I wasn't sure if this should be a Lounge post or an A/V post, so I put it in here.On my RD-700sx I have an Ernie Ball VP Jr volume/expression pedal connected to the first assignable pedal input ...

The fact you can use an expression pedal to take the place of the Action knob makes this a totally different proposition. What does the Action knob control? Again, no easy description, and how it ...

Whatever you call the PDF-1X, if you add a Stone Deaf EP-1 expression pedal (£83.34) to this and you've got wah and phase tones, overdrive, distortion, fuzz, EQ and volume boost/cut all in one pedal.

If you have a distortion pedal, for example, you could make all your delays sound crunchy and messed-up. You can achieve this by putting an insert cable into the expression-pedal input.

It's got stereo ins and outs, MIDI over 5-pin DIN and USB-C, expression pedal input and 80 user presets. The two foot switches are also assignable, so you can turn off only specific effects ...

The Wong Press might be a three-in-one but it has four-in-one functionality. You can use it as an expression pedal, a volume pedal, wah, or in a mode that combines wah and volume. Very clever.