Which to Upgrade first? My Amplifier or Speakers?


I have owned a nice system for years, but I am hardly an audiophile. You people impress me with your depth of knowledge of audio. I've been following this site for some time. This is my first post.
From time to time I replace or upgrade components. I've got a tricked out Linn Sondek LP 12 turntable. I recently acquired a McIntosh MP 100 phono amp and am hearing LP's now that exceed anything I've heard on CD's and equal if not exceed the output of my SACD's. I bring this up only to give a flavor of what I listen to.
The issue is as follows: I have a McIntosh MC 206 Amp that I bought in 2003 that puts out 200 watts per channel. I have no issues with it, although I've never had anything to compare it with. I've read some impressive reviews of how much of a difference an amplifier can make to the quality of sound output. For speakers I have Magnepan 3.6R's that I also bought in 2003. I love them. I can only afford to upgrade one at a time - let's say in the neighborhood of 10 - 12K. So, I'd like to hear what this august body has to say about which I should upgrade first and why? The amp or the speakers? Thank you.
normantaylor
So what I’m reading, you love your amp, you love your speakers, you love your turntable, and you really love your new phono stage.

For good reason, I would say. Those are all really good, highly regarded components. Congratulations!

Now the bad news. Being so good makes it really hard finding replacements that will be true genuine upgrades and not merely different but around the same level.

The easy way out (for me) is do like everyone else and stick to your literal question only being me answer it better with get Tekton Double Impacts or Moab or Ulfberht something like that.

But that would be doing you an injustice. You got a nice system. No wonder you love it. What you want I’m guessing is more of what you just got with the phono stage.

The good news is the price range you are in will get you the newest and just about the best Synergistic Research interconnect and speaker cables, Atmosphere Level III Euphoria. Which if you think you love your new phono stage, wait till you hear these! Absolutely guaranteed to rock your world. (Literally, guaranteed: all Synergistic come with 30 day guarantee.) Plus maybe even have $$ left over for a full complement of PHT, ECT, HFT and some Orange Fuses.

Or just get the Ulfberhts. http://v2.stereotimes.com/post/tekton-design-ulfberht-loudspeaker/ Either way, you can thank me later.
JanZen has a hybrid dynamic/electrostatic in your price range that has gotten excellent reviews!
Norman, don't let yourself be too impressed... : )

Since you can only upgrade one component at a time, given that the Maggies are harder to drive...if it were my choice, I would start with the speakers.

Reason being: the Maggies will force / restrict amplification choices should you keep them and choose to upgrade the amp first.

For speakers, I'd narrow it to a category of speaker type. Since you have had electrostatic and panels for nearly 17 years, perhaps be open to another speaker category.

Personally, I recommend higher efficiency speakers...they will offer you a much broader amplification palette to choose from. And should you choose a higher efficiency speaker you can enjoy them with your McIntosh amp until you are in a position to replace it.

FYI, Maggie 1.7s driven by a McIntosh stack are one of my favorite (top) local audiophile systems. 
You have a system you seem to really enjoy.  My question is why change something now.  If you want a different sonic specifically, then pursue that.  Otherwise speakers make the biggest difference. 
You are an audiophile but refuse to admit it.
Vinyl, SACD, McIntosh.   All the symptoms.
Enjoy.
+1 stereo5! Keep the McIntosh amp! Those 3.6R's are really nice! Since you like planar sound you can consider a pair of Quad 2905's.
The biggest difference will come from getting different speakers. This would enable you to see how the McIntosh drives the speakers. You already have an excellent amp, a newer McIntosh won’t sound that much better than what you have and probably not worth replacing it for the very small difference in sound.