Doepfer MBP25 Electronic with 2 Pedal

I've had this product for 1,5 year now and I'm very happy with it. I bought this product since I was looking for a 2 octave pedal for a cheap price and all the finished 2 octave pedals are way to expensive.
Electronics wise it's very simple to build, the casing however does take quite some time if you wanna do it right. But I think this time is definitely worth it, considering the very cheap price.
I've only used these pedals at home so far and they work excellent. Never had any trouble with it. All the functions you need are present, like transpose and midi channels.
I think these pedals should also be good for live use if you make sure that you build the case in such a way that it can protect the pedals for transport. But that should be perfectly possible. I haven't yet tested this out myself though.

Overall I think this is an excellent purchase for any one who wants a two octave pedal for a cheap price.

Firstly, the DoepferMBP25 works well, and does exactly what it suggests - it converts keystrokes to midi. However, unlike other Doepfer units, it's midi sockets are on fly cables and not on the board, so be prepared to desolder these so that they can be mounted on the box and re-attach.

The Fatar Keybed is a workable unit, and easy to cut to length. But that also means it's pretty flexible. You need to anchor it very well to a very stiff base. It will need extra anchor points, I used the gaps in the missing black notes to add screw down points.

To remove the extra C, you need to cut through the tracks on the circuit board. That means you have to put fly cables in to replace the missing part of the circuit board. Best way is to scratch some of the green resin off the remaining track and 'tin' the copper, solder the wire from this to the underside of the corresponding component.

Lastly, you must be prepared to remake all the key contact joints on the circuit board. Don't chase individual faults, just resolder the lot. The soldering on both my sets were poor, but resoldering was a complete cure, there were no mechanical issues.Don't let this put you off!

So it's cheap and effective, and not difficult to build - but needs a bit of work.

Been using it for 4months now. Meh...the thing irritating me is some pedals not making contact properly and therefore failing to produce a sound sometimes. Maybe it needs just a little tuning but I am afraid to touch the electronics because i usually make things worse. Pedals are also a bit shaky and made entirely of plastic, which it doesn't make me feel any better regarding its durability. I had a bit of a hard time with soldering the 2 pieces, I suggest to drill a small hole in the plaque to fix the stain or it won't stick! I found it to be compatible with my organs(viscount legend live , Roland vr09) and with a midi/USB adapter you may use it with a PC in your daw. If you build a case for it you may want to put the exp and sus pedals directly on top of it, making it more comfortable than other pricy pedalboards out there which don't allow it. At least it comes at a reasonable price. Happy practice and B happy!