I recently purchased an MR-16HD (w/o CD burner). I have been able to perform the most basic functions, but the more I read online, the more I believe I'm way off bass as far as connecting my equipment. I have an Alesis SR18 and a Focusrite Trackmaster Pro. I have been running my guitar into the Focusrite, then using one 1/4" cable to connect the Focusrite to the MR-16 (using Input A - unbalanced), then using another 1/4" cable from the Alesis into Input B of the MR-16. From reading online, I have seen suggestions about using two cables to connect the drum machine to the recorder to make it stereo (how?) and to use a Y-cable to connect the Focusrite to the recorder (again - how?). Any advice on how to connect these items correctly would be greatly appreciated!