Electronic User Guide
Congratulations on your purchase of the Mission Line 6 Expression Pedal. This product is designed to be intuitive to setup and operate, and to provide many years of trouble free service. However, we recommend that you take a few moments to read through this User Guide in order to get the best possible experience with your new pedal.
The Mission Line 6 expression pedals are designed to work optimally with Line 6 products. There are two Line 6 expression pedal models: EP1-L6 and SP1-L6H. The EP1-L6 is compatible with any Line 6 device that has an external expression pedal input. The SP1-L6H includes a switch that works with the toe switch input on the Line Helix Rack, Helix Rack Controller, and HX Stomp.
Depending on the Line 6 device, the expression pedal can be used to control variable parameters such as volume, wah, pitch, and other amp and effect parameters.
The EP1-L6 has one 1/4″ TS output on the left side marked OUT 1. Connect this to the expression pedal input of your compatible Line 6 device with a regular 1/4″ TS instrument cable. This is the only required connection on the EP1-L6. The other inputs and outputs on the pedal are unused and blanked off.
The SP1-L6H has a second output for the switch control. Connect this to the toe switch input on a Line 6 Helix Rack or Line 6 Helix Rack Controller using a 1/4″ TS instrument cable.
The HX Stomp has both the expression and switch functions on a single connector. Use a TRS insert cable (stereo Y cable) to connect the two outputs from the SP1-L6H to the TRS pedal input on the HX Stomp.
External expression pedal toe switch support is available on the Helix Rack, and HX Stomp only. The switch can be left unconnected when not required, or if the connected device does not support it.
The expression pedal and switch functions are passive. The expression pedals do not require a separate power supply or battery.
After connecting the pedals, it is necessary to configure the Line 6 device settings to tell it what you want the expression pedal to control.
The procedure is different depending on the Line 6 product, and is documented in your Line 6 product User Guide. Watch the step by step videos included in this electronic user guide for examples.
SP1-L6 Rev B
Revision B SP1-L6H pedals began shipping in December 2019. Rev B adds an enhancement to the pedal when used with the Line 6 HX Stomp. To connect a Rev B SP1-L6 to the HX Stomp, you may optionally use a single TRS cable in place of the TRS Y cable. This simplifies setup, and reduces wiring complexity on a pedal board.
To use this feature, connect a 1/4″ TRS cable from OUT 1 on the SP1-L6H to the EXP/FS input on the HX Stomp. No connection is required to output 2. The EXP function will be on the tip, and the FS function will be on the ring. If the factory default assignments are programmed on the HX Stomp, the expression pedal will control EXP1 and 2, and the switch will control FS5 which will toggle the expression pedal between 1 and 2. You can change the assignments from the Global Menu if required.
If the factory default assignments are programmed on the HX Stomp, you can quickly test the operation of the pedal by selecting preset 2B, Pedalbored. The expression pedal will control either volume or wah, and the foot switch will toggle between them.
If you have an SP1-L6H Revision A, these functions will still work, but you must use a Y cable to connect a Rev. A pedal to the HX Stomp. Rev. B pedals can use either a Y cable or a TRS cable.
To identify if you have a Rev B pedal check the output jacks. Rev A pedals have a metal washer, and Rev B have a plastic washer. Internally Rev A pedals are hardwired, whereas Rev B pedals utilize a PCB.
Can I use the SP1-L6H without the Helix Rack?
The Helix Rack, Helix Rack controller, and HX Stomp support the toe switch input with the SP1-L6H The expression function of the SP1-L6H will work with other Line 6 devices, and the switch output can be left unconnected.
The Mission Line 6 expression pedals are intended to be connected to Line 6 devices only and are not supported for use with other manufacturers products.
Which products are compatible with the SP1-L6H toe switch?
The Mission SP1-L6 switch works with the Helix Rack, Helix Rack Controller, and HX Stomp. The expression function of the SP1-L6H will work with other Line 6 devices, and the switch output can be left unconnected, or a Mission EP1-L6 without the switch can be used in it’s place.
Can I use the EP1-L6 with the Helix Rack?
Yes, the EP1-L6 can be used with the Helix Rack. When connecting multiple pedals, a single SP1-L6 with toe switch can be supplemented with EP1-L6 pedals for additional control.
The Helix Rack can support a single SP1-L6 plus up to three EP1-L6 pedals when used with the Rack Controller.
Can I use other Mission pedals with Line 6?
The Mission EP1-L6 and SP1-L6H are the only Mission supported expression pedals designed for use with Line 6 products. We do not recommend or support the connection of other expression pedals to Line 6 products
Can I use Mission Line 6 pedals with other products?
The Mission Line 6 expression pedals are intended to be connected to Line 6 devices only, and are not supported for use with other manufacturers products.
Can I modify my other Mission pedal to work with Line 6?
Making modifications, alterations or component changes to Mission products is not supported. Making unsupported changes may invalidate the warranty.
Read, Keep & Follow these instructions
Heed all warnings
Clean only with dry cloth
Do not use this apparatus near water
Do not expose the apparatus to dripping or
splashing and ensure that no objects filled with
liquids, shall be placed on the apparatus
WARNING: To reduce the risk of fire or electric
shock do not expose this apparatus to rain or
Unplug this apparatus during lightning storms or
when unused for long periods of time
Do not block any ventilation openings. Install in
accordance with the manufacturer’s instructions
Only use attachments/accessories specified by
Prolonged listening at high volume levels may
cause irreparable hearing loss and/or damage.
Always be sure to practice “safe listening.”
Refer all servicing to qualified service personnel.
Service is required when the apparatus has been
damaged in any way, such as:
Power-supply cord or plug is damaged
Liquid has been spilled or objects have fallen
into the apparatus
The unit has been exposed to rain or moisture
The unit is dropped or the enclosure is
The unit does not operate normally or changes
in performance in a significant way
Dismantling, rewiring, removing components or
otherwise altering the function of the unit may
cause unexpected behavior and will invalidate