Product does NOT COMPLY with Midi standard! Never again
For 20 way MIDI Thru Splitter unit for synthesizers
Every Midi product I use in my music setup will be tested in my lab for conformity. I was shocked, that for such a simple device as this midi splitter, almost everything that can be done wrong was done wrong. It might work, no question, but it ignores everything the midi standard sets. All standard 220ohm resistors between the power line as well as for the midi driver signals are missing! Wrong cable use can destroy the unit/power supply and the midi signals are not properly decoupled! Driver Impedance is totally miss matched! The PCB layout is so badly done, that the Midi Outputs are heavenly ringing and producing extra spikes (could provide pictures)
Sorry but there are to many people these days developing electronics and selling it for good money, but all they seem to know about electronics is, where the hot end of the soldering iron is.
I fixed all the problems by moding the complete unit (spending about 8h). It is now a perfect unit, doing exactly what it should, everything within the standard, delivering perfect signals with no latency. But originally I wanted to buy that, not build it my self :-(