Magnepan 3.7 Jumper Direction?

"He then changed some resistor, the electronics and the cables and all of a sudden the music took shape and snapped into place. It's not my cup of tea, but the everything he did made them sound that much better."

That's really not a cable issue. Magnepan is known for having bright/harsh sounding highs. They give you the resistors so you have the option of backing off on the highs.

OP,

It shouldn't matter which way you run the jumpers (at least with your cables). The direction is for break in. If for some reason, you unhooked your cables and put them back going the opposite way, you would need to fully break in the cables again.

"Magnepan does NOT have 'bright harsh highs'. If you experience this with your Maggie ribbons, I suggest your electronics suck, and not the Maggies."

Then why does Magnepan give you the jumpers to begin with? The jumpers are not a 3rd party solution. This is how Magnepan deals with the problem. Call them and they'll tell you. You may not have to use them in your system because when you link active preamps, using them both at the same time, the result will very likely roll the top end off.

As far as my electronics goes, what pieces suck?

"I do not read what Elizabeth's comment regrading Maggies not having harsh highs is in response to. A poster did reference grain. So what did I miss? Like most, I haven't experienced harsh highs in either my 1.7s or 3.7s."

That was probably my doing. If you read the very first response by Ctsooner, he talks about John at Audio Connection installing the resistors on the Magnepan's and the result was better sound. I just mentioned that its probably not a cable issue, but a speaker issue since Magnepan knows about this and actually supplies the resistors with the speakers.

As for you not experiencing harsh highs with your Magnepan's, that's good. Don't let a post by me, or anyone else, stop you from enjoying your speakers. Its entirely possible you did a better job matching your electronics to the speakers and set them up properly. You're getting good results and that's all that matters.