A question for Maggie owners

tgrisham, it sounds like you're "in the driver's seat," which is a good place to be; not desperate and not starry-eyed. Some thoughts for you from my experiences with Maggies and other panels over the years...

As can be seen in my virtual system I own both dynamic and panel technologies as they both have virtues and drawbacks/limitations. I noticed your HSU sub which you can pair with panels. I happen to have two HSU STF-1 subs in my office system with a pair of Eminent Technology LFT-VI speakers. I have been very pleased with the HSU subs and would consider them again for future systems if needed. I think they have blended quite well with the magnetic planar technology as they are quite configurable.

If possible you may wish to own both speakers. I'm sure at first you will be bowled over by the panel sound, but over time you will notice that aspects of the sound which only a dynamic speaker can convey are missing. It is possible the sound of the panel will be wierd/strange to your ears at first, but your ears will adjust over time. Likely after a week or so you will start to love the sound, if not sooner.

But at some point you will realize that you are missing some of the performance characteristics of a dynamic speaker and you would likely start to yearn to own one again. The seesaw action would have begun - back and forth between speaker types. I finally put a stop to that with ownership of both and have never been happier as an audiophile in 25 years plus of being in the hobby.

I did start with an MMG many years ago and rapidly advanced to the 1.6. You would be leaping upward in sound quality hugely to go for the 1.7 over the MMG.

Whatever you decide, it appears as though you will have an enjoyable time! Just remember that you will never own the perfect system, as it doesn't exist. Think of the process more as a journey than a destination which is supposed to give perfect satisfaction.

Do not skimp on cables; explore aftermarket cables as this is a critical factor in exploiting all the newfound performance of speaker changes. If you find a cable brand with a high performance to cost ratio it will be worth every cent you spend on it! I do not see any mention of designer cables in your system listing; I assure you that you will see a huge benefit to your rig's sound if you spend time investigating/trying cables - including power/digital/interconnect/speaker. Over the years of using dozens of sets of cables from different makers I consider cables to be as important as any other component of a system. You can literally kill a rig's sound or elevate it incredibly via cabling.

I don't know if you still have the EE DAC or not, but if so and you like it I strongly urge you to upgrade to the EE DAC Plus version. The benefit is way beyond the $400 or so difference in price.

Finally, I caution you that you may not be happy entirely with the W4S/Maggie combo. I have used the W4S Class D with the Emerald Physics CS2 in my room and tried the W4S with the Eminent Technology LFT-8B speakers (reviewed; I reviewed a lot of the stuff I'm discussing but not the Magnepans). Class D and the maggie may sound too strident for your ears. You can ameliorate the issue with cabling to a degree but may have to consider a different amp. In the long run while macrodynamics and transients can be thrilling with Class D amps I was never fully satisfied with the tonality of them. They are recommendable for certain purposes and systems and for some peoples' preferences but definitely not a perfect solution across the board, especially for panel speakers. It is very good that you have the subwoofer, and you may want to consider a second one as this does make a significant difference in the experience, even with panels.

Some would say the 'best bang 4 buck' would be a pre-loved pair of the 1.6 followed by a trip to magnestand for the full wood frame / stand / crossover mods.
Magnepans is the DIY speaker. The stuff I already mentioned is on the table, but even un modified you have to do detailed setup.
For example, I experimented with Tweeters in/out and pole piece forward or to the rear. Toe is critical. Measure everything as you go and take notes, if necessary.
3 feet from the front wall is dead minimum. 5 feet works better, since the ear will hear the reflected sound differently with more time delay.
Sub integration is a real joy, too. Do your setup WITHOUT sub to get the mains best than add the sub. All the usual rules apply. With panels you still have the full range VS cut off lows option, as well. I run full range and set my crossover to near the LF panel limit and have a pretty good blend.
Go check out the Planar Asylum and maybe even Magnepan Users Group for the real nut-jobs. I like it.
Now, Magnepans have a real house sound. As you go up-line, you simply get more. The MMG at 600$ is a bargain and has guaranteed trade-up value OR the ala carte resale market...you choose.
Just make sure your room is panel friendly. Some diffusion between 'em is nice or a couple fake ficus behind. The opposite wall can be damped, as well. They load the room differently than box speakers, so experiment.

Enjoy.

Maggies are, first and foremost, planar speakers. The dispersion of sound is quite unlike the typical "point source" speaker. A "line Array" speaker is somewhat similar.

You must first decide if you like the planar characteristics. Some do and some don't. After that you can worry about bass response. People who get all upset about Maggie bass response have been reading too many specs instead of listening. The perfectly smooth nature of the bass rolloff largely compensates for the fact that, except for the largest Maggies, the lowest octave if you need it, is left to a subwoofer.

eldar,
Yes and yes.
I'd add that the low sensitivity is made easier to take by what you refer to. The level doesn't drop with distance as quickly as box speakers. And, they are an easy load, so many amps are a good electrical match, even if you don't prefer the sound or presentation.

Talking line-source, many users will swear by the 8 foot ceiling as best.

just a quick note - as said before, Maggies love power.

I'm running 1.6QRs and got a very noticeable improvement by bi-amping. I run 250Ws of Threshold power on the bottom and use a tube amp on top. Bass is rolled off on the tube amp since it doesn't need to reproduce those frequencies anyways.

The sound difference with the tube amp in place was jaw-dropping.