As more and more companies start adding MIDI 1/8" Jack inputs to their modules or standalone devices we have started to lose the MIDI thru... There is also the problem of two different standards with MIDI on 1/8" jack... Step up Delptronics, with their MIDI Thru module, this solves both of these problems.
More info at Delptronics
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FM, Vector, mono and poly module
Top end studio monitors?
Lemur and touch