Pro One
yes
yes
   
yes
 
P10
       
yes

P10 pedal inputs only react on positive voltage
P10 key-in is quantised, so not suitable for LFO and pitchbends

P5
          not tested, but I expect same behaviour as P10
             
Yamaha
           
CS10
yes
         
CS30
yes
     
yes
use key-volt-in and out jacks
CS50
yes
yes
yes
 
yes
slow lfo's and slow sweeps are filtered
CS60
yes
yes
yes
    slow lfo's and slow sweeps are filtered
CS80
yes
yes
yes
 
yes
input voltage inverted by CS80