SD2 has no MIDI out, the other MIDI plug is MIDI Thru.

You only need ONE MIDI connect to SD2 here, that would be the SD2 MIDI INput, connected to computer's MIDI OUTput.

No flashing blue LED on the SD2 means that there is no MIDI data being received.

This can happen with a bad physical connect (MIDI cable going to wrong place at either end) or not selecting the right MIDI output routing in the host software.

That blue LED should be steady state to indicate the unit is on and working properly when not receiving any MIDI data, BTW. The wallwart is necessary for the SD2 to provide power.

*Are you using a different USB device than your sound device to attach the SD2 to the computer?



--Mac