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All about expression pedals

Expression pedal database and how they work

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Expression pedal list

Finding the correct polarity as well as the potentiometer resistance, of an expression pedal can be difficult. But having the correct polarity and resistance can mean the difference between an effect being modulated or not. So, this list is provided to help in that area. The list contains solely expression pedals, or expression pedals with volume pedal options.

We hope our database of expression pedals is of use to you. Much care has been taken compiling it, but no responsibility is taken for its accuracy. It is suggested to contact the manufacturer of a device to verify your units specifications.

Brand/model

Number of expression jacks

Polarity

Reverse sweep option

Resistance
(ohm)

Minimum depth knob

Toe switch

Volume pedal also

Power

Tension adjustment

Footprint* (mm)
H (min – max) x W x L

Alesis

F2

1

TRS or RTS

No

 

Min and max1

No

Yes

No

No

57 x 120 x 215; 0.9Kg

AMT

EX-50

1

TRS or TS

Yes

25K

No

No

No

No

No

55x 62 x 110; 0.45Kg

Beringher

FCV-1002

1

RTS

No

50K

No

No

Yes

No

No

117 x 113 x 248; 1.2Kg

FC-600

1

RTS

No

50K

Yes

No

Yes

No

Yes

70– 130 x 112 x 298; 1.4Kg

Bespeco

 

 

 

 

 

 

 

 

 

 

VM12ARTE

1

TRS

No

100K

Yes

No

Yes

No

No

60 x86 x 198

VM18LU

1 Hardwired

TRS or RTS

Yes

20K

No

No

No

No

No

60 x86 x 198

VM13ZUM

1

RTS

No

100k

No

No

Yes

No

No

60 x86 x 198

Boss

EV-10

1

TRS

No

10K

Yes

No

No

No

No

 65 x 110 x 324; 1.0Kg

EV-30

2

TRS

 1 jack only3

10K

Yes on both

No

No

No

No

 58 – 92 x 80 x 192; 0.78Kg

FV-500H

1

TRS

No

10K

Yes

No

Yes

No

Yes

289 x 72 x 110; 1.6kg

FV500L

1

TRS

No

10K

Yes

No

Yes

No

Yes

289 x 72 x 110; 1.2kg

Crumar

MJ-EXP14

1
Hardwired

TRS

No

10k

No

No

No

No

Yes

 

db instrument amp

4E dual axis6

4

TRS

No

25k; 10k switchable

No

No

No

No

No

76.2 x 122 x 253: 1.59Kg

Brand/model

Number of expression jacks

Polarity

Reverse sweep option

Resistance
(ohms)

Minimum depth knob

Toe switch

Volume pedal also

Power

Tension adjustment

Footprint19 (mm)
H (min – max) x W x L

Digitech

DOD mini expression

1

TRS or RTS or TS

No

10k(TS)
25k (TRS;RTS)

No

No

No

No

No

61 x 76 x 127; 0.5Kg

Dunlop

DVP4 X mini

1

TRS

Yes

10K

Yes

No

Yes

No

Yes

63 x 74 x 151; 0.567kg

DVP3 (X)

1

TRS

Yes

10K

Yes

No

Yes

No

Yes

65.4 x 98 x 253.8; 1.242Kg

DVP1 (XL)

1

TRS

Yes

10K

Yes

No

Yes

No

Yes

76.2 x 114.3 x 292.1; 1.8Kg

EHX

Performance

1

TRS or RTS

Yes

10K

Yes

No

No

No

No

81.2 x 119 x 276

Performance

Dual Expression

2

TRS or RTS
independent17

Yes

Independent

10K

Yes

Independent

No

No

No

No

81.2 x 119 x 276

Next step Expression

1

TRS

Yes

100K

Yes

Yes8

No

Yes

NA

 

Fatar

VP-25

1 hardwired

TRS

 

10K

 

 

 

 

 

;0.65kg

VP-26

1 hardwired

TRS & RTS

 

10K

 

 

 

 

 

;0.65kg

VP-27

1 hardwired

RTS

 

10K

 

 

 

 

 

;0.65kg

Fractal audio

EV-1

1

TRS

No

100K

No

No

Yes

No

Yes

65.1 x 111.7 x 289.9

EV-21TRSNo100KNoNoYesNoYes66 x 81 x 190; 0.86kg

Hotone

Soul press

1

TRS

No

10K

No

No

Yes

Yes/No

 

51 x 62.5 138; 0.34kg

Jam

EXP-1

Hardwired20

TRS

No

B10K16

No

No

No

No

No

75 x 95 x 240; 0.4kg

EXP-2

Hardwired

TRS

No

500k

No

No

No

No

No

75 x 95 x 240; 0.4kg

EXP-3

Hardwired

TRS

No

B500k reverse

No

No

No

No

No

75 x 95 x 240; 0.4kg

EXP-4

hardwired

TRS

No

B100K16 reverse dual

No

No

No

No

No

75 x 95 x 240; 0.4kg

Korg

EXP-2

1

RTS

No

100K

Yes

No

Yes

No

 

58.3 - 91.5 x 87 x 200

XVP-10

1

RTS

No

50K

No

No

Yes

No

No; Spring return

69.5 x 114 x 300; 1.45Kg

XVP-20

1

RTS

No

50K

No

No

Yes

No

Yes

62 x 90 x 268; 1.3Kg

Kurzweil  

CC-1

1
hardwired7

TRS

No

10K

No

No

No

No

No

 

Lead foot

LFX-1

1
hardwired7

 

No

 

No

No

No

No

No

 

Line 6

EX-1

1

TS

No

10K

No

No

No

No

No

50 – 80 x 80 x 195

M-Audio

EX-P

1
hardwired7

TRS or RTS

No

10K

Yes

No

No

No

No

56 x 107 x 249; 0.32Kg

Brand/model

Number of expression jacks

Polarity

Reverse sweep option

Resistance
(ohms)

Minimum depth knob

Toe switch

Volume pedal also

Power

Tension adjustment

Footprint* (mm)
H (min – max) x W x L

Mooer

Expline

2

1- TRS
 2 - RTS

No

10K

No

No

No

Yes

No

48 x 55 x 128; 0.46Kg

Moog

EP2

1 hardwired7

TRS

No

50K

Yes

No

No

No

No

76.2 x 88.9 x 241; 1.13Kg

EP3

1

TRS

No

50K

Yes

No

No

No

No

80 x 90 x 240; 1.15Kg

Morley

M2 mini

2

1 - TRS
2 - RTS

No

10K

No

No

No

No

 

69.8 x 114 x 171

Mission engineering

EP-1

1

TRS

No

10K

No

No

No

No

Yes or spring loaded10

76.2 x 101.6 x 228; 1.45Kg

EP-1 classic
(crackle finish)

1

TRS

No

10K

No

No

No

No

Yes or spring loaded10

76.2 x 101.6 x 228; 1.45Kg

KP-EP11TRSNo10KNoYes (momentary)NoNoYes or spring loaded10 76.2 x 101.6 x 254; 1.45kg

EP-1R

1

TRS or RTS

No

10K

No

No

No

No

Yes or spring loaded10

76.2 x 101.6 x 228; 1.45Kg

SP-1

1

TRS

No

10K

No

Yes
(Latch) 9

No

No

Yes or spring loaded10

76.2 x 101.6 x 228; 1.45Kg

SP-1R

1

TRS or RTS

No

10K

No

Yes
(Latch) 9

No

No

Yes or spring loaded10

76.2 x 101.6 x 228; 1.45Kg

EP-25 Pro aero

2

TRS or RTS

No

25K

No

No

No

No

No

76 x 101 x 279; 1.59Kg

SP-25M Pro aero

2

TRS or RTS

No

25K

No

Yes
(mom)9

No

No

No

76 x 101 x 279; 1.59Kg

SP-25L Pro aero

2

TRS or RTS

No

25K

No

Yes (latch)9

No

No

No

76 x 101 x 279;  1.8Kg

EP-25K

2

TRS

No

25K

No

No

No

No

No

76.2 x 99.6 x 266; 1.43Kg

Expressionator18

3

TRS or CV

Yes

20K

Min and Max
independent

No

No

Yes

NA

28.4 x 111.7 x 63.5; 0.2Kg

Nektar

NX-P

1

RTS & TRS

no

10k linear

Yes

no

no

no

no

82.5 x 228.5 x 76.2; 0.32Kg

Nose

Big foot expression

2

TRS or TS 5custom order

Yes

10K

Yes

No

No

Yes

Yes

63.5 x 101 x 250;

Brand/model

Number of expression jacks

Polarity

Reverse sweep option

Resistance
(ohms)

Minimum depth knob

Toe switch

Volume pedal also

Power

Tension adjustment

Footprint* (mm)
H (min – max) x W x L

Oz Inventions

Xpression fX12
Motion

Unlimited11

TRS or RTS or TS or CV

Yes

50, 25 & 10Kohm compatibility

Min and max
independent

Yes

No

Yes

NA

35 x 60 x 112; 0.3Kg

Xpression fX12
MIDI Motion

5 pin DIN MIDI

NA

Yes

NA

Min and max
independent

Yes

No

Yes

NA

35 x 60 x 112; 0.3Kg

Xpression fX21
TRS Enhancer

1

TRS or RTS or TS or CV

Yes

50, 25 & 10Kohm compatibility

Min and max
independent

Yes

No

Yes

NA

35 x 60 x 112; 0.3Kg

Xpression fX21
MIDI Enhancer

5 pin DIN MIDI

NA

Yes

NA

Min and max
independent

Yes

No

Yes

NA

35 x 60 x 112; 0.3Kg

Pigtronix
 2TRSYes
(on one jack only)
20kNoNoNoNoYes63.5 x 101.6 x 254: 1.8Kg

Proline

PXP1

1
Hardwired

TRS or RTS

No

 

Yes

No

No

No

No

50 x  102 x 244;

Rocktron

Hex

1

RTS

No

250K

No

No

Yes

No

Yes

89 x 127 x 280; 1.59Kg

Utopia

1

RTS

No

250K

No

No

Yes

No

Yes

 

Roland


EV-5

1
hardwired7

TRS

No

10K

Yes

No

No

No

No

54 x 86 x 200; 0.4Kg

EV-7

1 hardwired7

TRS

No

10k

Yes

No

No

No

No

98 x 138 x 298; 1.2Kg

Saturnworks22

Full size

1

TRS

No

100K

No

No

No

No

No

31.75 x 63.5 x 114; 0.68Kg

Full size

1

TRS

No

10K

No

No

No

No

No

31.75 x 63.5 x 114; 0.68Kg

Full size

1

TS

No

10K

No

No

No

No

No

31.75 x 63.5 x 114; 0.68Kg


Sonicake
 1TRSNo10KNoNoYesNoNo148.5 x65.5 x 61; 0.25Kg

Source Audio

Dual exp SA161

2

TRS or sensor14

No

50K

Yes
(on OUT2)

No

No

No

No

 

Reflex

3

TRS or RTS or TS or CV

Yes

10k; 10k; 50k

Min and Max

Yes

No

Yes

Yes

70 x 95.3 x 267.7; 1.0Kg

Hot hand 313

115

TRS or RTS or TS or sensor14

Yes

10K

Min and Max

No

No

Yes

NA

24 x 38 x 65: 0.22Kg

Brand/model

Number of expression jacks

Polarity

Reverse sweep option

Resistance
(ohms)

Minimum depth knob

Toe switch

Volume pedal also

Power

Tension adjustment

Footprint* (mm)
H (min – max) x W x L

Thru-Tone


EX-S
1TRS, RTS or TSNo10k23 NoNoNoNoNo 

EX-ULT
1TRS, RTS or TSNo10k24 NoNoNoNoNo 
Zoom

FP02M

1

RTS

No

100k

No

Yes

No

No

No

70 x 86 x 195; 0.6Kg

FP02

1
hardwired7

RTS

No

100k

No

No

No

No

No

70 x 85 x 195; 0.6Kg

FP01

1

RTS

No

100k

Yes

No

No

No

No

 

Valeton

Surge EP-2

1

TRS

No

10k

No

No

Yes

No

No

61 x 65.5 x 148.5; 0.25Kg

Yamaha

FC-7

1
hardwired7

TRS

No

B50K16

No

No

No

No

No

57.9 x 116 x 250; 1.3Kg

 

1The Alesis F2 has an adjustable screw that can prevent the full toe down travel, and so works as a maximum depth control
2Like most pedals in this this list, the FCV100 is not a control voltage pedal, although it is advertised as one
3The Boss EV-10 has two expression outputs, but the reverse sweep option is available on one output only
4Crumar MJ-EXP1 has a long throw action, good for seated keyboard use
6The 4E dual axis has four 25k expression jacks. Two of these can be switched to 10k.
5Nose make custom pedals. Order as TS or TRS
7 hardwired -  There is no TRS jack, but rather a hardwired lead with a TRS plug on the end
8Next step expression does not have a physical toe switch. When rocked fully forward the unit toggles from effect to bypass mode
9mom/latch - Kit available to change between momentary and latch switching and toe switch height adjustable via additional washers for spacing.
 10spring loaded – Optional spring can be fitted so pedal returns to start position. No tension adjustment with this option
11Unlimited – Receiver unit contains one expression jack; Transmitter transmits to unlimited number of receiver units
12Xpression fX motion - Not a pedal; A free moving inertial sensing and control device that acts like a pedal
12Xpression fX enhancer - Not a pedal; Takes a standard TRS pedal as input, enhances it and gives it universal connectivity
13 hot hand 3 – Not a pedal; A free moving inertial sensing and control device; use up to four separate units simultaneously
14Sensor – is a 3.5mm TRRS jack used by Source Audio’s own effects units. TRRS and TRS cannot be used simultaneously on this pedal.
15Hot hand 3 can transmit to 4 separate devices
16’B’ designates a logarithmic potentiometer
17Independent - Each of the two expression jacks is fully independent of the other jack. Each has separate polarity, reversal and depth control
18Expressionator – Not a pedal; requires an expression pedal at input (10k – 25k recommended). Splits input into three outputs.
19Footprint - Height is closed height. Unless both closed and open heights are specified.
20 comes hardwired but can be ordered with a socket
21 Not a pedal, but a pedal enhancer
22 Can custom make, and has a range of set-and-forget expression pedals that come with a large rubber knob so they can be actuated with the foot.
23 Has a toggle switch that can be used to shift the taper range to one end, thereby acting as a log taper or an anti-log taper
24  Has a toggle switch that can be used to shift the taper range to one end, thereby acting as a log taper or an anti-log taper and has a further switch that allows switching between two effects units, or using an output as a mono switch such as for switching reverb on an amplifier