As many of you know, I recently picked up a used JVM210H and a Marshall 1936 cab. Since I just knew I'd go to a 4x12 at some point, I decided that there was no time like the present and scooped a 1960A that is in great condition for $500 (Canadian). I will be exchanging the 1936 for it later today. I am normally a combo guy and never have to worry about ohms or inputs, so I need some help. My understanding is that I can plug the JVM into the 1960 using either the 16ohm or the 4ohm connection on the amp. Is that correct? If so, does it make any difference which I choose (ie. does the choice affect the sound in some way)? If that isn't correct, which should I use - 16ohm or 4ohm? The cab won't arrive until later in the week so I've got time to learn before I'll have to connect them. Thanks in advance.