ELECTRO-HARMONIX 8 STEP PROGRAM COMPATIBILITY LIST
Manufacturer Compatible Pedals
BossAll GT multi-effects
BossDD-7 Delay
BossAW-3 Dynamic Wah
BossPS-5 Super Shifter
BossSL-20 Slicer (May take several tries. DL or depth at 3/6.)
BossRC-50
BossRC-300
DLSRotosim
DLSVersa Vibe
EHXDeluxe Memory Boy
EHXDeluxe Memory Man w/Tap Tempo 1100
EHXDeluxe Memory Man w/Tap Tempo 550
EHXEnigma
EHXHoly Stain
EHXMemory Boy
EHXRavish
EHXRiddle
EHXStereo Polyphase
EHXTube EQ
EHXWorm
EventidePitchFactor (Must set 8-Step depth to 5)
FractalAxe-FX
FrostwaveBlue Ringer
Iron EtherFrantabit
KemperProfiling Amp
Line 6M9 Modeler (Must adjust depth to work with unit)
MalekkoPlus Ultra 213
MoogAnalog Delay
MoogLowpass Filter
MoogRing Mod
Moog12-Stage Modulation
Moog12-Stage Phaser
MoogFreqbox
MoogMidi Murf
MoogCluster Flux
MoogGuitar
PigtronixPhilosopher King
PigtronixEnvelope Phaser (Works with Sweep input only, not Speed)
Pigtronix Tremvelope (Works with Vol/Pan input only, not Speed)
PigtronixEcholution
PigtronixMothership
RolandFC-300
RolandVG-88
RolandVG-99
RolandGR-55
StrymonAll Effects
SynthmongerPulsmonger MK1
TC ElectronicFlashback X4
Way HugeRing Worm
WMD Geiger Counter
ZoomG3


ELECTRO-HARMONIX 8 STEP PROGRAM NON-COMPATIBILITY LIST
Manufacturer Non-Compatible Pedals
BossPS-6 Harmonist
BossPRE-20 Space Echo
KorgAll Effects
Line 6DL-4
NovationAll Effects
PigtronixKeymaster
VoxDelay Lab
YamahaAll Effects

NOTE: Compatible expression inputs must accept a voltage source as the controlling signal. The expression input should also allow for an expression pedal TRS plug with the following connections: Sleeve = Heel, Ring = Toe, Tip = Wiper. The expression voltage present on the Ring of the TRS plug sets the maximum range of the controlling signal; this Ring voltage must be between 2VDC and 9VDC.

Please note that this list only includes pedals that we have had the opportunity to test and is not all inclusive. Compatibility is not limited to the models on this list and we will update it as new information becomes available.