Reason MIDI Keyboard Question

[cmoneyallday]

sup all

im using Reason 2.5 on an iMac and i have an oxygen 8 hooked up via the usb port.. now.. i got it plugged in and all that and im gettin voices when im hittin the keys through Reason but the problem is that when i switch MIDI control from lets say the NN19 to the Maelstrom via moving that white circle to the left of the device, I either will still get the NN19 voice or itll play the Maelstrom *on top of* the NN19.. although the green level bar and mixer levels seem to say that everything's fine.. and it seems only sometimes does it do this.. I gotta think that my setup is screwed up but I cant seem to fix it and the guide didnt point me towards gettin it fixed either..

as far as preferences go:
under MIDI - Port: [1x1] Port 1 (with green check) and Channel: 1
under Advanced MIDI - Bus A - Bus D: [1x1] Port 1 (with green check)
Remote Control and MIDI Clock Sync: No MIDI Input

as far as my MIDI IN DEVICE:
Channel 1 - Channel 4 are each set to a separate device (NNXT, NN19, Maelstrom & Subtractor, respectively)

sorry for the length but this way i dont hafta do too much answering of basic questions.. thanks in advance for any help

 

[ssscientist]

as far as my MIDI IN DEVICE:
Channel 1 - Channel 4 are each set to a separate device (NNXT, NN19, Maelstrom & Subtractor, respectively)

You need to have nothing in the top menu if you do not want the synths to layer as you are describing.

Uncheck/undo/deselect the top row so that it's blank.

Then move the midi circle from one track to another in the sequencer screen. This will let you hear one synth at a time.