MOTUnation.com

i use a novation remote 25 controller into MIDI in A on my usb fastlane and an m-audio keystation 88 into MIDI B on my usb fastlane, as the remote 25 is right next to my computer keyboard and in front of the monitor for quickly messing with sounds and tweaking, and has nice non-hevily weighted keys for more organ sounds and such and the keystation 88 is there for when i want to really dig in and play and want weighted keys, thing is on the remote 25 everything sounds fine but i noticed on the keystation 88 i get a weird flange that sounds like it's hitting the keys twice as the same time or something, anyone have any idea why that would be and how i might fix it?

Sounds like you have the keystation 88 sending and receiving MIDI on the same channel which is creating a MIDI loop. Check your MIDI settings in the AUDIO MIDI setup app. and uncheck the MIDI receive channels.

Hope this helps.