For up-to-date technical information on the DUO, please go to the Strum Fix Plus DUO Information page.

Starting in late March (yes, about the same time that the pandemic really got going) I started shipping a new version of the Strum Fix. Functionally it’s the same as the previous version, but it does have a new circuit board — this circuit board is used for both the standard Strum Fix (with 1 strum bar) and the Strum Fix DUO (with a “split” strum bar).

This new version has a green circuit board and has the label “SFP02” on it. For the normal version only parts of the circuit board will be populated, so some parts will appear to be “missing” from the circuit board, but they are only needed for the DUO version.

On the DUO version there are now 4 sets of jumpers for setting the "strum direction” of the second strummer. Here’s some diagrams showing the jumper configurations: