Pricing and availability

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Average Price: $219

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$70

$251+

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Based on price data from 1 merchant for "Mission Engineering SP1-RB Roland / Boss Expression Pedal". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Unlock the true potential of your guitar rig with the Mission Engineering SP1-RB Roland/Boss Expression Pedal, a durable and versatile tool designed for the discerning guitarist. Crafted with all-metal construction, this pedal is built to withstand the rigors of both studio and stage environments. Whether you're manipulating modulation, delay, or controlling expression inputs, the SP1-RB delivers precise control over your sound. Its seamless compatibility with a variety of BOSS and Roland devices, including GT1000 Effects Processors and Katana amps, ensures that it integrates effortlessly into any setup.

The SP1-RB stands out with its innovative momentary footswitch, providing dynamic control over your effects with just a tap. This feature allows you to switch functions like never before, offering a new realm of creative possibilities. The pedal is topped with a non-slip rubber surface, guaranteeing stability whether you're on stage or practicing at home. Plus, with Mission's comprehensive warranty and service program, you're assured quality and reliability. Whether you're a touring professional or a home enthusiast, the SP1-RB is a game-changer for any pedalboard.

Key Features:

  • Compatible with BOSS and Roland controllers/effects processors
  • All-metal construction for durability
  • Momentary footswitch for dynamic effect control
  • Non-slip rubber pedal surface
  • Made in the USA
  • Backed by Mission's warranty and service program

Product specs

Type Expression Pedal
Inputs 1 x 1/4" TRS (expression)
Outputs 1 x 1/4" TS (momentary control)
Compatibility Roland or Boss Controllers/FX Processors
Power Source Passive
Height 3"
Width 4"
Depth 10"
Weight 3.2 lbs.

FAQs

Is the Mission Engineering SP1-RB compatible with all Roland and Boss products?

The Mission Engineering SP1-RB is specifically designed to be compatible with Roland and Boss controllers and effects processors, ensuring seamless integration with these products.

Does the Mission Engineering SP1-RB require a power source?

The Mission Engineering SP1-RB is a passive expression pedal, meaning it does not require an external power source to operate.

What is the function of the momentary footswitch on the SP1-RB?

The momentary footswitch on the SP1-RB allows for additional control options, such as toggling effects on/off or switching between presets in real-time during performances.

How does the Mission Engineering SP1-RB connect to my equipment?

The SP1-RB connects via a 1/4" TRS input for expression control and a 1/4" TS output for momentary control, making it easy to integrate with your existing setup.

Reviews

PROS

  • Smooth action enhances user experience

  • Solid build quality ensures durability

  • Compatible with multiple Boss/Roland devices

CONS

  • Toe switch mechanism feels mushy and unreliable

  • Requires unplugging and replugging for consistent switch operation

  • Inputs are too close, complicating pedalboard setup

  • Limited guidance on website for setup and compatibility

  • Expression range may fluctuate volume unintentionally

  • Glitchy switch can cause unintended effect toggling

  • Additional purchase needed for proper pedalboard mounting

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Mission Engineering SP1-RB Roland / Boss Expression Pedal.

Features and functionality

  • The Mission Engineering SP1-RB can be used with a GA-FC foot controller to mimic the toe switch functionality seen in Kemper setups.

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  • The SP1-RB's momentary toe switch allows for quick wah activation without the need for additional switches, simplifying live performance setups.

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  • The SP1-RB's toe switch can be configured in Boss Tone Studio to toggle between wah/whammy and volume pedal, offering versatile control in live settings.

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Software and compatibility

  • The SP1-RB is compatible with Boss Katana MKII models (50EX, 100, 100/212, Artist) when paired with a GA-FC, but not all functions are accessible simultaneously.

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  • The GA-FC FS-2 setting should be configured to Pedal FX on/off for optimal toe switch functionality with the SP1-RB.

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Use cases and applications

  • Owners find the SP1-RB's integration with the GA-FC beneficial for performance, offering a visual indicator in FUNCTION mode, enhancing live use.

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  • The SP1-RB is particularly effective for live performances, minimizing tap dancing by allowing quick on/off control of effects with its toe switch.

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  • The toe switch can potentially serve as a delay tap for patches where wah is not required, adding flexibility to live setups.

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User experience

  • Users report that the SP1-RB and GA-FC setup provides better visual indication of active effects compared to most traditional wah pedals.

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  • Owners note that integrating the SP1-RB eliminates timing issues associated with long pressing other footswitches for solo boosts, making it more efficient on stage.

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Comparisons

  • The SP1-RB offers a more streamlined alternative to using separate expression and FS-7 switches, reducing the amount of gear and simplifying pedalboards.

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  • Some users find the Mission Engineering SP1-RB adds more live-use functionality compared to the Boss EV-30, mainly due to the integrated toe switch.

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Mods and upgrades

  • Ensure the Mission Engineering pedal is specifically the RB version, as other versions with latching foot switches won't work correctly with the GA-FC.

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