Auditioning Magnepan MMGi's and 1.7i's (and possibly the 3.7i's) on Monday


I'm taking a trip, bringing my dad and my best friend, to a dealer just north of Chicago to audition the Magnepan MMGi's (http://www.magnepan.com/model_MMG) and 1.7i's (http://www.magnepan.com/model_17) (and possibly the 3.7i's (http://http//www.magnepan.com/model_MG_37)). I currently have a pair of Mirage M7SI's that I bought used (with an Onkyo TX-SV717PRO receiver) from a friend for $300. He really hooked me up. However, the speakers aren't very transparent/accurate. They have a nice, warm, and smooth sound to them (which I, and I think most would, prefer to a bright, metallic, and dry sound). They also are limited by their bass response. The woofer simply can handle only so many watts of power before it starts to clip (don't worry, I'm not frying them). It also does not go that low, but that's to be expected from a bass woofer, it isn't a subwoofer, after all. However, I still enjoy every minute of music when listening with them and don't see me selling them anytime soon.
Unfortunately, my end-game HIFI audio system's goal is to have an extremely transparent signal chain (very low distortion and very accurate/flat frequency response) with a great soundstage, one that totally immerses you. Any warmth, coloration, or general EQ I will add with a DSP (I am almost exclusively using digital mediums, usually FLAC files, for playback), as I see fit. So my Mirage's are a stepping stone.

Originally, my plan was to save up for a pair of Philharmonic's "3"'s (http://philharmonicaudio.com/phil3.html). They have ruler-flat frequency response and go all the way down to 20hz without the aide of a subwoofer. They use great, exotic (which I'm attracted to for some psychologic reason, probably to feel unique in owning unconventional technologies) drivers for their tweeter and midrange driver and a "regular" dynamic driver for the bass. They're only $3,500/pair, which, in my opinion, is a total steal (especially since a subwoofer isn't needed).
But recently, via the "audiophile" Subreddit, I was introduced to Magnepans. I knew OF them, but never really researched them and what they're about. So far I've come to these conclusions after a few days of research: Because of it's dipole design, there are more room reflections, which contributes to a large "soundstage". On top of that, the Quasi-Ribbon drivers themselves have excellent (horizontal) dispersion, making said "soundstage" even bigger and more immersive. The Magnepan's bass characteristics are superior to that of conventional, dynamic driver because of how fast-acting the Quasi-Ribbon is. It responds instantly and stops instantly (well, at least REALLY, REALLY fast). This equates to bass that has definition and accuracy, rather than be "boomy" and "flubby" as is more prevalent with dynamic drivers. The Quasi-Ribbon bass and midrange drivers, paired with the True Ribbon tweeter, deliver accuracy, nuance, and detail that is difficult to compete with without spending a LOT more than you would the Magnepans. My only concerns so far are the aforementioned room reflections being mishandled, such that I get phase cancellations, ruining the frequency response and sound, in general and the poor frequency range when it comes to the bass and sub-bass (they only go down to 40hz). This means that I'm going to have to place them very carefully in my listening room (the basement) and possibly treat specific walls with foam padding and then get a subwoofer (I'm looking at the Rhythmik L12 (http://www.rythmikaudio.com/L12.html) with my current budget.
The dealer that I'm visiting has a plan where you can upgrade your speakers (that you buy from them, of course) within one year and get your full money back of the speakers you are upgrading from. So, this would allow me to purchase the EXTREMELY affordable MMGi's, at $650/pair, and then later, after I've gotten my pay raise at work and saved up some money, upgrade to the 1.7i's, which are $2,000/pair. I MIGHT audition the 3.7i's just to see how much of a difference there is between it and hte 1.7i's, but I can't afford the $6,000/pair pricetag. But that means that I'll spend, on what I would consider end-game (or very near that) components of my HIFI system, $2,500, which includes the L12 subwoofer. That's $1,000 less than I was intending on spending/saving up for AND I get to own the MMGi's while I save up for the 1.7i's.
I guess my question to you guys is, what are your opinions on Magnepan speakers? What have been your experiences? Am I right in my assessment of their qualities, both bad and good? And ultimately, do you think that Magnepans are a good match for my particular sonic requirements?

Thanks in advance!
128x128hotboi
I have owned multiple Maggies from the SMGa to the 3.5, which I still have.  Maggies are not an “accurate” speaker.   What they are is a very musical speaker that people either tend to love and stick with or be ambivolent about.   Without listening, you really won’t know, as their sound signature is unique.

I caution you against getting caught up in “accurate/flat” in looking for speakers. There is no completely flat and accurate speaker and those that are closest (i.e. real studio monitors) tend to make most music sound pretty bad, as most is mixed poorly.  You are far better off finding speakers you like the sound of than worrying about “accuracy”,

You make no mention of the rest of your component plans. Your amplifier needs to work well with your speakers.  Maggies need a good amount of power and your receiver will not provide it.  The Mirages you have are a good speaker, but are also very insensitive (82.5 db/w) plus their impedence drops to 5 ohms in the bass.  As such you are not getting the best from them and I suspect some of the shortcomings you are finding come from your front end. 

If it were me, I would start from the other direction, Source, Dac, preamp, and amp.  Emotiva and Schiit both make excellent products for fair prices, or with research, good deals abound on the used market.  I would look at investing $1500-3000 in your front end before buying speakers.  $500 in room treatments can also make an amazing difference (look at GIK Acoustics). 
"Maggies are not an “accurate” speaker."
I found a different conclusion.
https://hometheaterhifi.com/reviews/speaker/floor-standing/magnepan-magneplanar-mg-17-flat-panel-quasi-ribbon-full-range-speakers/ The speakers are very flat in the mid to treble range. The bass measured high because of room reflections, according to the author. "I think that the distortion measurements at the low frequencies in this graph do not accurately reflect the true amount of distortion (I believe it is lower, as I didn’t hear any noticeable distortion in the lows or mid/lows)."
"I caution you against getting caught up in “accurate/flat” in looking for speakers. There is no completely flat and accurate speaker and those that are closest (i.e. real studio monitors) tend to make most music sound pretty bad, as most is mixed poorly. You are far better off finding speakers you like the sound of than worrying about “accuracy”,"
I know that there is no perfectly accurate speaker and I know full well that most recordings could sound bad on a system based on transparency. But as I stated in my original post, I want a transparent system so that I have options. Namely, the ability to listen to a well produced album with no coloration from my system and if a record isn't produced well I'll simply DSP it until I enjoy it. You can't have the best both worlds, like my future system, if you purchase gear that is already, intrinsically colored.
"You make no mention of the rest of your component plans. Your amplifier needs to work well with your speakers. Maggies need a good amount of power and your receiver will not provide it. The Mirages you have are a good speaker, but are also very insensitive (82.5 db/w) plus their impedence drops to 5 ohms in the bass. As such you are not getting the best from them and I suspect some of the shortcomings you are finding come from your front end."
110 watts per channel into 8 ohms should be enough drive the MMGi's, at the very least.

"If it were me, I would start from the other direction, Source, Dac, preamp, and amp. Emotiva and Schiit both make excellent products for fair prices, or with research, good deals abound on the used market. I would look at investing $1500-3000 in your front end before buying speakers. $500 in room treatments can also make an amazing difference (look at GIK Acoustics)."
I see what you're saying, but I disagree. The receiver should power the MMGi's just fine.
In support of @mcreyn who I do not know...

I encourage the OP to be open to the very feedback you requested. You asked the following:

I guess my question to you guys is, what are your opinions on Magnepan speakers? What have been your experiences?

Yet you discount perspective from an owner of multiple Magnepans.

"The woofer simply can handle only so many watts of power before it starts to clip (don’t worry, I’m not frying them)."

I agree with mcreyn.

If you have encountered any problem with the current Onkyo/Mirage setup, the issue is the speakers are underpowered. That speaker has an extremely low sensitivity, as stated by mcreyn, so any full range music played with even a somewhat high volume will cause the Onkyo to reach it’s maximum output on peaks. Now the sound character of the Mirage may not be what you want, but keep in mind that the MMGi is only 0.5 db higher in sensitivity, so for practical considerations, the same. You would still have the same problem playing at a moderately high volume.