Green Mountain Audio Chroma HX Review


I just had my Green Mountain Audio Chromas upgraded to Chroma HX. The difference is the crossover, with the capacitors being exceptionally high-grade. The low-pass filter is specially made to Roy Johnson's specifications. Unobtainium (not for sale) Litz wire is used with the latest unobtainium solder. The change is dramatic enough to consider the HX a different speaker, even though the schematic is essentially the same.

And the result is absolutely stunning. I was expecting a substantial improvement, but I was unprepared for the result. It's going to be difficult to put this into words, but I'm going to try. Let's face, we've heard it all before.

I have never heard a speaker that so effortlessly plays music. Every note has more music in it. I guess you could call that greater detail, but the HX transcends that description. Perhaps I should call it harmonic richness. The sound is unbelievably accurate, yet musical, throughout the frequency spectrum. The copious bass digs down deeper while being more well-defined. I would call it high-definition bass, to coin a term. The midrange is similarly tuneful, clear and also hi-def. It just flows naturally and cleanly. I would describe the treble as ethereal, sparkly and airy, never bright.

The HX is also the most coherent speaker I have ever heard. The woofer and the tweeter coexist happily. It is impossible to tell where the crossover frequencies are. You cannot hear the port either, just the bass. I find myself listening for hours, without fatigue, because the music captures my attention and holds it.

The sheer accuracy seems to lend itself to the soundstage, imaging with pinpoint precision. You know where every voice and instrument is at all times. This is an area of audio that I didn't much care about previously, but I cannot ignore now.

Any criticisms? Well one, maybe. If you like to crank the bass hard enough to drive your neighbors to yell death threats, you're going to need a powered sub.

I have heard many speakers in my time, among them Wilson Audio, Joseph Audio, Paradigm, Triangle, Meadowlark, Dali, Thiel, Usher and Vandersteen. None of them can deliver what the HX can. It's not even close. If you have a pair of the already excellent Chromas, HXing them is a must. I have found the speakers that I am going keep for life in the Chroma HX.

Related equipment:
Musical Fidelity A308cr with upgraded clocks
Audio Note Kits DAC 2.1
Pass Labs B1 buffered passive pre modified for shunt volume control
Pass Labs Aleph 3 power amp
BPT BP-1 balanced power conditioner
Audio Magic Matrix Mini power conditioner
Pass Labs Aleph 3 power amp


dave122
@ctsooner, take it down a notch. You wouldn’t have jumped in if Vandersteen wasn’t mentioned.  Candidly, GMA’s are more similar than dissimilar to the Vandersteen design principles.  If you don’t have the physical space for Vandersteen’s, you can do MUCH worse than GMA 2-ways (I say this as an owner of both). 
Renter, I guess that's fair.  I would have jumped in actually. I did the same on another thread on another site a couple of weeks ago.  Someone made a very similar statement about Wilson and Magico and I did say teh same thing. I try to be constant at least, lol.

As you noticed I didn't say anything against the GMA and never would.  I hope most understood the point I was trying to make.  As I said, it's great that folks love what we own or even love what we want to own, lol.  

Sorry if I ruffled a feather or two. Wasn't my intent at all.  Pete
I also own the EOS speakers in question; they are just as described open articulate and transparent. They are the finest speakers I have ever heard in my system. You need to hear them. I just attended the  stereo show in Oakland, Ca. this past weekend and none of the systems at the show sounded as  fine as  I hear at home. Do yourselves a favor and go hear these remarkable speakers., retired AT&T engineer

















7
















































7























a
engineer

&&

















































a



























I'm glad to hear that GMA is still around.  I looked at these before I bought my Egglestonworks Andra 2 and liked the design ethos.  I'm looking for monitors for a small system and may need to revisit if there is somewhere in SoCal to hear them.
@golfers - I have similar experience.  I have listened to Spendor, Sonus Faber, Dynaudio, Gallo and several other monitors.  I have never been inclined to get rid of the EOS HX. I do have 2 listening rooms and in my other room I have Klipsch Cornwall modded - these are driven my a LFD integrated and Schitt DAC.  

Between these 2 systems I find most music genre's are covered.  I do have a inclination to try and cycle through some Devore Fidelity Nines.  I have not heard, but the reviews seem to be wonderful.  Moreover, they rarely come up used.  When I cannot find on the used market I carry the belief owners must really like.