The MXR Bass Synth can support either an Aux switch, or an Expression pedal, on it's CTR jack. This fun little device lets you swap between the two! Utilize the front switch to jump between Expression Pedal mode, and Aux Switch mode.
In Expression Pedal mode, your connected TRS aux switch will be connected with the MXR Bass Synth. Press the switch again and it'll change to Aux mode, where the single button aux switch will be connected to the MXR Bass Synth
Additional information
| Weight | 4 oz |
|---|---|
| Dimensions | 2.6 x 1.7 x 1.7 (LxWxH, in Inches) |
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MXR AuxSwap Mini
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So one switch acts toggles between expression and tap, and the other switch is the “tap temp” to move between presets?
Bryce asked on March 15, 2026
Yup, exactly! For the tall-switch, a quick press scrolls forward and a press-and-hold scrolsl backwards in presets. And both the full-size and the Mini have the same functions/behavior, just different sizes.
Pedalnetics answered on March 16, 2026 store manager
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SKU: mxrauxswapmini
Categories: Auxiliary Switches, Reverb Crosspost Effects & Pedals, Uncategorized
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