I recently just set up my 2500 to sync up with reason, and i was having the same problems you were having. Phlexter helped me out with his post
http://www.mpc-forums.com/viewtopic.php?t=62317&highlight=perfect+reason+mpc
and some emails to clarify things. I find his method a lot faster and more usable than setting up all the different devices on different midi channels.
You seem to have the 2500 synced right if your transport controls on the mpc are controlling Reason 3.0. So here are some quick steps to have things running right:
on the mpc:
- create a new program, you will want to save this to have all these settings saved as a type of template when you want to use your mpc to control reason.
- switch the mode from "drum" to "midi" then leave it on midi channel 1a, you will not have to change this later on.
- go into "program" mode. Then into the "notes" section. You will notice that these notes are not in numerical order. Assign note "36" to pad 1, note "37" to pad 2, and so on. You may choose to do this for just bank a, or all 4 banks, its up to you. (REdrum only uses the first 10 notes to trigger sounds)
**If you have ever used Reason with a keyboard midi controller such as an M-Audio Oxygen 8 or Radium 49 you will know that you have to go down one octave to trigger sounds on the REdrum. By fixing the notes this is the same concept.
- Press Rec+Play and record your drum loop or what have you on the MPC, this way you can adjust the swing and timing and maintain the MPC feel.
Inside Reason:
- to trigger the different devices with your 2500, click on the little keyboard icon in the sequencer of the device that you want to trigger.
- When you have a drum loop or other programed melody recorded on the mpc that you are satisfied with, press the record icon on the Reason transport pannel then press play on the MPC to begin recording the sequence into Reason. By doing this, you stilll keep the 2500's timing and swing as stated as before
If you have anymore questions, feel free to PM me or Phlexter, he was very helpful.